Air Quality Designations for the 2010 Sulfur Dioxide (SO2) Primary National Ambient Air Quality Standard-Round 3

Federal RegisterJan 9, 2018

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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 81

[EPA-HQ-OAR-2017-0003; FRL-9972-73-OAR]

Air Quality Designations for the 2010 Sulfur Dioxide (SO

) Primary National Ambient Air Quality Standard—Round 3

AGENCY:

Environmental Protection Agency (EPA).

ACTION:

Final rule.

SUMMARY:

This final rule establishes the initial air quality designations for certain areas in the United States (U.S.) for the 2010 sulfur dioxide (SO

) primary National Ambient Air Quality Standard (NAAQS). The Environmental Protection Agency (EPA) is designating the areas as either Nonattainment, Attainment/Unclassifiable, or Unclassifiable. The designations are based on application of the EPA's nationwide analytical approach and technical analysis, including evaluation of monitoring data and air quality modeling, to determine the appropriate designation based on the weight of evidence for each area. The Clean Air Act (CAA or Act) directs areas designated Nonattainment by this rule to undertake certain planning and pollution control activities to attain the SO

NAAQS as expeditiously as practicable. This is the third of four expected sets of actions to designate areas of the U.S. for the 2010 SO

NAAQS.

DATES:

The final rule is effective on April 9, 2018.

ADDRESSES:

The EPA has established a docket for this action under Docket ID No. EPA-HQ-OAR-2017-0003. All documents in the docket are listed in the index at

http://www.regulations.gov

website. Although listed in the index, some information is not publicly available,

e.g.,

Confidential Business Information or other information whose disclosure is restricted by statute. Certain other material, such as copyrighted material, is not placed on the internet and will be publicly available only in hard copy form. Publicly available docket materials are available either electronically in the docket or in hard copy at the Docket, WJC West Building, Room 3334, 1301 Constitution Avenue NW, Washington, DC 20004. The hours of operation at the EPA Docket Center are 8:30 a.m.-4:30 p.m., Monday-Friday. The telephone number for the Public Reading Room is (202) 566-1744. Air dispersion modeling input and output files are too large to post in the docket or on the website and must be requested from the EPA Docket Office or the Regional office contacts listed in the

FURTHER INFORMATION

section.

In addition, the EPA has established a website for the initial SO

designations rulemakings at:

https://www.epa.gov/sulfur-dioxide-designations.

The website includes the EPA's final SO

designations, as well as state and tribal recommendation letters, the EPA's modification letters, technical support documents, responses to comments and other related technical information.

FOR FURTHER INFORMATION CONTACT:

For general questions concerning this action, please contact Liz Etchells, U.S. EPA, Office of Air Quality Planning and Standards, Air Quality Policy Division, C539-01, Research Triangle Park, NC 27709, telephone (919) 541-0253, email at

etchells.elizabeth@epa.gov.

The EPA contacts listed at the beginning of the Supplementary Information can answer questions regarding areas in a particular EPA Regional office.

SUPPLEMENTARY INFORMATION:

U.S. EPA Regional Office Contacts:

Region I—Leiran Biton, telephone (617) 918-1267, email at

biton.leiran@epa.gov.

Region II—Ken Fradkin, telephone (212) 637-3702, email at

fradkin.kenneth@epa.gov.

Region III—Ruth Knapp, telephone (215) 814-2191, email at

knapp.ruth@epa.gov.

Region IV—Twunjala Bradley, telephone (404) 562-9352, email at

bradley.twunjala@epa.gov.

Region V—John Summerhays, telephone (312) 886-6067, email at

summerhays.john@epa.gov.

Region VI—Bob Imhoff, telephone (214) 665-7262, email at

imhoff.robert@epa.gov.

Region VII—David Peter, telephone (913) 551-7397, email at

peter.david@epa.gov.

Region VIII—Adam Clark, telephone (303) 312-7104, email at

clark.adam@epa.gov.

Region IX—Anita Lee, telephone (415) 972-3958, email at

lee.anita@epa.gov.

Region X—John Chi, telephone (206) 553-1185, email at

chi.john@epa.gov.

The public may inspect the recommendations from the states, territories and tribes, our recent letters notifying the affected states, territories, and tribes of our intended designations, and area-specific technical support information at the following locations:

Regional offices

States

Dave Conroy, Chief, Air Programs Branch, EPA New England, 5 Post Office Square, Suite 100, Boston, MA 02109-3912, (617) 918-1661

Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island and Vermont.

Richard Ruvo, Chief, Air Programs Branch, EPA Region II, 290 Broadway, 25th Floor, New York, NY 10007-1866, (212) 637-4014

New Jersey, New York, Puerto Rico and Virgin Islands.

Maria A. Pino, Acting Associate Director, Office of Air Program Planning, EPA Region III, 1650 Arch Street, Philadelphia, PA 19103-2187, (215) 814-2181

Delaware, District of Columbia, Maryland, Pennsylvania, Virginia and West Virginia.

R. Scott Davis, Chief, Air Planning and Implementation Branch, EPA Region IV, Sam Nunn Atlanta Federal Center, 61 Forsyth, Street, SW, 12th Floor, Atlanta, GA 30303, (404) 562-9127

Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina and Tennessee.

John Mooney, Chief, Air Programs Branch, EPA Region V, 77 West Jackson Street, Chicago, IL 60604, (312) 886-6043

Illinois, Indiana, Michigan, Minnesota, Ohio and Wisconsin.

Alan Shar, Acting Chief, Air Planning Section, EPA Region VI, 1445 Ross Avenue, Dallas, TX 75202, (214) 665-6691

Arkansas, Louisiana, New Mexico, Oklahoma and Texas.

Mike Jay, Chief, Air Programs Branch, EPA Region VII, 11201 Renner Blvd., Lenexa, KS 66129, (913) 551-7460

Iowa, Kansas, Missouri and Nebraska.

Monica Morales, Air Program Director, EPA Region VIII, 1595 Wynkoop Street, Denver, CO 80202-1129, (303) 312-6936

Colorado, Montana, North Dakota, South Dakota, Utah and Wyoming.

Anita Lee, Air Planning Office, EPA Region IX, 75 Hawthorne Street, San Francisco, CA 94105, (415) 972-3958

American Samoa, Arizona, California, Guam, Hawaii, Nevada, Northern Mariana Islands, Navajo Nation and the Hopi Tribe.

Debra Suzuki, Manager, State and Tribal Air Programs, EPA Region X, Office of Air, Waste, and Toxics, Mail Code OAQ-107, 1200 Sixth Avenue, Seattle, WA 98101, (206) 553-0985

Alaska, Idaho, Oregon and Washington.

The information can also be reviewed online at

https://www.epa.gov/sulfur-dioxide-designations

and in the public docket for these SO

designations at

https://www.regulations.gov

under Docket ID No. EPA-HQ-OAR-2017-0003.

Table of Contents

The following is an outline of the Preamble.

I. Preamble Glossary of Terms and Acronyms

II. What is the purpose of this action?

III. What is the 2010 SO

NAAQS and what are the health concerns that it addresses?

IV. What are the CAA requirements for air quality designations and what action has the EPA taken to meet these requirements?

V. What guidance did the EPA issue and how did the EPA apply the statutory requirements and applicable guidance to determine area designations and boundaries?

VI. What air quality information has the EPA used for these designations?

VII. How do the Round 3 designations affect Indian country?

VIII. Where can I find information forming the basis for this rule and exchanges between the EPA, states and tribes related to this rule?

IX. Environmental Justice Concerns

X. Statutory and Executive Order Reviews

A. Executive Order 12866: Regulatory Planning and Review and Executive Order 13563: Improving Regulation and Regulatory Review

B. Executive Order 13771: Reducing Regulations and Controlling Regulatory Costs

C. Paperwork Reduction Act (PRA)

D. Regulatory Flexibility Act (RFA)

E. Unfunded Mandates Reform Act (UMRA)

F. Executive Order 13132: Federalism

G. Executive Order 13175: Consultation and Coordination With Indian Tribal Government

H. Executive Order 13045: Protection of Children From Environmental Health and Safety Risks

I. Executive Order 13211: Actions That Significantly Affect Energy Supply, Distribution or Use

J. National Technology Transfer and Advancement Act (NTTAA)

K. Executive Order 12898: Federal Actions To Address Environmental Justice in Minority Populations and Low-Income Populations

L. Congressional Review Act (CRA)

M. Judicial Review

I. Preamble Glossary of Terms and Acronyms

The following are abbreviations of terms used in the preamble.

APA Administrative Procedure Act

CAA Clean Air Act

CFR Code of Federal Regulations

DC District of Columbia

EO Executive Order

EPA Environmental Protection Agency

FR Federal Register

NAAQS National Ambient Air Quality Standards

NTTAA National Technology Transfer and Advancement Act

OMB Office of Management and Budget

Sulfur Dioxide

Sulfur Oxides

RFA Regulatory Flexibility Act

UMRA Unfunded Mandate Reform Act of 1995

TAR Tribal Authority Rule

TAD Technical Assistance Document

TSD Technical Support Document

U.S. United States

II. What is the purpose of this action?

The purpose of this final action is to announce and promulgate initial air quality designations for certain areas in the U.S. for the 2010 SO

NAAQS, in accordance with the requirements of the CAA. The EPA is designating areas as either Nonattainment, Attainment/Unclassifiable, or Unclassifiable, based on the definitions described in Section IV in this preamble, and based on evaluating any available information, including (but not limited to) appropriate modeling analyses and/or monitoring data.

This is the third round of designations for the 2010 SO

NAAQS. As discussed in Section IV of this document, the EPA is designating SO

areas in multiple rounds. The EPA completed the first round of SO

designations in an action signed on July 25, 2013 (78 FR 47191; August 5, 2013). In that action, the EPA designated 29 areas in 16 states as Nonattainment, based on air quality monitoring data. In the second round of SO

designations, in actions published on July 12, 2016 (81 FR 45039), and December 13, 2016 (81 FR 89870), the EPA designated 65 additional areas in 24 states: 7 Nonattainment areas, 41 Unclassifiable/Attainment areas and 17 Unclassifiable areas. In this third round, 6 areas are being designated Nonattainment; 23 areas are being designated Unclassifiable; and the rest of the areas covered by this round in all states, territories, and tribal lands are being designated Attainment/Unclassifiable. In a future fourth round, the EPA expects to designate all remaining undesignated areas (approximately 50 areas) where states have installed and begun timely operation of a new SO

monitoring network.

The list of areas being designated in the affected states and the boundaries of each area appear in the tables for each state within the regulatory text at the end of this document. For areas in this action that meet our definition of “Attainment/Unclassifiable,” the EPA notes this inversion, from previous rounds, of the order of the words “Attainment” and “Unclassifiable” in the amended term “Attainment/Unclassifiable area” has no consequence itself, and that there are no regulatory consequences of this change in, or clarified interpretation of, terminology to the areas in which the terms “Attainment/Unclassifiable” or “Unclassifiable” are applied. For consistency, we are also inverting the order of “Attainment” and “Unclassifiable” for areas previously designated in Round 2 (81 FR 45039 and 81 FR 89870). This re-ordering of the terms has no regulatory consequence and does not revisit the determinations made in Round 2 for these areas. The EPA believes this change is consistent with Congress's definition of “Attainment area” in CAA section 107(d)(1)(A)(ii), and will improve public understanding and make clearer what regulations apply to areas designated in this way, which states have commented they believe is important for the economic development of such areas.

These designations are based on the EPA's nationwide analytical approach and technical assessment of and conclusions regarding the weight of evidence for each area, including but not limited to available air quality monitoring data or air quality modeling. With respect to air quality monitoring data, the EPA considered data from at least the most recent three calendar years 2014-2016 as available. In the modeling runs conducted by states or third parties, the impacts of the actual emissions for recent 3-year periods (

e.g.,

2012-2014, 2013-2015, 2014-2016) were considered. In some cases, the modeling evaluated current allowable

emissions limits in lieu of or as a supplement to modeling of actual emissions. As described in Section VI and in limited circumstances, the EPA may consider early certified 2015-2017 monitoring data or other documentation that demonstrates Attainment. This information would need to be submitted to the EPA by February 28, 2018. For the areas being designated Nonattainment, the CAA directs states to develop and submit to the EPA State Implementation Plans (SIPs) within 18 months of the effective date of this final rule, that meet the requirements of sections 172(c) and 191-192 of the CAA and provide for Attainment of the NAAQS as expeditiously as practicable, but not later than 5 years from the effective date of this final rule.

In 2010, the EPA issued a notice of final rulemaking that revised the primary SO

NAAQS (75 FR 35520; June 22, 2010) after review of the existing primary SO

standards promulgated on April 30, 1971 (36 FR 8187). The EPA established the revised primary SO

NAAQS at 75 parts per billion (ppb) which is attained when the 3-year average of the annual 99th percentile of 1-hour daily maximum concentrations does not exceed 75 ppb.

The process for designating areas following promulgation of a new or revised NAAQS is contained in the CAA section 107(d) (42 U.S.C. 7407(d)). After promulgation of a new or revised NAAQS, each governor or tribal leader has an opportunity to recommend air quality designations, including the appropriate boundaries for Nonattainment areas, to the EPA. The EPA considers these recommendations as part of its duty to promulgate the formal area designations and boundaries for the new or revised NAAQS. By no later than 120 days prior to promulgating designations, the EPA is required to notify states, territories, and tribes, as appropriate, of any intended modifications to an area designation or boundary recommendation that the EPA deems necessary.

After invoking a 1-year extension of the deadlines to designate areas, as provided for in section 107 of the Act, the EPA completed an initial round of SO

designations for certain areas of the country on July 25, 2013 (referred to as “Round 1”).

Following the initial designations, three lawsuits were filed against the EPA in different U.S. District Courts, alleging the agency had failed to perform a nondiscretionary duty under the CAA by not designating all portions of the country by the June 2, 2013, deadline. In one of those cases, the U.S. District Court for the Northern District of California on March 2, 2015, entered an enforceable order for the EPA to complete the area designations by three specific deadlines according to the court-ordered schedule.

A total of 29 areas throughout the U.S. were designated in this action published on August 5, 2013 (78 FR 47191). The EPA designated all 29 areas Nonattainment based on violating monitored SO

concentrations from Federal Reference Method and Federal Equivalent Method monitors that are sited and operated in accordance with 40 CFR parts 50 and 58, and did not at that time designate any other areas.

To meet the first court-ordered deadline, additional areas were designated on June 30, 2016, and November 29, 2016 (collectively referred to as “Round 2”).

Pursuant to the court-ordered schedule,

the EPA must complete SO

designations for the remaining areas of the country by two specific deadlines: December 31, 2017, and December 31, 2020. This current third round of designations addresses all remaining undesignated areas except those where a state has installed and begun timely operating a new SO

monitoring network meeting EPA specifications referenced in EPA's SO

Data Requirements Rule.

A total of 65 areas throughout the U.S. were designated in these actions published on July 12, 2016 (81 FR 45039), and December 13, 2016 (81 FR 89870). Of these 65 areas, seven were designated Nonattainment.

Sierra Club

McCarthy,

No. 3-13-cv-3953 (SI) (N.D. Cal. Mar. 2, 2015).

40 CFR part 51, subpart BB (80 FR 51052; August 21, 2015).

On or about August 22, 2017, consistent with section 107(d)(1)(b)(ii) of the CAA, the EPA notified affected states, territories, and tribes of its intended designation of certain specific areas as either Nonattainment, Attainment/Unclassifiable, or Unclassifiable for the SO

NAAQS. These states then had the opportunity to demonstrate why they believed an intended modification of their updated recommendations by the EPA may be inappropriate. Although not required under the CAA, as the EPA had done for the first and second rounds of SO

designations, the EPA also chose to provide an opportunity for members of the public to comment on the EPA's August 2017 letters. The EPA published a notice of availability and public comment period for the intended designations on September 5, 2017 (82 FR 41903). The public comment period closed on October 5, 2017. The recommendations, the EPA's August 2017 letters, and the subsequent state and public comment letters, are in the docket for this third round of SO

designations at Docket ID No. EPA-HQ-OAR-2017-0003 and are available on the SO

designations website.

III. What is the 2010 SO2 NAAQS and what are the health concerns that it addresses?

The EPA revised the primary SO

NAAQS in a final rule published in the

Federal Register

on June 22, 2010 (75 FR 35520), which became effective on August 23, 2010. Based on review of the air quality criteria for oxides of sulfur and the primary NAAQS for oxides of sulfur as measured by SO

the EPA revised the primary SO

NAAQS to provide requisite protection of public health with an adequate margin of safety. Specifically, the EPA established a new 1-hour SO

standard at a level of 75 ppb, which is met at an ambient air quality monitoring site when the 3-year average of the annual 99th percentile of 1-hour daily maximum concentrations is less than or equal to 75 ppb, as determined in accordance with Appendix T of 40 CFR part 50. 40 CFR 50.17(a) and (b). The EPA also established provisions to revoke both the existing 24-hour and annual primary SO

standards, subject to certain conditions. 40 CFR 50.4(e).

Current scientific evidence links short-term exposures to SO

, ranging from 5 minutes to 24 hours, with an array of adverse respiratory effects including bronchoconstriction and increased asthma symptoms. These effects are particularly important for asthmatics at elevated ventilation rates (

e.g.,

while exercising or playing). Studies also show a connection between short-term exposure and increased visits to emergency departments and hospital admissions for respiratory illnesses, particularly in at-risk populations including children, the elderly and asthmatics.

IV. What are the CAA requirements for air quality designations and what action has the EPA taken to meet these requirements?

After the EPA promulgates a new or revised NAAQS, the EPA is required to designate all areas of the country as either “Nonattainment,” “Attainment,” or “Unclassifiable,” for that NAAQS pursuant to section 107(d)(1) of the CAA. As part of these Round 3 designations, the EPA is implementing its interpretation of statutory terms under CAA section 107(d) nationwide and is basing these designations on the EPA's nationwide analytical approach and technical analysis, including evaluation of monitoring data and air quality modeling, applied to the available evidence for each area.

Regarding statutory definitions and the EPA's interpretations of such, section 107(d)(1)(A)(i) of the CAA defines a Nonattainment area as an area that does not meet the NAAQS or that contributes to a nearby area that does not meet the NAAQS. An Attainment area is defined by the CAA as any area that meets the NAAQS and does not contribute to a nearby area that does not meet the NAAQS. Unclassifiable areas are defined by the CAA as those that cannot be classified on the basis of available information as meeting or not meeting the NAAQS.

For the purpose of this action for the 2010 SO

NAAQS, the EPA has interpreted and applied the statutory definitions as follows. The EPA defines a

Nonattainment

area as an area that the EPA has determined violates the 2010 SO

NAAQS or contributes to a violation in a nearby area, based on the most recent 3 years of air quality monitoring data, appropriate dispersion modeling analysis, and any other relevant information.

In this action, an

Attainment/Unclassifiable

area is defined by the EPA as an area that either: (1) Was not required to be characterized under 40 CFR 51.1203(c) or (d) for which available information does not indicate that the area violates the NAAQS or contributes to ambient air quality in a nearby area that does not meet the NAAQS; or (2) was required to be characterized under 40 CFR 51.1203(c) or (d) for which the EPA has determined the available information indicates the area meets the NAAQS and does not indicate the area contributes to ambient air quality in a nearby area that does not meet the NAAQS.

In this action, an

Unclassifiable area

is defined by the EPA as an area for which the available information does not allow the EPA to determine whether the area meets the definition of a Nonattainment area or the definition of an Attainment/Unclassifiable area.

This nationwide analytical approach also includes but is not limited to: (1) EPA's interpretations of other terms in the context of Round 3 of the 2010 SO

NAAQS; (2) the appropriate basis for characterizing the air quality of an area; (3) the five-factor analysis to determine the boundaries for each air quality area under the NAAQS; and (4) the methodology for appropriately characterizing SO

air quality through monitoring or modeling.

The EPA notes that CAA section 107(d) provides the agency with discretion to determine how best to interpret the terms in the definition of a Nonattainment area (

e.g.,

“contributes to” and “nearby”) for a new or revised NAAQS, given considerations such as the nature of a specific pollutant, the types of sources that may contribute to violations, the form of the standards for the pollutant, and other relevant information. In particular, the EPA's position is that the statute does not require the agency to establish bright line tests or thresholds for what constitutes “contribution” or “nearby” for purposes of designations.

This view was confirmed in

Catawba County

EPA,

571 F.3d 20 (D.C. Cir. 2009).

Similarly, the EPA's position is that the statute permits the EPA to evaluate the appropriate application of the term “area” to include geographic areas based upon full or partial county boundaries, as may be appropriate for a particular NAAQS. For example, CAA section 107(d)(1)(B)(ii) explicitly provides that the EPA can make modifications to designation recommendations for an area “or portions thereof,” and under CAA section 107(d)(1)(B)(iv) a designation remains in effect for an area “or portion thereof” until the EPA redesignates it.

By no later than 1 year after the promulgation of a new or revised NAAQS, CAA section 107(d)(1)(A) provides that each state governor is required to recommend air quality designations, including the appropriate boundaries for areas, to the EPA.

The EPA reviews those recommendations and is authorized to make any modifications the Administrator deems necessary. The statute does not define the term “necessary,” but the EPA interprets this to authorize the Administrator to modify designations that did not meet the statutory requirements or were otherwise inconsistent with the facts or analysis deemed appropriate by the Administrator. If the EPA is considering modifications to a recommendation, we are required by CAA section 107(d)(1)(B)(ii) to notify the state of any such intended modifications not less than 120 days prior to our promulgation of the final designation. These notifications are commonly known as the “120-day letters.” During this period, if the state or territory does not agree with the EPA's proposed modification, it has an opportunity to respond to the EPA and to demonstrate why it believes the modification proposed by the EPA is inappropriate. If a state or territory fails to provide any recommendation for an area, in whole or in part, the EPA still must promulgate a designation that the Administrator deems appropriate, pursuant to CAA section 107(d)(1)(B)(ii). While CAA section 107(d) specifically addresses the designations process between the EPA and states and territories, the EPA followed the same process to the extent practicable for tribes that submitted designation recommendations.

Tribes are invited to submit recommendations following promulgation of a new or revised NAAQS, but are not required to do so.

V. What guidance did the EPA issue and how did the EPA apply the statutory requirements and applicable guidance to determine area designations and boundaries?

In the notice of proposed rulemaking for the revised SO

NAAQS (74 FR 64810; December 8, 2009), the EPA issued proposed guidance on our approach to implementing the standard, including our approach to initial area designations. The EPA solicited comment on that guidance and, in the notice of final rulemaking (75 FR 35520; June 22, 2010), provided further guidance concerning implementation of the standard and how to identify Nonattainment areas and boundaries for the SO

NAAQS. Subsequently, on March 24, 2011, the EPA provided additional designations guidance to assist states with making their recommendations for area designations and boundaries.

That guidance recommended, among other things, that monitoring data from the most recent 3 consecutive years be used to identify a violation of the SO

NAAQS. This is appropriate because the form of the SO

NAAQS is calculated as a 3-year average of the 99th percentile of the yearly distribution of 1-hour daily maximum SO

concentrations (specifically the most recent 3 consecutive years). The EPA based the first round of final SO

designations in 2013 solely on violating monitored SO

concentrations for the years 2010-2012 from Federal Reference Method and Federal Equivalent Method monitors that are sited and operated in accordance with 40 CFR parts 50 and 58, and did not at that time designate any other areas.

See,

“Area Designations for the 2010 Revised Primary Sulfur Dioxide National Ambient Air Quality Standards,” memorandum to Regional Air Division Directors, Regions I-X, from Stephen D. Page, dated March 24, 2011.

In the March 24, 2011, guidance, the EPA stated that the perimeter of a county containing a violation would be the initial presumptive boundary for Nonattainment areas, but also stated that the state, tribe and/or the EPA could conduct additional area-specific analyses that could justify establishing either a larger or smaller area. The EPA indicated that the following factors should be considered in an analysis of whether to exclude portions of a county

and whether to include additional nearby areas outside the county as part of the designated Nonattainment area: (1) Air quality data; (2) emissions-related data; (3) meteorology; (4) geography/topography; and (5) jurisdictional boundaries, as well as other available data. States and tribes may identify and evaluate other relevant factors or circumstances specific to a particular area.

Following entry of the March 2, 2015, court order setting forth the schedule for the EPA to complete SO

designations, the EPA issued updated designations guidance.

This guidance superseded the March 24, 2011, designation guidance for the 2010 SO

NAAQS, and identified factors that the EPA intended to evaluate in determining whether areas are in violation of the 2010 SO

NAAQS or contribute to air quality in nearby areas that are in violation of the 2010 SO

NAAQS. The guidance also contained the factors the EPA intended to evaluate in determining the boundaries for all remaining areas in the country, consistent with the court's order and schedule. These factors include: (1) Air quality characterization via ambient monitoring or dispersion modeling results; (2) emissions-related data; (3) meteorology; (4) geography and topography; and (5) jurisdictional boundaries.

See,

“Updated Guidance for Area Designations for the 2010 Primary Sulfur Dioxide National Ambient Air Quality Standard,” memorandum to Regional Air Division Directors, Regions I-X, from Stephen D. Page, dated March 20, 2015.

The EPA supplemented this guidance with documents first made available to states and other interested parties in 2013 and updated in 2016.

See

NAAQS Designations Source-Oriented Monitoring Technical Assistance Document (February 2016), available at

https://www.epa.gov/sites/production/files/2016-06/documents/so2monitoringtad.pdf,

and SO

NAAQS Designations Modeling Technical Assistance Document (August 2016), available at

https://www.epa.gov/sites/production/files/2016-06/documents/so2modelingtad.pdf

On March 8, 2017, the EPA issued a memo to clarify what version of the AERMOD modeling system is the most appropriate for consideration by the agency in the SO

designations process.

See

“Clarification on the AERMOD Modeling System Version for Use in SO

Implementation Efforts and Other Regulatory Actions,” memorandum to EPA Regional Air Division Directors from Richard A. Wayland, dated March 8, 2017. This memo is available at

https://www3.epa.gov/ttn/scram/guidance/clarification/SO2_DRR_Designation_Modeling_Clarification_Memo-03082017.pdf

VI. What air quality information has the EPA used for these designations?

For designations for the SO

NAAQS, air agencies have the flexibility to characterize air quality using either appropriately sited ambient air quality monitors or modeling of actual or current allowable source emissions. These designations are based on the EPA's application of the nationwide analytical approach to, and technical assessment of, the weight of evidence for each area, including but not limited to available air quality monitoring data and air quality modeling results. The 1-hour primary SO

standard is violated at an ambient air quality monitoring site (or in the case of dispersion modeling, at an ambient air quality receptor location) when the 3-year average of the annual 99th percentile of the daily maximum 1-hour average concentrations exceeds 75 ppb, as determined in accordance with Appendix T of 40 CFR part 50. With respect to air quality monitoring data, the EPA has considered data from at least the most recent 3 calendar years,

i.e.,

2014-2016, as available. In most of the modeling runs available for EPA's review, the impacts of the actual emissions for one or more of the recent 3-year periods (

e.g.,

2012-2014, 2013-2015, 2014-2016) were considered, and in some cases the modeling was of currently effective limits on allowable emissions in lieu of or as a supplement to modeling of actual emissions.

The deadline for Round 3 designations and the practical difficulties of obtaining source emissions data for modeling, and complete, quality-assured, certified SO

monitoring data for the entirety of calendar year 2017 in December 2017, make the EPA's use of final 2017 emissions and monitoring data for this action generally impracticable. Under normal circumstances, the full year of such data would not be available to support regulatory determinations until after the end of the calendar year, and under the applicable regulations, the deadline for states to certify monitoring data is May 1, 2018. However, because these designations are being promulgated at the end of calendar year 2017, and because states can obtain source emissions information and make complete, quality-assured, certified 2017 data available for some areas quickly in 2018, in order to address the impracticability problem, the EPA is providing a process by which state-certified 2017 monitoring or emissions data that become available early in 2018 could be used in the designation process. We have provided that the final SO

designation decisions announced in this action will be effective on the date 90 days following the date of publication of this action in the

Federal Register

. If any state submits complete, quality-assured, certified 2017 data or related information about 2017 air quality to the EPA by February 28, 2018, supporting a change of the designation status for any area within that state, and the EPA agrees that a change of designation status is appropriate, then we will withdraw the designation announced in this action for such area and issue another designation that reflects the inclusion and analysis of such information. We emphasize that we will conduct this process only for those states that submit the information by the deadline of February 28, 2018, and in those instances where we can complete our analysis of the information and effect the change of designation status before the original effective date established by this final action.

If these submissions cause an area to change from Nonattainment to Attainment or Unclassifiable, the EPA will change the designation for the area following the process described in the preceding paragraph. If inclusion of 2017 data or related information about 2017 air quality indicates Nonattainment in an area that was designated Attainment or Unclassifiable, we will evaluate the reasons for the violation in the area and determine the appropriate course of action, which could include additional future action to change the designation for the area to Nonattainment.

VII. How do the Round 3 designations affect Indian country?

For areas of Indian country, there are no violating monitors. The Navajo Nation submitted modeling analyses for the areas around two SO

emission sources located in the Navajo Nation, the Navajo Generating Station and the Four Corners Power Plant, neither of which indicated a violation of the NAAQS. The Navajo Nation, the lands of the Hopi Tribe, and the Southern Ute Indian Reservation are being designated as separate areas. All other parts of Indian country are being designated as Attainment/Unclassifiable or Unclassifiable along with the surrounding state area. No areas of Indian country are being designated as Nonattainment in this round.

VIII. Where can I find information forming the basis for this rule and exchanges between the EPA, states and tribes related to this rule?

Information providing the basis for this final action are provided in a final technical support document (TSD)

included in the docket. The final TSD, intended designations TSD, modeling files, technical assistance documents, applicable EPA guidance memoranda, public comments, and copies of correspondence regarding this process between the EPA and the states, territories, tribes, and other parties, are available for review at the public docket for these SO

designations at

https://www.regulations.gov

under Docket ID No. EPA-HQ-OAR-2017-0003, at the EPA Docket Center listed above in the

ADDRESSES

section of this document and on the agency's SO

Designations website at

https://www.epa.gov/sulfur-dioxide-designations.

Area-specific questions can be addressed to the EPA Regional offices (

see

contact information provided at the beginning of this document).

The single final TSD for this action consists of a few sections with information that applies to all affected areas or to certain groups of areas with

some common features, and many sections that are specific to individual states, territories, or tribal areas. For convenience, the term “TSD” is also used generically to refer to these state/territory/tribe-specific sections. For informational purposes, these individual state/territory/tribe-specific sections/TSDs are available for separate downloading from the indicated EPA website.

IX. Environmental Justice Concerns

When the EPA establishes a new or revised NAAQS, the CAA requires the EPA to designate all areas of the U.S. as either Nonattainment, Attainment, or Unclassifiable. This action addresses designation determinations for certain areas for the 2010 SO

NAAQS. Area designations address environmental justice concerns by ensuring that the public is properly informed about the air quality in an area. In locations where air quality does not meet the NAAQS, the CAA requires relevant state authorities to initiate appropriate air quality management actions to ensure that all those residing, working, attending school, or otherwise present in those areas are protected, regardless of minority and economic status.

X. Statutory and Executive Order Reviews

A. Executive Order 12866: Regulatory Planning and Review and Executive Order 13563: Improving Regulation and Regulatory Review

This action is exempt from review by the Office of Management and Budget because it responds to the CAA requirement to promulgate air quality designations after promulgation of a new or revised NAAQS.

B. Executive Order 13771: Reducing Regulations and Controlling Regulatory Costs

This action is not an Executive Order 13771 regulatory action because actions such as air quality designations after promulgating a new revised NAAQS are exempt under Executive Order 12866.

C. Paperwork Reduction Act (PRA)

This action does not impose an information collection burden under the PRA. This action fulfills the non-discretionary duty for the EPA to promulgate air quality designations after promulgation of a new or revised NAAQS and does not contain any information collection activities.

D. Regulatory Flexibility Act (RFA)

This designation action under CAA section 107(d) is not subject to the RFA. The RFA applies only to rules subject to notice-and-comment rulemaking requirements under the APA, 5 U.S.C. 553, or any other statute. Section 107(d)(2)(B) of the CAA explicitly provides that designations are exempt from the notice-and-comment provisions of the APA. In addition, designations under CAA section 107(d) are not among the list of actions that are subject to the notice-and-comment rulemaking requirements of CAA section 307(d).

E. Unfunded Mandates Reform Act (UMRA)

This action does not contain any unfunded mandate as described in UMRA, 2 U.S.C. 1531-1538 and does not significantly or uniquely affect small governments. The action imposes no enforceable duty on any state, local, or tribal governments or the private sector.

F. Executive Order 13132: Federalism

This action does not have federalism implications. It will not have substantial direct effects on the states, on the relationship between the national government and the states, or on the distribution of power and responsibilities among the various levels of government. The division of responsibility between the federal government and the states for purposes of implementing the NAAQS is established under the CAA.

G. Executive Order 13175: Consultation and Coordination With Indian Tribal Government

This action does not have tribal implications, as specified in Executive Order 13175. This action concerns the designation of certain areas in the U.S. for the 2010 SO

NAAQS. The CAA provides for states, territories, and eligible tribes to develop plans to regulate emissions of air pollutants within their areas, as necessary, based on the designations. The Tribal Authority Rule (TAR) provides tribes the opportunity to apply for eligibility to develop and implement CAA programs, such as programs to attain and maintain the SO

NAAQS, but it leaves to the discretion of the tribe the decision of whether to apply to develop these programs and which programs, or appropriate elements of a program, the tribe will seek to adopt. This rule does not have a substantial direct effect on one or more Indian tribes. It would not create any additional requirements beyond those of the SO

NAAQS. This rule establishes the designations for certain areas of the country for the SO

NAAQS, but no areas of Indian country are being designated as Nonattainment by this action. Furthermore, this rule does not affect the relationship or distribution of power and responsibilities between the federal government and Indian tribes. The CAA and the TAR establish the relationship of the federal government and tribes in developing plans to attain the NAAQS, and this rule does nothing to modify that relationship. Thus, Executive Order 13175 does not apply.

Although Executive Order 13175 does not apply to this rule, after the EPA promulgated the 2010 primary SO

NAAQS, the EPA communicated with tribal leaders and environmental staff regarding the designations process. In 2011, the EPA also sent individualized letters to all federally recognized tribes to explain the designation process for the 2010 primary SO

NAAQS, to provide the EPA designations guidance, and to offer consultation with the EPA. The EPA provided further information to tribes through presentations at the National Tribal Forum and through participation in National Tribal Air Association conference calls. The EPA also sent individualized letters to all federally recognized tribes that submitted recommendations to the EPA about the EPA's intended Round 1 designations for the SO

standard and offered tribal leaders the opportunity for consultation.

These communications provided opportunities for tribes to voice concerns to the EPA about the general designations process for the 2010 SO

NAAQS, as well as concerns specific to a tribe, and informed the EPA about key tribal concerns regarding designations as the designations process was under development and through its implementation up to that point. For the second round of SO

designations, the EPA sent additional letters to tribes that could potentially be affected and offered

additional opportunities for participation in the designations process. For this third round of SO

designations, the EPA has sent similar letters to affected tribes.

These communication letters to the tribes are provided in the dockets for Round 1 (Docket ID No. EPA-HQ-OAR-2012-0233 and Round 2 (Docket ID No. EPA-HQ-OAR-2014-0464).

H. Executive Order 13045: Protection of Children From Environmental Health and Safety Risks

The EPA interprets Executive Order 13045 as applying to those regulatory actions that concern environmental health or safety risks that the EPA has reason to believe may disproportionately affect children, per the definition of “covered regulatory action” in section 2-202 of the Executive Order. This action is not subject to Executive Order 13045 because it does not establish an environmental standard intended to mitigate health or safety risks.

I. Executive Order 13211: Actions That Significantly Affect Energy Supply, Distribution or Use

This action is not subject to Executive Order 13211 because it is not a significant regulatory action under Executive Order 12866.

J. National Technology Transfer and Advancement Act (NTTAA)

This rulemaking does not involve technical standards.

K. Executive Order 12898: Federal Actions To Address Environmental Justice in Minority Populations and Low-Income Populations

The EPA believes that this action does not have disproportionately high and adverse human health or environmental effects on minority populations, low-income populations and/or indigenous peoples, as specified in Executive Order 12898 (59 FR 7629, February 16, 1994). The documentation for this determination is contained in Section IX of this preamble, “Environmental Justice Concerns.”

L. Congressional Review Act (CRA)

This action is subject to the CRA, and the EPA will submit a rule report to each House of the Congress and to the Comptroller General of the U.S. This action is not a “major rule” as defined by 5 U.S.C. 804(2).

M. Judicial Review

Section 307(b)(1) of the CAA indicates which Federal Courts of Appeal have venue for petitions of review of final actions by the EPA. This section provides, in part, that petitions for review must be filed in the Court of Appeals for the District of Columbia Circuit: (i) When the agency action consists of “nationally applicable regulations promulgated, or final actions taken, by the Administrator,” or (ii) when such action is locally or regionally applicable, if “such action is based on a determination of nationwide scope or effect and if in taking such action the Administrator finds and publishes that such action is based on such a determination.”

This final action to designate certain areas for the 2010 SO

NAAQS is “nationally applicable” within the meaning of section 307(b)(1). The final action establishes designations for areas across the U.S. for the 2010 SO

NAAQS. At the core of this action is the EPA's nationwide analytical approach and technical analysis, including evaluation of monitoring data and air quality modeling, applied to the available evidence for each area, including the EPA's interpretation of statutory terms in the CAA such as the definitions of Nonattainment, Attainment, and Unclassifiable under section 107(d)(1) of the CAA, and its application of that interpretation to areas across the country. Accordingly, the Administrator has determined that the final action is nationally applicable and is hereby publishing that finding in the

Federal Register

For the same reasons discussed above that make the final rule nationally applicable, the Administrator also has determined that the final designations are of nationwide scope and effect for the purposes of section 307(b)(1). This is particularly appropriate because, in the report on the 1977 Amendments that revised section 307(b)(1) of the CAA, Congress noted that the Administrator's determination that an action is of “nationwide scope or effect” would be appropriate for any action that has a scope or effect beyond a single judicial circuit. H.R. Rep. No. 95-294 at 323, 324,

reprinted

in 1977 U.S.C.C.A.N. 1402-03. Here, the scope and effect of the action will extend to numerous judicial circuits since the designations will apply to areas across the country. In these circumstances, section 307(b)(1) and its legislative history calls for the Administrator to find the action to be of “nationwide scope or effect” and for venue to be in the D.C. Circuit. Therefore, the Administrator has determined that the final action is based on a determination by the Administrator of nationwide scope or effect, and is hereby publishing that finding in the

Federal Register

List of Subjects in 40 CFR Part 81

Air pollution control, National parks, Wilderness areas.

Dated: December 21, 2017.

E. Scott Pruitt,

Administrator.

For the reasons set forth in the preamble, 40 CFR part 81 is amended as follows:

PART 81—DESIGNATIONS OF AREAS FOR AIR QUALITY PLANNING PURPOSES

1. The authority citation for part 81 continues to read as follows:

Authority:

42 U.S.C. 7401,

et seq.

Subpart C—Section 107 Attainment Status Designations

2. Section 81.301 is amended by adding a table titled “Alabama—2010 Sulfur Dioxide NAAQS (Primary)” following the table titled “Alabama—1971 Sulfur Dioxide NAAQS (Primary and Secondary)” to read as follows:

§ 81.301

Alabama.

Alabama—2010 Sulfur Dioxide NAAQS (Primary)

Designated area

Designation

Date

Type

Escambia County

Unclassifiable.

Mobile County

Unclassifiable.

Morgan County

Unclassifiable.

Pike County

Unclassifiable.

Shelby County

Unclassifiable.

Shelby County (part)

2016 US Census Block Groups 011170308001 and 011170308002

Washington County

Unclassifiable.

Rest of State:

Autauga County

Attainment/Unclassifiable.

Baldwin County

Attainment/Unclassifiable.

Barbour County

Attainment/Unclassifiable.

Bibb County

Attainment/Unclassifiable.

Blount County

Attainment/Unclassifiable.

Bullock County

Attainment/Unclassifiable.

Butler County

Attainment/Unclassifiable.

Calhoun County

Attainment/Unclassifiable.

Chambers County

Attainment/Unclassifiable.

Cherokee County

Attainment/Unclassifiable.

Chilton County

Attainment/Unclassifiable.

Choctaw County

Attainment/Unclassifiable.

Clarke County

Attainment/Unclassifiable.

Clay County

Attainment/Unclassifiable.

Cleburne County

Attainment/Unclassifiable.

Coffee County

Attainment/Unclassifiable.

Colbert County

Attainment/Unclassifiable.

Conecuh County

Attainment/Unclassifiable.

Coosa County

Attainment/Unclassifiable.

Covington County

Attainment/Unclassifiable.

Crenshaw County

Attainment/Unclassifiable.

Cullman County

Attainment/Unclassifiable.

Dale County

Attainment/Unclassifiable.

Dallas County

Attainment/Unclassifiable.

DeKalb County

Attainment/Unclassifiable.

Elmore County

Attainment/Unclassifiable.

Etowah County

Attainment/Unclassifiable.

Fayette County

Attainment/Unclassifiable.

Franklin County

Attainment/Unclassifiable.

Geneva County

Attainment/Unclassifiable.

Greene County

Attainment/Unclassifiable.

Hale County

Attainment/Unclassifiable.

Henry County

Attainment/Unclassifiable.

Houston County

Attainment/Unclassifiable.

Jackson County

Attainment/Unclassifiable.

Jefferson County

Attainment/Unclassifiable.

Lamar County

Attainment/Unclassifiable.

Lauderdale County

Attainment/Unclassifiable.

Lawrence County

Attainment/Unclassifiable.

Lee County

Attainment/Unclassifiable.

Limestone County

Attainment/Unclassifiable.

Lowndes County

Attainment/Unclassifiable.

Macon County

Attainment/Unclassifiable.

Madison County

Attainment/Unclassifiable.

Marengo County

Attainment/Unclassifiable.

Marion County

Attainment/Unclassifiable.

Marshall County

Attainment/Unclassifiable.

Monroe County

Attainment/Unclassifiable.

Montgomery County

Attainment/Unclassifiable.

Perry County

Attainment/Unclassifiable.

Pickens County

Attainment/Unclassifiable.

Randolph County

Attainment/Unclassifiable.

Russell County

Attainment/Unclassifiable.

St. Clair County

Attainment/Unclassifiable.

Sumter County

Attainment/Unclassifiable.

Talladega County

Attainment/Unclassifiable.

Tallapoosa County

Attainment/Unclassifiable.

Tuscaloosa County

Attainment/Unclassifiable.

Walker County

Attainment/Unclassifiable.

Wilcox County

Attainment/Unclassifiable.

Winston County

Attainment/Unclassifiable.

Includes any Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country.

This date is April 9, 2018, unless otherwise noted.

The remainder of Shelby County will be designated by December 31, 2020.

3. Section 81.302 is amended by adding a table titled “Alaska—2010 Sulfur Dioxide NAAQS (Primary)” following the table titled “Alaska—1971 Sulfur Dioxide NAAQS (Primary and Secondary)” to read as follows:

§ 81.302

Alaska.

Alaska—2010 Sulfur Dioxide NAAQS (Primary)

Designated area

Designation

Date

Type

Entire State

Attainment/Unclassifiable.

This date is April 9, 2018, unless otherwise noted.

4. Section 81.303 is amended by revising the table entitled “Arizona—2010 Sulfur Dioxide NAAQS (Primary)” to read as follows:

§ 81.303

Arizona.

Arizona—2010 Sulfur Dioxide NAAQS (Primary)

Designated area

Designation

Date

Type

Hayden, AZ

10-4-13

Nonattainment.

Gila County (part)

The portions of Gila County that are bounded by: T4S, R14E; T4S, R15E; T4S, R16E; T5S, R15E; T5S, R16E

Pinal County (part)

The portions of Pinal County that are bounded by: T4S, R14E; T4S, R15E; T4S, R16E; T5S, R14E; T5S, R15E; T5S, R16E; T6S, R14E; T6S, R15E; T6S, R16E

Miami, AZ

10-4-13

Nonattainment.

Gila County (part)

The portions of Gila County that are bounded by: T2N, R14E; T2N, R15E; T1N, R13E; T1N, R14E; T1N, R15E; T1S, R14E; T1S, R14 1/2E; T1S, R15E

Coconino County (part)

Unclassifiable.

The portions of Coconino County located within the Navajo Nation areas of Indian country within a 50-km radius of the Navajo Generating Station at the coordinates 39.904006 decimal degrees latitude and −111.389435 decimal degrees longitude, using the 1984 World Geodetic Survey datum.

Rest of State:

Apache County (part)

Attainment/Unclassifiable.

Cochise County

Attainment/Unclassifiable.

Coconino County (part)

Attainment/Unclassifiable.

Gila County (part)

Attainment/Unclassifiable.

Graham County

Attainment/Unclassifiable.

Greenlee County

Attainment/Unclassifiable.

Lands of the Hopi Tribe

Attainment/Unclassifiable.

La Paz County

Attainment/Unclassifiable.

Maricopa County

Attainment/Unclassifiable.

Mohave County

Attainment/Unclassifiable.

Navajo County (part)

Attainment/Unclassifiable.

Lands of the Navajo Nation (part)

Attainment/Unclassifiable.

Pima County

Attainment/Unclassifiable.

Pinal County (part)

Attainment/Unclassifiable.

Santa Cruz County

Attainment/Unclassifiable.

Yavapai County

Attainment/Unclassifiable.

Yuma County

Attainment/Unclassifiable.

Includes Indian country in each county or area, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country.

This date is April 9, 2018, unless otherwise noted.

Excludes Indian country located in each area, if any, unless otherwise specified.

Excludes lands of the White Mountain Apache Tribe.

Excludes lands of the Hopi Tribe and lands of the Navajo Nation.

Excludes the lands of the White Mountain Apache Tribe and the Hayden, AZ and Miami, AZ Nonattainment areas.

Includes all lands of the White Mountain Apache Tribe, including those lands of the White Mountain Apache Tribe geographically located in Apache County and Gila County, and excludes lands of the Hopi Tribe and lands of the Navajo Nation.

Includes all lands of the Navajo Nation except for the portions of the Navajo Nation lands designated Unclassifiable. Includes the lands of the Navajo Nation geographically located within the states of New Mexico and Utah.

Excludes the Hayden, AZ Nonattainment area.

5. Section 81.304 is amended by revising the table entitled “Arkansas—2010 Sulfur Dioxide NAAQS (Primary)” to read as follows:

§ 81.304

Arkansas.

Arkansas—2010 Sulfur Dioxide NAAQS (Primary)

Designated area

Designation

Date

Type

Independence County

9/12/16

Unclassifiable.

Arkansas County

Attainment/Unclassifiable.

Ashley County

Attainment/Unclassifiable.

Baxter County

Attainment/Unclassifiable.

Benton County

Attainment/Unclassifiable.

Boone County

Attainment/Unclassifiable.

Bradley County

Attainment/Unclassifiable.

Calhoun County

Attainment/Unclassifiable.

Carroll County

Attainment/Unclassifiable.

Chicot County

Attainment/Unclassifiable.

Clark County

Attainment/Unclassifiable.

Clay County

Attainment/Unclassifiable.

Cleburne County

Attainment/Unclassifiable.

Cleveland County

Attainment/Unclassifiable.

Columbia County

Attainment/Unclassifiable.

Conway County

Attainment/Unclassifiable.

Craighead County

Attainment/Unclassifiable.

Crawford County

Attainment/Unclassifiable.

Crittenden County

Attainment/Unclassifiable.

Cross County

Attainment/Unclassifiable.

Dallas County

Attainment/Unclassifiable.

Desha County

Attainment/Unclassifiable.

Drew County

Attainment/Unclassifiable.

Faulkner County

Attainment/Unclassifiable.

Franklin County

Attainment/Unclassifiable.

Fulton County

Attainment/Unclassifiable.

Garland County

Attainment/Unclassifiable.

Grant County

Attainment/Unclassifiable.

Greene County

Attainment/Unclassifiable.

Hempstead County

Attainment/Unclassifiable.

Hot Spring County

Attainment/Unclassifiable.

Howard County

Attainment/Unclassifiable.

Izard County

Attainment/Unclassifiable.

Jackson County

Attainment/Unclassifiable.

Jefferson County

9/12/16

Attainment/Unclassifiable.

Johnson County

Attainment/Unclassifiable.

Lafayette County

Attainment/Unclassifiable.

Lawrence County

Attainment/Unclassifiable.

Lee County

Attainment/Unclassifiable.

Lincoln County

Attainment/Unclassifiable.

Little River County

Attainment/Unclassifiable.

Logan County

Attainment/Unclassifiable.

Lonoke County

Attainment/Unclassifiable.

Madison County

Attainment/Unclassifiable.

Marion County

Attainment/Unclassifiable.

Miller County

Attainment/Unclassifiable.

Mississippi County

Attainment/Unclassifiable.

Monroe County

Attainment/Unclassifiable.

Montgomery County

Attainment/Unclassifiable.

Nevada County

Attainment/Unclassifiable.

Newton County

Attainment/Unclassifiable.

Ouachita County

Attainment/Unclassifiable.

Perry County

Attainment/Unclassifiable.

Phillips County

Attainment/Unclassifiable.

Pike County

Attainment/Unclassifiable.

Poinsett County

Attainment/Unclassifiable.

Polk County

Attainment/Unclassifiable.

Pope County

Attainment/Unclassifiable.

Prairie County

Attainment/Unclassifiable.

Pulaski County

Attainment/Unclassifiable.

Randolph County

Attainment/Unclassifiable.

St. Francis County

Attainment/Unclassifiable.

Saline County

Attainment/Unclassifiable.

Scott County

Attainment/Unclassifiable.

Searcy County

Attainment/Unclassifiable.

Sebastian County

Attainment/Unclassifiable.

Sevier County

Attainment/Unclassifiable.

Sharp County

Attainment/Unclassifiable.

Stone County

Attainment/Unclassifiable.

Union County

Attainment/Unclassifiable.

Van Buren County

Attainment/Unclassifiable.

Washington County

Attainment/Unclassifiable.

White County

Attainment/Unclassifiable.

Woodruff County

Attainment/Unclassifiable.

Yell County

Attainment/Unclassifiable.

This date is April 9, 2018, unless otherwise noted.

6. Section 81.305 is amended by adding a table titled “California—2010 Sulfur Dioxide NAAQS (Primary)” following the table “California—1971 Sulfur Dioxide NAAQS (Primary and Secondary)” to read as follows:

§ 81.305

California.

California—2010 Sulfur Dioxide NAAQS (Primary)

Designated area

Designation

Date

Type

Great Basin Valleys Air Basin

Attainment/Unclassifiable.

Alpine County

Inyo County

Mono County

Lake County Air Basin

Attainment/Unclassifiable.

Lake County

Lake Tahoe Air Basin

Attainment/Unclassifiable.

El Dorado County (part)

That portion of El Dorado County within the drainage area naturally tributary to Lake Tahoe including said Lake

Placer County (part)

That portion of Placer County within the drainage area naturally tributary to Lake Tahoe including said Lake, plus that area in the vicinity of the head of the Truckee River described as follows: Commencing at the point common to the aforementioned drainage area crestline and the line common to Townships 15 North and 16 North, M.D.B. & M., and following that line in a westerly direction to the northwest corner of Section 3, Township 15 North, Range 16 East, M.D.B. & M., thence south along the west line of Sections 3 and 10, Township 15 North, Range 16 East, M.D.B. & M., to the intersection with the said drainage area crestline, thence following the said drainage area boundary in a southeasterly direction, then northeasterly direction to and along the Lake Tahoe Dam, thence following the said drainage area crestline in a northeasterly, then northwesterly direction to the point of beginning

Mojave Desert Air Basin

Attainment/Unclassifiable.

Kern County (part)

That portion of Kern County east and south of a line described as follows: Beginning at the Kern-Los Angeles County boundary and running north and east along the northwest boundary of the Rancho La Libre Land Grant to the point of intersection with the range line common to R. 16 W. and R. 17 W., San Bernardino Base and Meridian; north along the range line to the point of intersection with the Rancho El Tejon Land Grant boundary; then southeast, northeast, and northwest along the boundary of the Rancho El Tejon Land Grantto the northwest corner of S. 3, T. 11 N., R. 17 W.; then west 1.2 miles; then north to the Rancho El Tejon Land Grant boundary; then northwest along the Rancho El Tejon line to the southeast corner of S. 34, T. 32 S., R. 30 E., Mount Diablo Base and Meridian; then north to the northwest corner of S. 35, T. 31 S., R. 30 E.; then northeast along the boundary of the Rancho El Tejon Land Grantto the southwest corner of S. 18, T. 31 S., R. 31 E.; then east to the southeast corner of S. 13, T. 31 S., R. 31 E.; then north along the range line common to R. 31 E. and R. 32 E., Mount Diablo Base and Meridian, to the northwest corner of S. 6, T. 29 S., R. 32 E.; then east to the southwest corner of S. 31 T. 28 S., R. 32E.; then north along the range line common to R. 31 E. and R. 32 E. to the northwest corner of S. 6, T. 28 S., R. 32 E., then west to the southeast corner of S. 36, T. 27 S., R. 31 E., then north along the range line common to R. 31 E. and R. 32 E. to the Kern-Tulare County boundary

Los Angeles County (part)

That portion of Los Angeles County which lies north and east of a line described as follows: Beginning at the Los Angeles-San Bernardino County boundary and running west along the township line common to T. 3 N and T. 2 N, San Bernardino Base and Meridian; then north along the range line common to R. 8 W and R. 9 W; then west along the township line common to T. 4 N and T. 3 N; then north along the range line common to R. 12 W and R. 13 W to the southeast corner of Section 12, T. 5 N, R. 13 W; then west along the south boundaries of Sections 12, 11, 10, 9, 8, 7, T. 5 N, R. 13 W to the boundary of the Angeles National Forest which is collinear with the range line common to R. 13 W and R. 14 W; then north and west along the Angeles National Forest boundary to the point of intersection with the township line common to T. 7 N and T. 6 N (point is at the northwest corner of Section 4 in T. 6 N, R. 14 W); then west along the township line common to T. 7 N and T. 6 N; then north along the range line common to R. 15 W and R. 16 W to the southeast corner of Section 13, T. 7 N, R. 16 W; then along the south boundaries of Sections 13, 14, 15, 16, 17, 18, T. 7 N, R. 16 W; then north along the range line common to R. 16 W and R. 17 W to the north boundary of the Angeles National Forest (collinear with township line common to T. 8 N and T. 7 N) then west and north along the Angeles National Forest boundary to the point of intersection with the south boundary of the Rancho La Liebre Land Grant; then west and north along this land grant boundary to the Los Angeles-Kern County boundary

Riverside County (part)

That portion of Riverside County which lies east of a line described as follows: That segment of the southwestern boundary line of Hydrologic Unit Number 18100100 within Riverside County, further described as follows: Beginning at the Riverside-Imperial County boundary and running north along the range line common to R. 17 E. and R. 16 E., San Bernardino Base and Meridian; then northwest along the ridge line of the Chuckwalla Mountains, through T. 8 S., R. 16 E. and T. 7 S., R. 16 E., until the Black Butte Mountain, elev. 4504′; then west and northwest along the ridge line to the southwest corner of T. 5 S., R. 14 E.; then north along the range line common to R. 14 E. and R. 13 E.; then west and northwest along the ridge line to Monument Mountain, elev. 4834′; then southwest and then northwest along the ridge line of the Little San Bernardino Mountains to Quail Mountain, elev. 5814′; then northwest along the ridge line to the Riverside-San Bernardino County line

San Bernardino County (part)

That portion of San Bernardino County east and north of a line described as follows: Beginning at the San Bernardino-Riverside County boundary and running north along the range line common to R. 3 E and R. 2 E, San Bernardino Base and Meridian; then west along the township line common to T. 3 N and T. 2 N to the San Bernardino-Los Angeles County boundary

Mountain Counties Air Basin

Attainment/Unclassifiable.

Amador County

Calaveras County

El Dorado County (part)

All of El Dorado County except that portion included in the Lake Tahoe Air Basin

Mariposa County

Nevada County

Placer County (part)

All of Placer County except that portion included in the Lake Tahoe Air Basin and that portion included in the Sacramento Valley Air Basin

Plumas County

Sierra County

Tuolumne County

North Central Air Basin

Attainment/Unclassifiable.

Monterey County

San Benito County

Santa Cruz County

North Coast Air Basin

Attainment/Unclassifiable.

Del Norte County

Humboldt County

Mendocino County

Sonoma County (part)

That portion of Sonoma County which lies north and west of a line described as follows: Beginning at the southeasterly corner of the Rancho Estero Americano, being on the boundary line between Marin and Sonoma Counties, California; thence running northerly along the easterly boundary line of said Rancho Estero Americano to the northeasterly corner thereof, being an angle corner in the westerly boundary line of Rancho Canada de Jonive; thence running along said boundary of Rancho Canada de Jonive westerly, northerly and easterly to its intersection with the easterly line of Graton Road; thence running along the easterly and southerly line of Graton Road, northerly and easterly to its intersection with the easterly line of Sullivan Road; thence running northerly along said easterly line of Sullivan Road to the southerly line of Green Valley Road; thence running easterly along the said southerly line of Green Valley Road and easterly along the southerly line of State Highway 116, to the westerly line of Vine Hill Road; thence running along the westerly and northerly line of Vine Hill Road, northerly and easterly to its intersection with the westerly line of Laguna Road; thence running northerly along the westerly line of Laguna Road and the northerly projection thereof to the northerly line of Trenton Road; thence running westerly along the northerly line of said Trenton Road to the easterly line of Trenton-Healdsburg Road; thence running northerly along said easterly line of Trenton-Healdsburg Road to the easterly line of Eastside Road; thence running northerly along said easterly line of Eastside Road to its intersection with the southerly line of Rancho Sotoyome; thence running easterly along said southerly line of Rancho Sotoyome to its intersection with the Township line common to Townships 8 and 9 North, M.D.M.; thence running easterly along said township line to its intersection with the boundary line between Sonoma and Napa Counties, State of California

Trinity County

Northeast Plateau Air Basin

Attainment/Unclassifiable.

Lassen County

Modoc County

Siskiyou County

Sacramento Valley Air Basin

Attainment/Unclassifiable.

Butte County

Colusa County

Glenn County

Placer County (part)

That portion of Placer County which lies west of Range 9 east, M.D.B. & M

Sacramento County

Shasta County

Solano County (part)

That portion of Solano County which lies north and east of a line described as follows: Beginning at the intersection of the westerly boundary of Solano County and the 1/4 section line running east and west through the center of Section 34, T6N, R2W, M.D.B. & M., thence east along said 1/4 section line to the east boundary of Section 36, T6N, R2W, thence south 1/2 mile and east 2.0 miles, more or less, along the west and south boundary of Los Putos Rancho to the northwest corner of Section 4, T5N, R1W, thence east along a line common to T5N and T6N to the northeast corner of Section 3, T5N, R1E, thence south along section lines to the southeast corner of Section 10, T3N, R1E, thence east along section lines to the south 1/4 corner of Section 8, T3N, R2E, thence east to the boundary between Solano and Sacramento Counties

Sutter County

Tehama County

Yolo County

Yuba County

Salton Sea Air Basin

Attainment/Unclassifiable.

Imperial County

Riverside County (part)

That portion of Riverside County which lies east of a line described as follows: Beginning at the Riverside-San Diego County boundary and running north along the range line common to R. 4 E and R. 3 E; then east along the township line common to T. 8 S and T. 7 S; then north along the range line common to R. 5 E and R. 4 E; then west along the township line common to T. 6 S and T. 7 S to the southwest corner of Section 34, T. 6 S, R. 4 E; then north along the west boundaries of Sections 34, 27, 22, 15, 10, 3, T. 6 S, R. 4 E; then west along the township line common to T. 5 S and T. 6 S; then north along the range line common to R. 4 E and R. 3 E; then west along the south boundaries of Sections 13, 14, 15, 16, 17 and 18, T. 5 S. R. 3 E; then north along the range line common to R. 2 E and R. 3 E to the Riverside-San Bernardino County line; and west of a line described as follows: That segment of the southwestern boundary line of Hydrologic Unit Number 18100100 within Riverside County, further described as follows: Beginning at the Riverside-Imperial County boundary and running north along the range line common to R. 17 E. and R. 16 E., San Bernardino Base and Meridian; then northwest along the ridge line of the Chuckwalla Mountains, through T. 8 S., R. 16 E. and T. 7 S., R. 16 E., until the Black Butte Mountain, elev. 4504′; then west and northwest along the ridge line to the southwest corner of T. 5 S., R. 14 E.; then north along the range line common to R. 14 E. and R. 13 E.; then west and northwest along the ridge line to Monument Mountain, elev. 4834′; then southwest and then northwest along the ridge line of the Little San Bernardino Mountains to Quail Mountain, elev. 5814′; then northwest along the ridge line to the Riverside-San Bernardino County line

San Diego Air Basin

Attainment/Unclassifiable.

San Diego County

San Francisco Bay Area Air Basin

Attainment/Unclassifiable.

Alameda County

Contra Costa County

Marin County

Napa County

San Francisco County

San Mateo County

Santa Clara County

Solano County (part)

That portion of Solano County which lies south and west of a line described as follows: Beginning at the intersection of the westerly boundary of Solano County and the 1/4 section line running east and west through the center of Section 34, T6N, R2W, M.D.B. & M., thence east along said 1/4 section line to the east boundary of Section 36, T6N, R2W, thence south 1/2 mile and east 2.0 miles, more or less, along the west and south boundary of Los Putos Rancho to the northwest corner of Section 4, T5N, R1W, thence east along a line common to T5N and T6N to the northeast corner of Section 3, T5N, R1E, thence south along section lines to the southeast corner of Section 10, T3N, R1E, thence east along section lines to the south 1/4 corner of Section 8, T3N, R2E, thence east to the boundary between Solano and Sacramento Counties

Sonoma County (part)

That portion of Sonoma County which lies south and east of a line described as follows: Beginning at the southeasterly corner of the Rancho Estero Americano, being on the boundary line between Marin and Sonoma Counties, California; thence running northerly along the easterly boundary line of said Rancho Estero Americano to the northeasterly corner thereof, being an angle corner in the westerly boundary line of Rancho Canada de Jonive; thence running along said boundary of Rancho Canada de Jonive westerly, northerly and easterly to its intersection with the easterly line of Graton Road; thence running along the easterly and southerly line of Graton Road, northerly and easterly to its intersection with the easterly line of Sullivan Road; thence running northerly along said easterly line of Sullivan Road to the southerly line of Green Valley Road; thence running easterly along the said southerly line of Green Valley Road and easterly along the southerly line of State Highway 116, to the westerly line of Vine Hill Road; thence running along the westerly and northerly line of Vine Hill Road, northerly and easterly to its intersection with the westerly line of Laguna Road; thence running northerly along the westerly line of Laguna Road and the northerly projection thereof to the northerly line of Trenton Road; thence running westerly along the northerly line of said Trenton Road to the easterly line of Trenton-Healdsburg Road; thence running northerly along said easterly line of Trenton-Healdsburg Road to the easterly line of Eastside Road; thence running northerly along said easterly line of Eastside Road to its intersection with the southerly line of Rancho Sotoyome; thence running easterly along said southerly line of Rancho Sotoyome to its intersection with the Township line common to Townships 8 and 9 North, M.D.M.; thence running easterly along said township line to its intersection with the boundary line between Sonoma and Napa Counties, State of California

San Joaquin Valley Air Basin

Attainment/Unclassifiable.

Fresno County

Kern County (part)

That portion of Kern County which lies west and north of a line described as follows: Beginning at the Kern-Los Angeles County boundary and running north and east along the northwest boundary of the Rancho La Libre Land Grant to the point of intersection with the range line common to R. 16 W. and R. 17 W., San Bernardino Base and Meridian; north along the range line to the point of intersection with the Rancho El Tejon Land Grant boundary; then southeast, northeast, and northwest along the boundary of the Rancho El Tejon Land Grant to the northwest corner of S. 3, T. 11 N., R. 17 W.; then west 1.2 miles; then north to the Rancho El Tejon Land Grant boundary; then northwest along the Rancho El Tejon line to the southeast corner of S. 34, T. 32 S., R. 30 E., Mount Diablo Base and Meridian; then north to the northwest corner of S. 35, T. 31 S., R. 30 E.; then northeast along the boundary of the Rancho El Tejon Land Grant to the southwest corner of S. 18, T. 31 S., R. 31 E.; then east to the southeast corner of S. 13, T. 31 S., R. 31 E.; then north along the range line common to R. 31 E. and R. 32 E., Mount Diablo Base and Meridian, to the northwest corner of S. 6, T. 29 S., R. 32 E.; then east to the southwest corner of S. 31, T. 28 S., R. 32 E.; then north along the range line common to R. 31 E. and R. 32 E. to the northwest corner of S. 6, T. 28 S., R. 32 E., then west to the southeast corner of S. 36, T. 27 S., R. 31 E., then north along the range line common to R. 31 E. and R. 32 E. to the Kern-Tulare County boundary

Kings County

Madera County

Merced County

San Joaquin County

Stanislaus County

Tulare County

South Central Air Basin

Attainment/Unclassifiable.

San Luis Obispo County

Santa Barbara County

Ventura County

South Coast Air Basin

Attainment/Unclassifiable.

Los Angeles County (part)

That portion of Los Angeles County which lies south and west of a line described as follows: Beginning at the Los Angeles-San Bernardino County boundary and running west along the township line common to T.3 N and T.2 N, San Bernardino Base and Meridian; then north along the range line common to R.8 W and R.9 W; then west along the township line common to T.4 N and T.3 N; then north along the range line common to R.12 W and R.13 W to the southeast corner of Section 12, T.5 N, R. 13 W; then west along the south boundaries of Sections 12, 11, 10, 9, 8, 7, T.5 N, R. 13 W to the boundary of the Angeles National Forest which is collinear with the range line common to R. 13 W and R. 14 W; then north and west along the Angeles National Forest boundary to the point of intersection with the township line common to T.7 N and T. 6 N (point is at the northwest corner of Section 4 in T.6 N, R. 14 W); then west along the township line common to T.7 N and T.6 N; then north along the range line common to R. 15 W and R. 16 W to the southeast corner of Section 13, T.7 N, R. 16 W; then along the south boundaries of Sections 13, 14, 15, 16, 17, 18, T.7 N, R. 16 W; then north along the range line common to R.16 W and R. 17 W to the north boundary of the Angeles National Forest (collinear with township line common to T.8 N and T.7 N); then west and north along the Angeles National Forest boundary to the point of intersection with the south boundary of the Rancho La Liebre Land Grant; then west and north along this land grant boundary to the Los Angeles-Kern County boundary

Orange County

Riverside County (part)

That portion of Riverside County which lies west of a line described as follows: Beginning at the Riverside-San Diego County boundary and running north along the range line common to R. 4 E and R. 3 E; then east along the township line common to T. 8 S and T. 7 S; then north along the range line common to R. 5 E and R. 4 E; then west along the township line common to T. 6 S and T. 7 S to the southwest corner of Section 34, T. 6 S, R. 4 E; then north along the west boundaries of Sections 34, 27, 22, 15, 10, 3, T. 6 S, R. 4 E; then west along the township line common to T. 5 S and T. 6 S; then north along the range line common to R. 4 E and R. 3 E; then west along the south boundaries of Sections 13, 14, 15, 16, 17 and 18, T. 5 S. R. 3 E; then north along the range line common to R. 2 E and R. 3 E to the Riverside-San Bernardino County line

San Bernardino County (part)

That portion of San Bernardino County west and south of a line described as follows: Beginning at the San Bernardino-Riverside County boundary and running north along the range line common to R. 3 E and R. 2 E; then west along the township line common to T. 3 N and T. 2 N to the San Bernardino-Los Angeles County boundary

This date is April 9, 2018, unless otherwise noted.

7. Section 81.306 is amended by revising the table entitled “Colorado—2010 Sulfur Dioxide NAAQS (Primary)” to read as follows:

§ 81.306

Colorado.

Colorado—2010 Sulfur Dioxide NAAQS (Primary)

Designated area

Designation

Date

Type

Colorado Springs, CO

9/12/16

Unclassifiable.

El Paso County (part)

Manitou Springs

Colorado Springs (and certain unincorporated areas) as follows; Areas east of the western city limits of Colorado Springs, north of the southern city limits of Colorado Springs with the addition of the area termed “Stratmoor” bounded on the south by South Academy Boulevard, west of Powers Blvd, and south of East Woodman Blvd (east of Academy Blvd. N) and the northern city limits of Colorado Springs (west of Academy Blvd. N).

Eastern Morgan County, CO

9/12/16

Unclassifiable.

Morgan County (part)

Circle with a 12-kilometer radius centered on the Pawnee Power Plant

State AQCR 01 (remainder)

Attainment/Unclassifiable.

Logan County

Morgan County (part) (remainder)

Phillips County

Sedgwick County

Washington County

Yuma County

State AQCR 02

Attainment/Unclassifiable.

Larimer County

Weld County

State AQCR 03

Attainment/Unclassifiable.

Adams County

Arapahoe County

Boulder County

Broomfield County

Clear Creek County

Denver County

Douglas County

Gilpin County

Jefferson County

State AQCR 04 (remainder)

Attainment/Unclassifiable.

El Paso County (part) (remainder)

Park County

Teller County

State AQCR 05

Attainment/Unclassifiable.

Cheyenne County

Elbert County

Kit Carson County

Lincoln County

State AQCR 06

Attainment/Unclassifiable.

Baca County

Bent County

Crowley County

Kiowa County

Otero County

Prowers County

State AQCR 07

Attainment/Unclassifiable.

Huerfano

Las Animas

Pueblo

State AQCR 08

Attainment/Unclassifiable.

Alamosa County

Conejos County

Costilla County

Mineral County

Rio Grande County

Saguache County

State AQCR 09

Attainment/Unclassifiable.

Archuleta County

Dolores

La Plata

Montezuma

San Juan

State AQCR 10

Attainment/Unclassifiable.

Delta County

Gunnison County

Hinsdale County

Montrose County

Ouray County

San Miguel County

State AQCR 11

Attainment/Unclassifiable.

Garfield County

Mesa County

Moffat County

Rio Blanco County

State AQCR 12

Attainment/Unclassifiable.

Eagle County

Grand County

Jackson County

Pitkin County

Routt County

Summit County

State AQCR 13

Attainment/Unclassifiable.

Chaffee County

Custer County

Fremont County

Lake County

Southern Ute Indian Reservation

Attainment/Unclassifiable.

Does not include the Southern Ute Indian Reservation, which is being designated separately.

This date is April 9, 2018, unless otherwise noted.

8. Section 81.307 is amended by adding a table entitled “Connecticut—2010 Sulfur Dioxide NAAQS (Primary)” following the table “Connecticut—1971 Sulfur Dioxide NAAQS (Primary and Secondary)” to read as follows:

§ 81.307

Connecticut.

Connecticut—2010 Sulfur Dioxide NAAQS (Primary)

Designated area

Designation

Date

Type

State of Connecticut

Attainment/Unclassifiable.

This date is April 9, 2018, unless otherwise noted.

9. Section 81.308 is amended by adding a new table entitled “Delaware—2010 Sulfur Dioxide NAAQS (Primary)” following the table “Delaware—1971 Sulfur Dioxide NAAQS (Primary and Secondary)” to read as follows:

§ 81.308

Delaware.

Delaware—2010 Sulfur Dioxide NAAQS (Primary)

Designated area

Designation

Date

Type

Entire State

Attainment/Unclassifiable.

This date is April 9, 2018, unless otherwise noted.

10. Section 81.309 is amended by adding a table titled “District of Columbia—2010 Sulfur Dioxide NAAQS (Primary)” following the table titled “District of Columbia—1971 Sulfur Dioxide NAAQS (Primary and Secondary)” to read as follows:

§ 81.309

District of Columbia.

District of Columbia—2010 Sulfur Dioxide NAAQS (Primary)

Designated area

Designation

Date

Type

District of Columbia

Attainment/Unclassifiable.

This date is April 9, 2018, unless otherwise noted.

11. Section 81.310 is amended by revising the table entitled “Florida—2010 Sulfur Dioxide NAAQS (Primary)” to read as follows:

§ 81.310

Florida.

Florida—2010 Sulfur Dioxide NAAQS (Primary)

Designated area

Designation

Date

Type

Hillsborough County, FL

10/4/13

Nonattainment.

Hillsborough County (part)

That portion of Hillsborough County encompassed by the polygon with the vertices using Universal Traverse Mercator (UTM) coordinates in UTM zone 17 with datum NAD83 as follows: (1) Vertices-UTM Easting (m) 358581, UTM Northing 3076066; (2) vertices-UTM Easting (m) 355673, UTM Northing 3079275; (3) UTM Easting (m) 360300, UTM Northing 3086380; (4) vertices-UTM Easting (m) 366850, UTM Northing 3086692; (5) vertices-UTM Easting (m) 368364, UTM Northing 3083760; and (6) vertices-UTM Easting (m) 365708, UTM Northing 3079121

Hillsborough—Polk County, FL

Nonattainment.

Hillsborough County (part)

Polk County (part)

That portion of Hillsborough and Polk Counties encompassed by the polygon with the vertices using Universal Traverse Mercator (UTM) coordinates in UTM zone 17 with datum NAD83 as follows: 390,500 E, 3,073,500 N; 390,500 E, 3,083,500 N; 400,500 E, 3,083,500 N; 400,500 E, 3,073,500 N

Nassau County, FL

10/4/13

Nonattainment.

Nassau County (part)

That portion of Nassau County encompassing the circular boundary with the center being UTM Easting 455530 meters, UTM Northing 3391737 meters, UTM zone 17, using the NAD83 datum (the location of the violating ambient monitor) and the radius being 2.4 kilometers

Citrus County, FL

Unclassifiable.

Citrus County (part)

Census Block Groups 4504004 and 4505002

Mulberry, FL Area

Unclassifiable.

Hillsborough County (part)

Polk County (part)

That portion of Hillsborough and Polk Counties encompassed by the polygon with the vertices using Universal Traverse Mercator (UTM) coordinates in UTM zone 17 with datum NAD83 starting with the Northwest Corner and proceeding to the Northeast as follows: 390,500 E, 3,083,500 N; 410,700 E, 3,091,600 N; 412,900 E, 3,089,800 N; 412,900 E, 3,084,600 N; 400,500 E, 3,073,500 N; 400,500 E, 3,083,500 N

Rest of State:

Alachua County

Attainment/Unclassifiable.

Baker County

Attainment/Unclassifiable.

Bay County

Attainment/Unclassifiable.

Bradford County

Attainment/Unclassifiable.

Brevard County

Attainment/Unclassifiable.

Broward County

Attainment/Unclassifiable.

Calhoun County

Attainment/Unclassifiable.

Charlotte County

Attainment/Unclassifiable.

Citrus County (part) (remainder)

Attainment/Unclassifiable.

Clay County

Attainment/Unclassifiable.

Collier County

Attainment/Unclassifiable.

Columbia County

Attainment/Unclassifiable.

DeSoto County

Attainment/Unclassifiable.

Dixie County

Attainment/Unclassifiable.

Duval County

Attainment/Unclassifiable.

Escambia County

Attainment/Unclassifiable.

Flagler County

Attainment/Unclassifiable.

Franklin County

Attainment/Unclassifiable.

Gadsden County

Attainment/Unclassifiable.

Gilchrist County

Attainment/Unclassifiable.

Glades County

Attainment/Unclassifiable.

Gulf County

Attainment/Unclassifiable.

Hamilton County

Attainment/Unclassifiable.

Hardee County

Attainment/Unclassifiable.

Hendry County

Attainment/Unclassifiable.

Hernando County

Attainment/Unclassifiable.

Highlands County

Attainment/Unclassifiable.

Hillsborough County (part) (remainder)

Attainment/Unclassifiable.

Holmes County

Attainment/Unclassifiable.

Indian River County

Attainment/Unclassifiable.

Jackson County

Attainment/Unclassifiable.

Jefferson County

Attainment/Unclassifiable.

Lafayette County

Attainment/Unclassifiable.

Lake County

Attainment/Unclassifiable.

Lee County

Attainment/Unclassifiable.

Leon County

Attainment/Unclassifiable.

Levy County

Attainment/Unclassifiable.

Liberty County

Attainment/Unclassifiable.

Madison County

Attainment/Unclassifiable.

Manatee County

Attainment/Unclassifiable.

Marion County

Attainment/Unclassifiable.

Martin County

Attainment/Unclassifiable.

Miami-Dade County

Attainment/Unclassifiable.

Monroe County

Attainment/Unclassifiable.

Nassau County (part) (remainder)

Attainment/Unclassifiable.

Okaloosa County

Attainment/Unclassifiable.

Okeechobee County

Attainment/Unclassifiable.

Orange County

Attainment/Unclassifiable.

Osceola County

Attainment/Unclassifiable.

Palm Beach County

Attainment/Unclassifiable.

Pasco County

Attainment/Unclassifiable.

Pinellas County

Attainment/Unclassifiable.

Polk County (part) (remainder)

Attainment/Unclassifiable.

Putnam County

Attainment/Unclassifiable.

St. Johns County

Attainment/Unclassifiable.

St. Lucie County

Attainment/Unclassifiable.

Santa Rosa County

Attainment/Unclassifiable.

Sarasota County

Attainment/Unclassifiable.

Seminole County

Attainment/Unclassifiable.

Sumter County

Attainment/Unclassifiable.

Suwannee County

Attainment/Unclassifiable.

Taylor County

Attainment/Unclassifiable.

Union County

Attainment/Unclassifiable.

Volusia County

Attainment/Unclassifiable.

Wakulla County

Attainment/Unclassifiable.

Walton County

Attainment/Unclassifiable.

Washington County

Attainment/Unclassifiable.

This date is April 9, 2018, unless otherwise noted.

Excludes Indian country located in each area, if any, unless otherwise specified.

12. Section 81.311 is amended by revising the table entitled “Georgia—2010 Sulfur Dioxide NAAQS (Primary)” to read as follows:

§ 81.311

Georgia.

Georgia—2010 Sulfur Dioxide NAAQS (Primary)

Designated area

Designation

Date

Type

Juliette, GA

9/12/16

Attainment/Unclassifiable.

Butts County

Crawford County

Jasper County

Jones County

Lamar County

Monroe County

Upson County

Rest of State:

Appling County

Attainment/Unclassifiable.

Atkinson County

Attainment/Unclassifiable.

Bacon County

Attainment/Unclassifiable.

Baker County

Attainment/Unclassifiable.

Baldwin County

Attainment/Unclassifiable.

Banks County

Attainment/Unclassifiable.

Barrow County

Attainment/Unclassifiable.

Bartow County

Attainment/Unclassifiable.

Ben Hill County

Attainment/Unclassifiable.

Berrien County

Attainment/Unclassifiable.

Bibb County

Attainment/Unclassifiable.

Bleckley County

Attainment/Unclassifiable.

Brantley County

Attainment/Unclassifiable.

Brooks County

Attainment/Unclassifiable.

Bryan County

Attainment/Unclassifiable.

Bulloch County

Attainment/Unclassifiable.

Burke County

Attainment/Unclassifiable.

Calhoun County

Attainment/Unclassifiable.

Camden County

Attainment/Unclassifiable.

Candler County

Attainment/Unclassifiable.

Carroll County

Attainment/Unclassifiable.

Catoosa County

Attainment/Unclassifiable.

Charlton County

Attainment/Unclassifiable.

Chatham County

Attainment/Unclassifiable.

Chattahoochee County

Attainment/Unclassifiable.

Chattooga County

Attainment/Unclassifiable.

Cherokee County

Attainment/Unclassifiable.

Clarke County

Attainment/Unclassifiable.

Clay County

Attainment/Unclassifiable.

Clayton County

Attainment/Unclassifiable.

Clinch County

Attainment/Unclassifiable.

Cobb County

Attainment/Unclassifiable.

Coffee County

Attainment/Unclassifiable.

Colquitt County

Attainment/Unclassifiable.

Columbia County

Attainment/Unclassifiable.

Cook County

Attainment/Unclassifiable.

Coweta County

Attainment/Unclassifiable.

Crisp County

Attainment/Unclassifiable.

Dade County

Attainment/Unclassifiable.

Dawson County

Attainment/Unclassifiable.

Decatur County

Attainment/Unclassifiable.

DeKalb County

Attainment/Unclassifiable.

Dodge County

Attainment/Unclassifiable.

Dooly County

Attainment/Unclassifiable.

Dougherty County

Attainment/Unclassifiable.

Douglas County

Attainment/Unclassifiable.

Early County

Attainment/Unclassifiable.

Echols County

Attainment/Unclassifiable.

Effingham County

Attainment/Unclassifiable.

Elbert County

Attainment/Unclassifiable.

Emanuel County

Attainment/Unclassifiable.

Evans County

Attainment/Unclassifiable.

Fannin County

Attainment/Unclassifiable.

Fayette County

Attainment/Unclassifiable.

Forsyth County

Attainment/Unclassifiable.

Franklin County

Attainment/Unclassifiable.

Fulton County

Attainment/Unclassifiable.

Gilmer County

Attainment/Unclassifiable.

Glascock County

Attainment/Unclassifiable.

Glynn County

Attainment/Unclassifiable.

Gordon County

Attainment/Unclassifiable.

Grady County

Attainment/Unclassifiable.

Greene County

Attainment/Unclassifiable.

Gwinnett County

Attainment/Unclassifiable.

Habersham County

Attainment/Unclassifiable.

Hall County

Attainment/Unclassifiable.

Hancock County

Attainment/Unclassifiable.

Harris County

Attainment/Unclassifiable.

Hart County

Attainment/Unclassifiable.

Heard County

Attainment/Unclassifiable.

Henry County

Attainment/Unclassifiable.

Houston County

Attainment/Unclassifiable.

Irwin County

Attainment/Unclassifiable.

Jackson County

Attainment/Unclassifiable.

Jeff Davis County

Attainment/Unclassifiable.

Jefferson County

Attainment/Unclassifiable.

Jenkins County

Attainment/Unclassifiable.

Johnson County

Attainment/Unclassifiable.

Lanier County

Attainment/Unclassifiable.

Laurens County

Attainment/Unclassifiable.

Lee County

Attainment/Unclassifiable.

Liberty County

Attainment/Unclassifiable.

Lincoln County

Attainment/Unclassifiable.

Long County

Attainment/Unclassifiable.

Lowndes County

Attainment/Unclassifiable.

Lumpkin County

Attainment/Unclassifiable.

Macon County

Attainment/Unclassifiable.

Madison County

Attainment/Unclassifiable.

Marion County

Attainment/Unclassifiable.

McDuffie County

Attainment/Unclassifiable.

McIntosh County

Attainment/Unclassifiable.

Miller County

Attainment/Unclassifiable.

Mitchell County

Attainment/Unclassifiable.

Montgomery County

Attainment/Unclassifiable.

Morgan County

Attainment/Unclassifiable.

Murray County

Attainment/Unclassifiable.

Muscogee County

Attainment/Unclassifiable.

Newton County

Attainment/Unclassifiable.

Oconee County

Attainment/Unclassifiable.

Oglethorpe County

Attainment/Unclassifiable.

Paulding County

Attainment/Unclassifiable.

Peach County

Attainment/Unclassifiable.

Pickens County

Attainment/Unclassifiable.

Pierce County

Attainment/Unclassifiable.

Pike County

Attainment/Unclassifiable.

Polk County

Attainment/Unclassifiable.

Pulaski County

Attainment/Unclassifiable.

Putnam County

Attainment/Unclassifiable.

Quitman County

Attainment/Unclassifiable.

Rabun County

Attainment/Unclassifiable.

Randolph County

Attainment/Unclassifiable.

Richmond County

Attainment/Unclassifiable.

Rockdale County

Attainment/Unclassifiable.

Schley County

Attainment/Unclassifiable.

Screven County

Attainment/Unclassifiable.

Seminole County

Attainment/Unclassifiable.

Spalding County

Attainment/Unclassifiable.

Stephens County

Attainment/Unclassifiable.

Stewart County

Attainment/Unclassifiable.

Sumter County

Attainment/Unclassifiable.

Talbot County

Attainment/Unclassifiable.

Taliaferro County

Attainment/Unclassifiable.

Tattnall County

Attainment/Unclassifiable.

Taylor County

Attainment/Unclassifiable.

Telfair County

Attainment/Unclassifiable.

Terrell County

Attainment/Unclassifiable.

Thomas County

Attainment/Unclassifiable.

Tift County

Attainment/Unclassifiable.

Toombs County

Attainment/Unclassifiable.

Towns County

Attainment/Unclassifiable.

Treutlen County

Attainment/Unclassifiable.

Troup County

Attainment/Unclassifiable.

Turner County

Attainment/Unclassifiable.

Twiggs County

Attainment/Unclassifiable.

Union County

Attainment/Unclassifiable.

Walker County

Attainment/Unclassifiable.

Walton County

Attainment/Unclassifiable.

Ware County

Attainment/Unclassifiable.

Warren County

Attainment/Unclassifiable.

Washington County

Attainment/Unclassifiable.

Wayne County

Attainment/Unclassifiable.

Webster County

Attainment/Unclassifiable.

Wheeler County

Attainment/Unclassifiable.

White County

Attainment/Unclassifiable.

Whitfield County

Attainment/Unclassifiable.

Wilcox County

Attainment/Unclassifiable.

Wilkes County

Attainment/Unclassifiable.

Wilkinson County

Attainment/Unclassifiable.

Worth County

Attainment/Unclassifiable.

This date is April 9, 2018, unless otherwise noted.

Floyd County will be designated by December 31, 2020.

13. Section 81.312 is amended by revising the table entitled “Hawaii—2010 Sulfur Dioxide NAAQS (Primary)” to read as follows:

§ 81.312

Hawaii.

Hawaii—2010 Sulfur Dioxide NAAQS (Primary)

Designated area

Designation

Date

Type

Hawaii County

9/12/16

Attainment/Unclassifiable.

Kalawao County

Attainment/Unclassifiable.

Kauai County

Attainment/Unclassifiable.

Maui County

Attainment/Unclassifiable.

This date is April 9, 2018, unless otherwise noted.

Honolulu County will be designated by December 31, 2020.

14. Section 81.313 is amended by adding a table entitled “Idaho—2010 Sulfur Dioxide NAAQS (Primary)” following the table “Idaho—1971 Sulfur Dioxide NAAQS (Primary and Secondary)” to read as follows:

§ 81.313

Idaho.

Idaho—2010 Sulfur Dioxide NAAQS (Primary)

Designated area

Designation

Date

Type

Entire State

Attainment/Unclassifiable.

This date is April 9, 2018, unless otherwise noted.

15. Section 81.314 is amended by revising the table entitled “Illinois—2010 Sulfur Dioxide NAAQS (Primary)” to read as follows:

§ 81.314

Illinois.

Illinois—2010 Sulfur Dioxide NAAQS (Primary)

Designated area

Designation

Date

Type

Alton Township, IL

9/12/16

Nonattainment.

Madison County (part)

Within Alton Township: Area east of Corporal Belchik Memorial Expressway, south of East Broadway, south of Route 3, and north of Route 143

Lemont, IL

10/4/13

Nonattainment.

Cook County (part)

Lemont Township

Will County (part)

DuPage Township and Lockport Township

Pekin, IL

10/4/13

Nonattainment.

Tazewell County (part)

Cincinnati Township and Pekin Township

Peoria County (part)

Hollis Township

Williamson County, IL

9/12/16

Nonattainment.

Williamson County

Jasper County, IL

9/12/16

Attainment/Unclassifiable.

Jasper County

Massac County, IL

9/12/16

Attainment/Unclassifiable.

Massac County

Putnam/Bureau Counties, IL

9/12/16

Attainment/Unclassifiable.

Bureau County

Putnam County

Wood River Township, IL

9/12/16

Attainment/Unclassifiable.

Madison County (part)

All of Wood River Township, and the area in Chouteau Township north of Cahokia Diversion Channel

Adams County

Attainment/Unclassifiable.

Alexander County

Attainment/Unclassifiable.

Bond County

Attainment/Unclassifiable.

Boone County

Attainment/Unclassifiable.

Brown County

Attainment/Unclassifiable.

Calhoun County

Attainment/Unclassifiable.

Carroll County

Attainment/Unclassifiable.

Cass County

Attainment/Unclassifiable.

Champaign County

Attainment/Unclassifiable.

Christian County

Attainment/Unclassifiable.

Clark County

Attainment/Unclassifiable.

Clay County

Attainment/Unclassifiable.

Clinton County

Attainment/Unclassifiable.

Coles County

Attainment/Unclassifiable.

Cook County (part) (remainder)

Attainment/Unclassifiable.

Crawford County

Attainment/Unclassifiable.

Cumberland County

Attainment/Unclassifiable.

De Kalb County

Attainment/Unclassifiable.

De Witt County

Attainment/Unclassifiable.

Douglas County

Attainment/Unclassifiable.

Du Page County

Attainment/Unclassifiable.

Edgar County

Attainment/Unclassifiable.

Edwards County

Attainment/Unclassifiable.

Effingham County

Attainment/Unclassifiable.

Fayette County

Attainment/Unclassifiable.

Ford County

Attainment/Unclassifiable.

Franklin County

Attainment/Unclassifiable.

Fulton County

Attainment/Unclassifiable.

Gallatin County

Attainment/Unclassifiable.

Greene County

Attainment/Unclassifiable.

Grundy County

Attainment/Unclassifiable.

Hamilton County

Attainment/Unclassifiable.

Hancock County

Attainment/Unclassifiable.

Hardin County

Attainment/Unclassifiable.

Henderson County

Attainment/Unclassifiable.

Henry County

Attainment/Unclassifiable.

Iroquois County

Attainment/Unclassifiable.

Jackson County

Attainment/Unclassifiable.

Jefferson County

Attainment/Unclassifiable.

Jersey County

Attainment/Unclassifiable.

Jo Daviess County

Attainment/Unclassifiable.

Johnson County

Attainment/Unclassifiable.

Kane County

Attainment/Unclassifiable.

Kankakee County

Attainment/Unclassifiable.

Kendall County

Attainment/Unclassifiable.

Knox County

Attainment/Unclassifiable.

Lake County

Attainment/Unclassifiable.

La Salle County

Attainment/Unclassifiable.

Lawrence County

Attainment/Unclassifiable.

Lee County

Attainment/Unclassifiable.

Livingston County

Attainment/Unclassifiable.

Logan County

Attainment/Unclassifiable.

McDonough County

Attainment/Unclassifiable.

McHenry County

Attainment/Unclassifiable.

McLean County

Attainment/Unclassifiable.

Macoupin County

Attainment/Unclassifiable.

Madison County (part) (remainder)

Attainment/Unclassifiable.

Marion County

Attainment/Unclassifiable.

Marshall County

Attainment/Unclassifiable.

Mason County

Attainment/Unclassifiable.

Menard County

Attainment/Unclassifiable.

Mercer County

Attainment/Unclassifiable.

Monroe County

Attainment/Unclassifiable.

Montgomery County

Attainment/Unclassifiable.

Morgan County

Attainment/Unclassifiable.

Moultrie County

Attainment/Unclassifiable.

Ogle County

Attainment/Unclassifiable.

Peoria County (part) (remainder)

Attainment/Unclassifiable.

Perry County

Attainment/Unclassifiable.

Piatt County

Attainment/Unclassifiable.

Pike County

Attainment/Unclassifiable.

Pope County

Attainment/Unclassifiable.

Pulaski County

Attainment/Unclassifiable.

Randolph County

Attainment/Unclassifiable.

Richland County

Attainment/Unclassifiable.

Rock Island County

Attainment/Unclassifiable.

St. Clair County

Attainment/Unclassifiable.

Saline County

Attainment/Unclassifiable.

Sangamon County

Attainment/Unclassifiable.

Schuyler County

Attainment/Unclassifiable.

Scott County

Attainment/Unclassifiable.

Shelby County

Attainment/Unclassifiable.

Stark County

Attainment/Unclassifiable.

Stephenson County

Attainment/Unclassifiable.

Tazewell County (part) (remainder)

Attainment/Unclassifiable.

Union County

Attainment/Unclassifiable.

Vermilion County

Attainment/Unclassifiable.

Wabash County

Attainment/Unclassifiable.

Warren County

Attainment/Unclassifiable.

Washington County

Attainment/Unclassifiable.

Wayne County

Attainment/Unclassifiable.

White County

Attainment/Unclassifiable.

Whiteside County

Attainment/Unclassifiable.

Will County (part) (remainder)

Attainment/Unclassifiable.

Winnebago County

Attainment/Unclassifiable.

Woodford County

Attainment/Unclassifiable.

This date is April 9, 2018, unless otherwise noted.

Macon County will be designated by December 31, 2020.

16. Section 81.315 is amended by revising the table entitled “Indiana—2010 Sulfur Dioxide NAAQS (Primary)” to read as follows:

§ 81.315

Indiana.

Indiana—2010 Sulfur Dioxide NAAQS (Primary)

Designated area

Designation

Date

Type

Huntington, IN

Nonattainment.

Huntington County (part)

Huntington Township

Indianapolis, IN

10/4/13

Nonattainment.

Marion County (part)

Wayne Township, Center Township, Perry Township

Morgan County, IN

10/4/13

Nonattainment.

Morgan County (part)

Clay Township, Washington Township

Southwest Indiana, IN

10/4/13

Nonattainment.

Daviess County (part)

Veale Township

Pike County (part)

Washington Township

Terre Haute, IN

10/4/13

Nonattainment.

Vigo County (part)

Fayette Township, Harrison Township

Gibson County, IN

9/12/16

Attainment/Unclassifiable.

Gibson County

Jefferson County, IN

9/12/16

Attainment/Unclassifiable.

Jefferson County (part)

Graham, Lancaster, Madison, Monroe, Republican, Shelby, and Smyrna Townships

LaPorte County, IN

9/12/16

Attainment/Unclassifiable

LaPorte County

Posey County, IN

9/12/16

Attainment/Unclassifiable.

Posey County (part)

Bethel, Center, Harmony, Lynn, Marrs, Robb, Robinson, and Smith Townships

Spencer County, IN

9/12/16

Attainment/Unclassifiable.

Spencer County (part)

Ohio Township north of UTM 4187.580 km northing, and Carter, Clay, Grass, Hammond, Harrison, and Jackson Townships

Adams County

Attainment/Unclassifiable.

Allen County

Attainment/Unclassifiable.

Bartholomew County

Attainment/Unclassifiable.

Benton County

Attainment/Unclassifiable.

Blackford County

Attainment/Unclassifiable.

Boone County

Attainment/Unclassifiable.

Brown County

Attainment/Unclassifiable.

Carroll County

Attainment/Unclassifiable.

Cass County

Attainment/Unclassifiable.

Clark County

Attainment/Unclassifiable.

Clay County

Attainment/Unclassifiable.

Clinton County

Attainment/Unclassifiable.

Crawford County

Attainment/Unclassifiable.

Daviess County (part) (remainder)

Attainment/Unclassifiable.

Dearborn County

Attainment/Unclassifiable.

Decatur County

Attainment/Unclassifiable.

DeKalb County

Attainment/Unclassifiable.

Delaware County

Attainment/Unclassifiable.

Dubois County

Attainment/Unclassifiable.

Elkhart County

Attainment/Unclassifiable.

Fayette County

Attainment/Unclassifiable.

Floyd County

Attainment/Unclassifiable.

Fountain County

Attainment/Unclassifiable.

Franklin County

Attainment/Unclassifiable.

Fulton County

Attainment/Unclassifiable.

Grant County

Attainment/Unclassifiable.

Greene County

Attainment/Unclassifiable.

Hamilton County

Attainment/Unclassifiable.

Hancock County

Attainment/Unclassifiable.

Harrison County

Attainment/Unclassifiable.

Hendricks County

Attainment/Unclassifiable.

Henry County

Attainment/Unclassifiable.

Howard County

Attainment/Unclassifiable.

Huntington County (part) (remainder)

Attainment/Unclassifiable.

Jackson County

Attainment/Unclassifiable.

Jasper County

Attainment/Unclassifiable.

Jay County

Attainment/Unclassifiable.

Jefferson County

Attainment/Unclassifiable.

Jennings County

Attainment/Unclassifiable.

Johnson County

Attainment/Unclassifiable.

Knox County

Attainment/Unclassifiable.

Kosciusko County

Attainment/Unclassifiable.

LaGrange County

Attainment/Unclassifiable.

Lake County

Attainment/Unclassifiable.

Lawrence County

Attainment/Unclassifiable.

Madison County

Attainment/Unclassifiable.

Marion County (part) (remainder)

Attainment/Unclassifiable.

Marshall County

Attainment/Unclassifiable.

Martin County

Attainment/Unclassifiable.

Miami County

Attainment/Unclassifiable.

Monroe County

Attainment/Unclassifiable.

Montgomery County

Attainment/Unclassifiable.

Morgan County (part) (remainder)

Attainment/Unclassifiable.

Newton County

Attainment/Unclassifiable.

Noble County

Attainment/Unclassifiable.

Ohio County

Attainment/Unclassifiable.

Orange County

Attainment/Unclassifiable.

Owen County

Attainment/Unclassifiable.

Parke County

Attainment/Unclassifiable.

Perry County

Attainment/Unclassifiable.

Pike County (part) (remainder)

Attainment/Unclassifiable.

Posey County

Attainment/Unclassifiable.

Pulaski County

Attainment/Unclassifiable.

Putnam County

Attainment/Unclassifiable.

Randolph County

Attainment/Unclassifiable.

Ripley County

Attainment/Unclassifiable.

Rush County

Attainment/Unclassifiable.

St. Joseph County

Attainment/Unclassifiable.

Scott County

Attainment/Unclassifiable.

Shelby County

Attainment/Unclassifiable.

Spencer County

Attainment/Unclassifiable.

Starke County

Attainment/Unclassifiable.

Steuben County

Attainment/Unclassifiable.

Sullivan County

Attainment/Unclassifiable.

Switzerland County

Attainment/Unclassifiable.

Tippecanoe County

Attainment/Unclassifiable.

Tipton County

Attainment/Unclassifiable.

Union County

Attainment/Unclassifiable.

Vanderburgh County

Attainment/Unclassifiable.

Vermillion County

Attainment/Unclassifiable.

Vigo County (part) (remainder)

Attainment/Unclassifiable.

Wabash County

Attainment/Unclassifiable.

Warren County

Attainment/Unclassifiable.

Warrick County

Attainment/Unclassifiable.

Washington County

Attainment/Unclassifiable.

Wayne County

Attainment/Unclassifiable.

Wells County

Attainment/Unclassifiable.

White County

Attainment/Unclassifiable.

Whitley County

Attainment/Unclassifiable.

This date is April 9, 2018, unless otherwise noted.

Porter County will be designated by December 31, 2020.

17. Section 81.316 is amended by revising the table entitled “Iowa—2010 Sulfur Dioxide NAAQS (Primary)” to read as follows:

§ 81.316

Iowa.

Iowa—2010 Sulfur Dioxide NAAQS (Primary)

Designated area

Designation

Date

Type

Muscatine, IA

10/4/13

Nonattainment.

Muscatine County (part)

Sections 1-3, 10-15, 22-27, 34-36 of T77N, R3W (Lake Township)

Sections 1-3, 10-15, 22-27, 34-36 of T76N, R3W (Seventy-six Township)

T77N, R2W (Bloomington Township)

T76N, R2W (Fruitland Township)

All sections except 1, 12, 13, 24, 25, 36 of T77N, R1W (Sweetland Township)

Linn County, IA

Unclassifiable.

Linn County

Woodbury County, IA

9/12/16

Unclassifiable.

Woodbury County

Des Moines County, IA

9/12/16

Attainment/Unclassifiable.

Des Moines County

Louisa County, IA

Attainment/Unclassifiable.

Louisa County

Pottawattamie County, IA

Attainment/Unclassifiable.

Pottawattamie County

Wapello County, IA

9/12/16

Attainment/Unclassifiable.

Wapello County

Statewide:

Attainment/Unclassifiable.

Adair County

Adams County

Allamakee County

Appanoose County

Audubon County

Benton County

Black Hawk County

Boone County

Bremer County

Buchanan County

Buena Vista County

Butler County

Calhoun County

Carroll County

Cass County

Cedar County

Cerro Gordo County

Cherokee County

Chickasaw County

Clarke County

Clay County

Clayton County

Clinton County

Crawford County

Dallas County

Davis County

Decatur County

Delaware County

Dickinson County

Dubuque County

Emmet County

Fayette County

Floyd County

Franklin County

Fremont County

Greene County

Grundy County

Guthrie County

Hamilton County

Hancock County

Hardin County

Harrison County

Henry County

Howard County

Humboldt County

Ida County

Iowa County

Jackson County

Jasper County

Jefferson County

Johnson County

Jones County

Keokuk County

Kossuth County

Lee County

Lucas County

Lyon County

Madison County

Mahaska County

Marion County

Marshall County

Mills County

Mitchell County

Monona County

Monroe County

Montgomery County

Muscatine County (portion of Muscatine County not designated Nonattainment on 10/4/13)

O'Brien County

Osceola County

Page County

Palo Alto County

Plymouth County

Pocahontas County

Polk County

Poweshiek County

Ringgold County

Sac County

Scott County

Shelby County

Sioux County

Story County

Tama County

Taylor County

Union County

Van Buren County

Warren County

Washington County

Wayne County

Webster County

Winnebago County

Winneshiek County

Worth County

Wright County

This date is April 9, 2018, unless otherwise noted.

18. Section 81.317 is amended by revising the table entitled “Kansas—2010 Sulfur Dioxide NAAQS (Primary)” to read as follows:

§ 81.317

Kansas.

Kansas—2010 Sulfur Dioxide NAAQS (Primary)

Designated area

Designation

Date

Type

Shawnee County, KS

9/12/16

Unclassifiable.

Shawnee County

Wyandotte County, KS

9/12/16

Unclassifiable.

Wyandotte County

Linn County, KS

9/12/16

Attainment/Unclassifiable.

Linn County

Statewide:

Attainment/Unclassifiable.

Allen County

Anderson County

Atchison County

Barber County

Barton County

Bourbon County

Brown County

Butler County

Chase County

Chautauqua County

Cherokee County

Cheyenne County

Clark County

Clay County

Cloud County

Coffey County

Comanche County

Cowley County

Crawford County

Decatur County

Dickinson County

Doniphan County

Douglas County

Edwards County

Elk County

Ellis County

Ellsworth County

Finney County

Ford County

Franklin County

Geary County

Gove County

Graham County

Grant County

Gray County

Greeley County

Greenwood County

Hamilton County

Harper County

Harvey County

Haskell County

Hodgeman County

Jackson County

Jefferson County

Jewell County

Johnson County

Kearny County

Kingman County

Kiowa County

Labette County

Lane County

Leavenworth County

Lincoln County

Logan County

Lyon County

Marion County

Marshall County

McPherson County

Meade County

Miami County

Mitchell County

Montgomery County

Morris County

Morton County

Nemaha County

Neosho County

Ness County

Norton County

Osage County

Osborne County

Ottawa County

Pawnee County

Phillips County

Pottawatomie County

Pratt County

Rawlins County

Reno County

Republic County

Rice County

Riley County

Rooks County

Rush County

Russell County

Saline County

Scott County

Sedgwick County

Seward County

Sheridan County

Sherman County

Smith County

Stafford County

Stanton County

Stevens County

Sumner County

Thomas County

Trego County

Wabaunsee County

Wallace County

Washington County

Wichita County

Wilson County

Woodson County

This date is April 9, 2018, unless otherwise noted.

19. Section 81.318 is amended by revising the table entitled “Kentucky—2010 Sulfur Dioxide NAAQS (Primary)” to read as follows:

§ 81.318

Kentucky.

Kentucky—2010 Sulfur Dioxide NAAQS (Primary)

Designated area

Designation

Date

Type

Campbell-Clermont Counties, KY-OH:

3/10/2017

Attainment.

Campbell County (part)

That portion of Campbell County which lies south and west of the Ohio River described as follows: Beginning at geographic coordinates 38.9735 North Latitude, 84.3017 West Longitude (NAD 1983) on the edge of the Ohio River running southwesterly to KY Highway 1566; thence continuing running southwesterly along KY Highway 1566 to KY Highway 9 (AA Highway); thence running northwesterly along KY Highway 9 (AA Highway) from Hwy 1566 to Interstate 275; thence running northeasterly along Interstate 275 to Highway 2345 (John's Hill Road), Hwy 2345 to US-27, US-27 to I-275, I-275 to the Ohio River; thence running southeasterly along the Ohio River from Interstate 275 to geographic coordinates 38.9735 North Latitude, 84.3017 West Longitude (NAD 1983).

Jefferson County, KY

10/4/13

Nonattainment.

Jefferson County (part)

That portion of Jefferson County compassed by the polygon with the vertices using Universal Traverse Mercator (UTM) coordinates in UTM zone 16 with datum NAD83 as follows:

(1) Ethan Allen Way extended to the Ohio River at UTM Easting (m) 595738, UTM Northing 4214086 and Dixie Highway (US60 and US31W) at UTM Easting (m) 59751, UTM Northing 4212946;

(2) Along Dixie Highway from UTM Easting (m) 597515, UTM Northing 4212946 to UTM Easting (m) 595859, UTM Northing 4210678;

(3) Near the adjacent property lines of Louisville Gas and Electric-Mill Creek Electric Generating Station and Kosmos Cement where they join Dixie Highway at UTM Easting (m) 595859, UTM Northing 4210678 and the Ohio River at UTM Easting (m) 595326, UTM Northing 4211014;

(4) Along the Ohio River from UTM Easting (m) 595326, UTM Northing 4211014 to UTM Easting (m) 595738, UTM Northing 4214086

Ohio County, KY

9/12/16

Unclassifiable.

Ohio County

Pulaski County, KY

9/12/16

Unclassifiable.

Pulaski County

Rest of State:

Adair County

Attainment/Unclassifiable.

Allen County

Attainment/Unclassifiable.

Anderson County

Attainment/Unclassifiable.

Ballard County

Attainment/Unclassifiable.

Barren County

Attainment/Unclassifiable.

Bath County

Attainment/Unclassifiable.

Bell County

Attainment/Unclassifiable.

Boone County

Attainment/Unclassifiable.

Bourbon County

Attainment/Unclassifiable.

Boyd County

Attainment/Unclassifiable.

Boyle County

Attainment/Unclassifiable.

Bracken County

Attainment/Unclassifiable.

Breathitt County

Attainment/Unclassifiable.

Breckinridge County

Attainment/Unclassifiable.

Bullitt County

Attainment/Unclassifiable.

Butler County

Attainment/Unclassifiable.

Caldwell County

Attainment/Unclassifiable.

Calloway County

Attainment/Unclassifiable.

Campbell County (part) (remainder)

Attainment/Unclassifiable.

Carlisle County

Attainment/Unclassifiable.

Carroll County

Attainment/Unclassifiable.

Carter County

Attainment/Unclassifiable.

Casey County

Attainment/Unclassifiable.

Christian County

Attainment/Unclassifiable.

Clark County

Attainment/Unclassifiable.

Clay County

Attainment/Unclassifiable.

Clinton County

Attainment/Unclassifiable.

Crittenden County

Attainment/Unclassifiable.

Cumberland County

Attainment/Unclassifiable.

Daviess County

Attainment/Unclassifiable.

Edmonson County

Attainment/Unclassifiable.

Elliott County

Attainment/Unclassifiable.

Estill County

Attainment/Unclassifiable.

Fayette County

Attainment/Unclassifiable.

Fleming County

Attainment/Unclassifiable.

Floyd County

Attainment/Unclassifiable.

Franklin County

Attainment/Unclassifiable.

Fulton County

Attainment/Unclassifiable.

Gallatin County

Attainment/Unclassifiable.

Garrard County

Attainment/Unclassifiable.

Grant County

Attainment/Unclassifiable.

Graves County

Attainment/Unclassifiable.

Grayson County

Attainment/Unclassifiable.

Green County

Attainment/Unclassifiable.

Greenup County

Attainment/Unclassifiable.

Hancock County

Attainment/Unclassifiable.

Hardin County

Attainment/Unclassifiable.

Harlan County

Attainment/Unclassifiable.

Harrison County

Attainment/Unclassifiable.

Hart County

Attainment/Unclassifiable.

Henderson County (part)

Attainment/Unclassifiable.

Census Block Groups 211010207013, 211010207014, 211010207024, and 211010208004

Henry County

Attainment/Unclassifiable.

Hickman County

Attainment/Unclassifiable.

Hopkins County

Attainment/Unclassifiable.

Jackson County

Attainment/Unclassifiable.

Jefferson County (part) (remainder)

Attainment/Unclassifiable.

Jessamine County

Attainment/Unclassifiable.

Johnson County

Attainment/Unclassifiable.

Kenton County

Attainment/Unclassifiable.

Knott County

Attainment/Unclassifiable.

Knox County

Attainment/Unclassifiable.

LaRue County

Attainment/Unclassifiable.

Laurel County

Attainment/Unclassifiable.

Lawrence County

Attainment/Unclassifiable.

Lee County

Attainment/Unclassifiable.

Leslie County

Attainment/Unclassifiable.

Letcher County

Attainment/Unclassifiable.

Lewis County

Attainment/Unclassifiable.

Lincoln County

Attainment/Unclassifiable.

Livingston County

Attainment/Unclassifiable.

Logan County

Attainment/Unclassifiable.

Lyon County

Attainment/Unclassifiable.

Madison County

Attainment/Unclassifiable.

Magoffin County

Attainment/Unclassifiable.

Marion County

Attainment/Unclassifiable.

Marshall County

Attainment/Unclassifiable.

Martin County

Attainment/Unclassifiable.

Mason County

Attainment/Unclassifiable.

McCracken County

Attainment/Unclassifiable.

McCreary County

Attainment/Unclassifiable.

McLean County

Attainment/Unclassifiable.

Meade County

Attainment/Unclassifiable.

Menifee County

Attainment/Unclassifiable.

Mercer County

Attainment/Unclassifiable.

Metcalfe County

Attainment/Unclassifiable.

Monroe County

Attainment/Unclassifiable.

Montgomery County

Attainment/Unclassifiable.

Morgan County

Attainment/Unclassifiable.

Muhlenberg County

Attainment/Unclassifiable.

Nelson County

Attainment/Unclassifiable.

Nicholas County

Attainment/Unclassifiable.

Oldham County

Attainment/Unclassifiable.

Owen County

Attainment/Unclassifiable.

Owsley County

Attainment/Unclassifiable.

Pendleton County

Attainment/Unclassifiable.

Perry County

Attainment/Unclassifiable.

Pike County

Attainment/Unclassifiable.

Powell County

Attainment/Unclassifiable.

Robertson County

Attainment/Unclassifiable.

Rockcastle County

Attainment/Unclassifiable.

Rowan County

Attainment/Unclassifiable.

Russell County

Attainment/Unclassifiable.

Scott County

Attainment/Unclassifiable.

Shelby County

Attainment/Unclassifiable.

Simpson County

Attainment/Unclassifiable.

Spencer County

Attainment/Unclassifiable.

Taylor County

Attainment/Unclassifiable.

Todd County

Attainment/Unclassifiable.

Trigg County

Attainment/Unclassifiable.

Trimble County

Attainment/Unclassifiable.

Union County

Attainment/Unclassifiable.

Warren County

Attainment/Unclassifiable.

Washington County

Attainment/Unclassifiable.

Wayne County

Attainment/Unclassifiable.

Whitley County

Attainment/Unclassifiable.

Wolfe County

Attainment/Unclassifiable.

Woodford County

Attainment/Unclassifiable.

This date is April 9, 2018, unless otherwise noted.

Excludes Indian country located in each area, if any, unless otherwise specified.

Includes any Indian country in each county or area, if any, unless otherwise specified. EPA is not determining the boundaries of any area of Indian country in this table, including any area of Indian country located in the larger designation area. The inclusion of any Indian country in the designation area is not a determination that the state has regulatory authority under the Clean Air Act for such Indian country.

Webster County and the remainder of Henderson County will be designated by December 31, 2020.

20. Section 81.319 is amended by revising the table entitled “Louisiana—2010 Sulfur Dioxide NAAQS (Primary)” to read as follows:

§ 81.319

Louisiana.

Louisiana—2010 Sulfur Dioxide NAAQS (Primary)

Designated area

Designation

Date

Type

Evangeline Parish (Partial)

Nonattainment.

Portion of Evangeline Parish bounded by:

570250m E, 3400300m N

570250m E, 3403300m N

572400m E, 3403300m N

572400m E, 3400300m N

NAD83 15R

St. Bernard Parish, LA

10/4/13

Nonattainment.

Calcasieu Parish, LA

9/12/16

Unclassifiable.

St. Mary Parish

Unclassifiable.

Acadia Parish

Attainment/Unclassifiable.

Allen Parish

Attainment/Unclassifiable.

Assumption Parish

Attainment/Unclassifiable.

Avoyelles Parish

Attainment/Unclassifiable.

Beauregard Parish

Attainment/Unclassifiable.

Bienville Parish

Attainment/Unclassifiable.

Bossier Parish

Attainment/Unclassifiable.

Caddo Parish

Attainment/Unclassifiable.

Caldwell Parish

Attainment/Unclassifiable.

Cameron Parish

Attainment/Unclassifiable.

Catahoula Parish

Attainment/Unclassifiable.

Claiborne Parish

Attainment/Unclassifiable.

Concordia Parish

Attainment/Unclassifiable.

De Soto Parish

9/12/16

Attainment/Unclassifiable.

East Carroll Parish

Attainment/Unclassifiable.

East Feliciana Parish

Attainment/Unclassifiable.

Evangeline Parish (part) (remainder)

Attainment/Unclassifiable.

Franklin Parish

Attainment/Unclassifiable.

Grant Parish

Attainment/Unclassifiable.

Iberia Parish

Attainment/Unclassifiable.

Iberville Parish

Attainment/Unclassifiable.

Jackson Parish

Attainment/Unclassifiable.

Jefferson Parish

Attainment/Unclassifiable.

Jefferson Davis Parish

Attainment/Unclassifiable.

Lafayette Parish

Attainment/Unclassifiable.

Lafourche Parish

Attainment/Unclassifiable.

LaSalle Parish

Attainment/Unclassifiable.

Lincoln Parish

Attainment/Unclassifiable.

Livingston Parish

Attainment/Unclassifiable.

Madison Parish

Attainment/Unclassifiable.

Morehouse Parish

Attainment/Unclassifiable.

Natchitoches Parish

Attainment/Unclassifiable.

Orleans Parish

Attainment/Unclassifiable.

Ouachita Parish

Attainment/Unclassifiable.

Plaquemines Parish

Attainment/Unclassifiable.

Point Coupee

Attainment/Unclassifiable.

Rapides Parish

Attainment/Unclassifiable.

Red River Parish

Attainment/Unclassifiable.

Richland Parish

Attainment/Unclassifiable.

Sabine Parish

Attainment/Unclassifiable.

St. Helena Parish

Attainment/Unclassifiable.

St. John the Baptist Parish

Attainment/Unclassifiable.

St. Landry Parish

Attainment/Unclassifiable.

St. Martin Parish

Attainment/Unclassifiable.

St. Mary Parish

Attainment/Unclassifiable.

St. Tammany Parish

Attainment/Unclassifiable.

Tangipahoa Parish

Attainment/Unclassifiable.

Tensas Parish

Attainment/Unclassifiable.

Terrebonne Parish

Attainment/Unclassifiable.

Union Parish

Attainment/Unclassifiable.

Vermilion Parish

Attainment/Unclassifiable.

Vernon Parish

Attainment/Unclassifiable.

Washington Parish

Attainment/Unclassifiable.

Webster Parish

Attainment/Unclassifiable.

West Carroll Parish

Attainment/Unclassifiable.

Winn Parish

Attainment/Unclassifiable.

This date is April 9, 2018, unless otherwise noted.

East Baton Rouge, St. Charles, St. James, and West Baton Rouge Parishes will be designated by December 31, 2020.

21. Section 81.320 is amended by adding a table entitled “Maine—2010 Sulfur Dioxide NAAQS (Primary)” following the table “Maine—1971 Sulfur Dioxide NAAQS (Primary and Secondary)” to read as follows:

§ 81.320

Maine.

Maine—2010 Sulfur Dioxide NAAQS (Primary)

Designated area

Designation

Date

Type

Statewide:

Attainment/Unclassifiable.

Androscoggin County

Aroostook County

Cumberland County

Franklin County

Hancock County

Kennebec County

Knox County

Lincoln County

Oxford County

Penobscot County

Piscataquis County

Sagadahoc County

Somerset County

Waldo County

Washington County

York County

This date is April 9, 2018, unless otherwise noted.

22. Section 81.321 is amended by revising the table entitled “Maryland—2010 Sulfur Dioxide NAAQS (Primary)” to read as follows:

§ 81.321

Maryland.

Maryland—2010 Sulfur Dioxide NAAQS (Primary)

Designated area

Designation

Date

Type

Anne Arundel County and Baltimore County, MD

9/12/16

Nonattainment.

Anne Arundel County (part)

Portions of Anne Arundel County that are within 26.8 kilometers of Herbert A. Wagner's Unit 3 stack, which is located at 39.17765 N. latitude, 76.52752 W. longitude

Baltimore County (part)

Portions of Baltimore County that are within 26.8 kilometers of Herbert A. Wagner's Unit 3 stack, which is located at 39.17765 N. latitude, 76.52752 W. longitude

Anne Arundel County (part)

Attainment/Unclassifiable.

Remainder of County

Baltimore City, MD

9/12/16

Attainment/Unclassifiable.

Baltimore County (part)

Attainment/Unclassifiable.

Remainder of County

Calvert County

Attainment/Unclassifiable.

Caroline County

Attainment/Unclassifiable.

Carroll County

Attainment/Unclassifiable.

Cecil County

Attainment/Unclassifiable.

Charles County

Attainment/Unclassifiable.

Dorchester County

Attainment/Unclassifiable.

Frederick County

Attainment/Unclassifiable.

Garrett County

Attainment/Unclassifiable.

Harford County

Attainment/Unclassifiable.

Howard County

Attainment/Unclassifiable.

Kent County

Attainment/Unclassifiable.

Montgomery County

Attainment/Unclassifiable.

Prince George's County

Attainment/Unclassifiable.

Queen Anne's County

Attainment/Unclassifiable.

Somerset County

Attainment/Unclassifiable.

St. Mary's County

Attainment/Unclassifiable.

Talbot County

Attainment/Unclassifiable.

Washington County

Attainment/Unclassifiable.

Wicomico County

Attainment/Unclassifiable.

Worcester County

Attainment/Unclassifiable.

This date is April 9, 2018, unless otherwise noted.

Allegany County will be designated by December 31, 2020.

23. Section 81.322 is amended by adding a table entitled “Massachusetts—2010 Sulfur Dioxide NAAQS (Primary)” following the table “Massachusetts—1971 Sulfur Dioxide NAAQS (Primary and Secondary)” to read as follows:

§ 81.322

Massachusetts.

Massachusetts—2010 Sulfur Dioxide NAAQS (Primary)

Designated area

Designation

Date

Type

Statewide:

Barnstable County

Attainment/Unclassifiable.

Berkshire County

Attainment/Unclassifiable.

Bristol County

Attainment/Unclassifiable.

Dukes County

Attainment/Unclassifiable.

Essex County

Attainment/Unclassifiable.

Franklin County

Attainment/Unclassifiable.

Hampden County

Attainment/Unclassifiable.

Hampshire County

Attainment/Unclassifiable.

Middlesex County

Attainment/Unclassifiable.

Nantucket County

Attainment/Unclassifiable.

Norfolk County

Attainment/Unclassifiable.

Plymouth County

Attainment/Unclassifiable.

Suffolk County

Attainment/Unclassifiable.

Worcester County

Attainment/Unclassifiable.

This date is April 9, 2018, unless otherwise noted.

24. Section 81.323 is amended by revising the table entitled “Michigan—2010 Sulfur Dioxide NAAQS (Primary)” to read as follows:

§ 81.323

Michigan.

Michigan—2010 Sulfur Dioxide NAAQS (Primary)

Designated area

Designation

Date

Type

Detroit, MI

10/4/13

Nonattainment.

Wayne County (part)

The area bounded on the east by the Michigan-Ontario border, on the south by the Wayne County-Monroe County border, on the west by Interstate 75 north to Southfield Road, Southfield Road to Interstate 94, and Interstate 94 north to Michigan Avenue, and on the north by Michigan Avenue to Woodward Avenue and a line on Woodward Avenue extended to the Michigan-Ontario border.

St. Clair, MI

9/12/16

Nonattainment.

St. Clair County (part)

Area defined by the St. Clair River for the eastern boundary, an extension from the St. Clair River straight west to the intersection of State Highway M-29 and St. Clair River Drive, continuing west on State Highway M-29 to Church Road to Arnold Road to County Line Road for the southern boundary, County Line Road and the Macomb/St. Clair County boundary to Stoddard Road to Wales Ridge Road for the western boundary, and Alpine Road to Fitz Road to Smith Creek Road to Range Road to Huron Avenue, extending straight east from the intersection of Huron Road and River Road to the St. Clair River for the northern boundary.

Bay County, MI

9/12/16

Attainment/Unclassifiable.

Bay County

Lansing, MI

9/12/16

Attainment/Unclassifiable.

Eaton County

Ingham County

Marquette County, MI

9/12/16

Attainment/Unclassifiable.

Marquette County

Monroe County, MI

9/12/16

Attainment/Unclassifiable.

Monroe County

Ottawa County, MI

9/12/16

Attainment/Unclassifiable.

Ottawa County

Alcona County

Attainment/Unclassifiable.

Alger County

Attainment/Unclassifiable.

Allegan County

Attainment/Unclassifiable.

Alpena County

Attainment/Unclassifiable.

Antrim County

Attainment/Unclassifiable.

Arenac County

Attainment/Unclassifiable.

Baraga County

Attainment/Unclassifiable.

Barry County

Attainment/Unclassifiable.

Benzie County

Attainment/Unclassifiable.

Berrien County

Attainment/Unclassifiable.

Branch County

Attainment/Unclassifiable.

Calhoun County

Attainment/Unclassifiable.

Cass County

Attainment/Unclassifiable.

Charlevoix County

Attainment/Unclassifiable.

Cheboygan County

Attainment/Unclassifiable.

Chippewa County

Attainment/Unclassifiable.

Clare County

Attainment/Unclassifiable.

Clinton County

Attainment/Unclassifiable.

Crawford County

Attainment/Unclassifiable.

Delta County

Attainment/Unclassifiable.

Dickinson County

Attainment/Unclassifiable.

Emmet County

Attainment/Unclassifiable.

Genesee County

Attainment/Unclassifiable.

Gladwin County

Attainment/Unclassifiable.

Gogebic County

Attainment/Unclassifiable.

Grand Traverse County

Attainment/Unclassifiable.

Gratiot County

Attainment/Unclassifiable.

Hillsdale County

Attainment/Unclassifiable.

Houghton County

Attainment/Unclassifiable.

Huron County

Attainment/Unclassifiable.

Ionia County

Attainment/Unclassifiable.

Iosco County

Attainment/Unclassifiable.

Iron County

Attainment/Unclassifiable.

Isabella County

Attainment/Unclassifiable.

Jackson County

Attainment/Unclassifiable.

Kalamazoo County

Attainment/Unclassifiable.

Kalkaska County

Attainment/Unclassifiable.

Kent County

Attainment/Unclassifiable.

Keweenaw County

Attainment/Unclassifiable.

Lake County

Attainment/Unclassifiable.

Lapeer County

Attainment/Unclassifiable.

Leelanau County

Attainment/Unclassifiable.

Lenawee County

Attainment/Unclassifiable.

Livingston County

Attainment/Unclassifiable.

Luce County

Attainment/Unclassifiable.

Mackinac County

Attainment/Unclassifiable.

Macomb County

Attainment/Unclassifiable.

Manistee County

Attainment/Unclassifiable.

Mason County

Attainment/Unclassifiable.

Mecosta County

Attainment/Unclassifiable.

Menominee County

Attainment/Unclassifiable.

Midland County

Attainment/Unclassifiable.

Missaukee County

Attainment/Unclassifiable.

Montcalm County

Attainment/Unclassifiable.

Montmorency County

Attainment/Unclassifiable.

Muskegon County

Attainment/Unclassifiable.

Newaygo County

Attainment/Unclassifiable.

Oakland County

Attainment/Unclassifiable.

Oceana County

Attainment/Unclassifiable.

Ogemaw County

Attainment/Unclassifiable.

Ontonagon County

Attainment/Unclassifiable.

Osceola County

Attainment/Unclassifiable.

Oscoda County

Attainment/Unclassifiable.

Otsego County

Attainment/Unclassifiable.

Presque Isle County

Attainment/Unclassifiable.

Roscommon County

Attainment/Unclassifiable.

Saginaw County

Attainment/Unclassifiable.

St. Clair County (remainder)

Attainment/Unclassifiable.

St. Joseph County

Attainment/Unclassifiable.

Sanilac County

Attainment/Unclassifiable.

Schoolcraft County

Attainment/Unclassifiable.

Shiawassee County

Attainment/Unclassifiable.

Tuscola County

Attainment/Unclassifiable.

Van Buren County

Attainment/Unclassifiable.

Washtenaw County

Attainment/Unclassifiable.

Wayne County (remainder)

Attainment/Unclassifiable.

Wexford County

Attainment/Unclassifiable.

This date is April 9, 2018, unless otherwise noted.

25. Section 81.324 is amended by adding a table entitled “Minnesota—2010 Sulfur Dioxide NAAQS (Primary)” following the table “Minnesota—1971 Sulfur Dioxide NAAQS (Primary and Secondary)” to read as follows:

§ 81.324

Minnesota.

Minnesota—2010 Sulfur Dioxide NAAQS (Primary)

Designated area

Designation

Date

Type

Goodhue County

Unclassifiable.

Aitkin County

Attainment/Unclassifiable.

Anoka County

Attainment/Unclassifiable.

Becker County

Attainment/Unclassifiable.

Beltrami County

Attainment/Unclassifiable.

Benton County

Attainment/Unclassifiable.

Big Stone County

Attainment/Unclassifiable.

Blue Earth County

Attainment/Unclassifiable.

Brown County

Attainment/Unclassifiable.

Carlton County

Attainment/Unclassifiable.

Carver County

Attainment/Unclassifiable.

Cass County

Attainment/Unclassifiable.

Chippewa County

Attainment/Unclassifiable.

Chisago County

Attainment/Unclassifiable.

Clay County

Attainment/Unclassifiable.

Clearwater County

Attainment/Unclassifiable.

Cook County

Attainment/Unclassifiable.

Cottonwood County

Attainment/Unclassifiable.

Crow Wing County

Attainment/Unclassifiable.

Dakota County

Attainment/Unclassifiable.

Dodge County

Attainment/Unclassifiable.

Douglas County

Attainment/Unclassifiable.

Faribault County

Attainment/Unclassifiable.

Fillmore County

Attainment/Unclassifiable.

Freeborn County

Attainment/Unclassifiable.

Grant County

Attainment/Unclassifiable.

Hennepin County

Attainment/Unclassifiable.

Houston County

Attainment/Unclassifiable.

Hubbard County

Attainment/Unclassifiable.

Isanti County

Attainment/Unclassifiable.

Itasca County

Attainment/Unclassifiable.

Jackson County

Attainment/Unclassifiable.

Kanabec County

Attainment/Unclassifiable.

Kandiyohi County

Attainment/Unclassifiable.

Kittson County

Attainment/Unclassifiable.

Koochiching County

Attainment/Unclassifiable.

Lac qui Parle County

Attainment/Unclassifiable.

Lake County

Attainment/Unclassifiable.

Lake of the Woods County

Attainment/Unclassifiable.

Le Sueur County

Attainment/Unclassifiable.

Lincoln County

Attainment/Unclassifiable.

Lyon County

Attainment/Unclassifiable.

McLeod County

Attainment/Unclassifiable.

Mahnomen County

Attainment/Unclassifiable.

Marshall County

Attainment/Unclassifiable.

Martin County

Attainment/Unclassifiable.

Meeker County

Attainment/Unclassifiable.

Mille Lacs County

Attainment/Unclassifiable.

Morrison County

Attainment/Unclassifiable.

Mower County

Attainment/Unclassifiable.

Murray County

Attainment/Unclassifiable.

Nicollet County

Attainment/Unclassifiable.

Nobles County

Attainment/Unclassifiable.

Norman County

Attainment/Unclassifiable.

Olmsted County

Attainment/Unclassifiable.

Otter Tail County

Attainment/Unclassifiable.

Pennington County

Attainment/Unclassifiable.

Pine County

Attainment/Unclassifiable.

Pipestone County

Attainment/Unclassifiable.

Polk County

Attainment/Unclassifiable.

Pope County

Attainment/Unclassifiable.

Ramsey County

Attainment/Unclassifiable.

Red Lake County

Attainment/Unclassifiable.

Redwood County

Attainment/Unclassifiable.

Renville County

Attainment/Unclassifiable.

Rice County

Attainment/Unclassifiable.

Rock County

Attainment/Unclassifiable.

Roseau County

Attainment/Unclassifiable.

St. Louis County

Attainment/Unclassifiable.

Scott County

Attainment/Unclassifiable.

Sherburne County

Attainment/Unclassifiable.

Sibley County

Attainment/Unclassifiable.

Stearns County

Attainment/Unclassifiable.

Steele County

Attainment/Unclassifiable.

Stevens County

Attainment/Unclassifiable.

Swift County

Attainment/Unclassifiable.

Todd County

Attainment/Unclassifiable.

Traverse County

Attainment/Unclassifiable.

Wabasha County

Attainment/Unclassifiable.

Wadena County

Attainment/Unclassifiable.

Waseca County

Attainment/Unclassifiable.

Washington County

Attainment/Unclassifiable.

Watonwan County

Attainment/Unclassifiable.

Wilkin County

Attainment/Unclassifiable.

Winona County

Attainment/Unclassifiable.

Wright County

Attainment/Unclassifiable.

Yellow Medicine County

Attainment/Unclassifiable.

This date is April 9, 2018, unless otherwise noted.

26. Section 81.325 is amended by revising the table entitled “Mississippi—2010 Sulfur Dioxide NAAQS (Primary)” to read as follows:

§ 81.325

Mississippi.

Mississippi—2010 Sulfur Dioxide NAAQS (Primary)

Designated area

Designation

Date

Type

Adams County

Attainment/Unclassifiable.

Alcorn County

Attainment/Unclassifiable.

Amite County

Attainment/Unclassifiable.

Attala County

Attainment/Unclassifiable.

Benton County

Attainment/Unclassifiable.

Bolivar County

Attainment/Unclassifiable.

Calhoun County

Attainment/Unclassifiable.

Carroll County

Attainment/Unclassifiable.

Chickasaw County

Attainment/Unclassifiable.

Choctaw County

Attainment/Unclassifiable.

Claiborne County

Attainment/Unclassifiable.

Clarke County

Attainment/Unclassifiable.

Clay County

Attainment/Unclassifiable.

Coahoma County

Attainment/Unclassifiable.

Copiah County

Attainment/Unclassifiable.

Covington County

Attainment/Unclassifiable.

DeSoto County

Attainment/Unclassifiable.

Forrest County

Attainment/Unclassifiable.

Franklin County

Attainment/Unclassifiable.

George County

Attainment/Unclassifiable.

Greene County

Attainment/Unclassifiable.

Grenada County

Attainment/Unclassifiable.

Hancock County

Attainment/Unclassifiable.

Harrison County

Attainment/Unclassifiable.

Hinds County

Attainment/Unclassifiable.

Holmes County

Attainment/Unclassifiable.

Humphreys County

Attainment/Unclassifiable.

Issaquena County

Attainment/Unclassifiable.

Itawamba County

Attainment/Unclassifiable.

Jackson County

Attainment/Unclassifiable.

Jasper County

Attainment/Unclassifiable.

Jefferson County

Attainment/Unclassifiable.

Jefferson Davis County

Attainment/Unclassifi

This text is long and has been trimmed here. Open the source document for the complete record.

This is a copy of a public record, reproduced as it was published. It is not legal advice, and it may not be the version a court would rely on. Check the official source before you cite it.