# Air Quality Designations for the 2010 Sulfur Dioxide (SO2) Primary National Ambient Air Quality Standard-Round 3 > Briefs, arguments, decisions, and more. URL: https://www.frixlaw.com/law-library/documents/fr%3A2017-28423 ## Record - **Collection:** Federal Register - **Document type:** Rule - **Published:** January 9, 2018 - **Citation:** 83 FR 1098 ## Text 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 2 ) 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 2 ) 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 2 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 2 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 2 designations rulemakings at: https://www.epa.gov/sulfur-dioxide-designations. The website includes the EPA's final SO 2 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 2 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 2 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 SO 2 Sulfur Dioxide SO X 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 2 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 2 NAAQS. As discussed in Section IV of this document, the EPA is designating SO 2 areas in multiple rounds. The EPA completed the first round of SO 2 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 2 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 2 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 2 NAAQS (75 FR 35520; June 22, 2010) after review of the existing primary SO 2 standards promulgated on April 30, 1971 (36 FR 8187). The EPA established the revised primary SO 2 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 2 designations for certain areas of the country on July 25, 2013 (referred to as “Round 1”). 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. 1 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 2 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”). 2 Pursuant to the court-ordered schedule, 3 the EPA must complete SO 2 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 2 monitoring network meeting EPA specifications referenced in EPA's SO 2 Data Requirements Rule. 4 2 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. 3 Sierra Club v. McCarthy, No. 3-13-cv-3953 (SI) (N.D. Cal. Mar. 2, 2015). 4 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 2 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 2 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 2 designations at Docket ID No. EPA-HQ-OAR-2017-0003 and are available on the SO 2 designations website. III. What is the 2010 SO2 NAAQS and what are the health concerns that it addresses? The EPA revised the primary SO 2 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 2, the EPA revised the primary SO 2 NAAQS to provide requisite protection of public health with an adequate margin of safety. Specifically, the EPA established a new 1-hour SO 2 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 2 standards, subject to certain conditions. 40 CFR 50.4(e). Current scientific evidence links short-term exposures to SO 2 , 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 2 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 2 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 2 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 2 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. 5 5 This view was confirmed in Catawba County v. 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. 6 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. 6 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 2 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 2 NAAQS. Subsequently, on March 24, 2011, the EPA provided additional designations guidance to assist states with making their recommendations for area designations and boundaries. 7 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 2 NAAQS. This is appropriate because the form of the SO 2 NAAQS is calculated as a 3-year average of the 99th percentile of the yearly distribution of 1-hour daily maximum SO 2 concentrations (specifically the most recent 3 consecutive years). The EPA based the first round of final SO 2 designations in 2013 solely on violating monitored SO 2 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. 7 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 2 designations, the EPA issued updated designations guidance. 8 This guidance superseded the March 24, 2011, designation guidance for the 2010 SO 2 NAAQS, and identified factors that the EPA intended to evaluate in determining whether areas are in violation of the 2010 SO 2 NAAQS or contribute to air quality in nearby areas that are in violation of the 2010 SO 2 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. 9 8 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. 9 The EPA supplemented this guidance with documents first made available to states and other interested parties in 2013 and updated in 2016. See SO 2 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 2 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 2 designations process. 10 10 See “Clarification on the AERMOD Modeling System Version for Use in SO 2 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 2 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 2 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 2 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 2 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 2 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) 11 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 2 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 2 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). 11 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 2 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 2 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 2 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 2 NAAQS. This rule establishes the designations for certain areas of the country for the SO 2 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 2 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 2 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 2 standard and offered tribal leaders the opportunity for consultation. 12 These communications provided opportunities for tribes to voice concerns to the EPA about the general designations process for the 2010 SO 2 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 2 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 2 designations, the EPA has sent similar letters to affected tribes. 12 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 2 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 2 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 1 Designation Date 2 Type Escambia County Unclassifiable. Mobile County Unclassifiable. Morgan County Unclassifiable. Pike County Unclassifiable. Shelby County Unclassifiable. Shelby County (part) 3 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. 1 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. 2 This date is April 9, 2018, unless otherwise noted. 3 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 1 Designation Date 2 Type Entire State Attainment/Unclassifiable. 1 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. 2 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 1 Designation Date 2 Type Hayden, AZ 3 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 3 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) 4 Attainment/Unclassifiable. Cochise County Attainment/Unclassifiable. Coconino County (part) 5 Attainment/Unclassifiable. Gila County (part) 6 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) 7 Attainment/Unclassifiable. Lands of the Navajo Nation (part) 8 Attainment/Unclassifiable. Pima County Attainment/Unclassifiable. Pinal County (part) 9 Attainment/Unclassifiable. Santa Cruz County Attainment/Unclassifiable. Yavapai County Attainment/Unclassifiable. Yuma County Attainment/Unclassifiable. 1 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. 2 This date is April 9, 2018, unless otherwise noted. 3 Excludes Indian country located in each area, if any, unless otherwise specified. 4 Excludes lands of the White Mountain Apache Tribe. 5 Excludes lands of the Hopi Tribe and lands of the Navajo Nation. 6 Excludes the lands of the White Mountain Apache Tribe and the Hayden, AZ and Miami, AZ Nonattainment areas. 7 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. 8 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. 9 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 1 Designation Date 2 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. 1 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. 2 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 1 Designation Date 2 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 1 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. 2 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 1 Designation Date 3 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 2 Dolores La Plata 2 Montezuma 2 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. 1 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. 2 Does not include the Southern Ute Indian Reservation, which is being designated separately. 3 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 1 Designation Date 2 Type State of Connecticut Attainment/Unclassifiable. 1 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. 2 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 1 Designation Date 2 Type Entire State Attainment/Unclassifiable. 1 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. 2 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 1 Designation Date 2 Type District of Columbia Attainment/Unclassifiable. 1 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. 2 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 1 Type Hillsborough County, FL 2 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 3 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 2 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 3 Unclassifiable. Citrus County (part) Census Block Groups 4504004 and 4505002 Mulberry, FL Area 3 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: 3 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. 1 This date is April 9, 2018, unless otherwise noted. 2 Excludes Indian country located in each area, if any, unless otherwise specified. 3 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. 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 1 3 Designation Date 2 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: 3 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. 1 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. 2 This date is April 9, 2018, unless otherwise noted. 3 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 1 3 Designation Date 2 Type Hawaii County 9/12/16 Attainment/Unclassifiable. Kalawao County Attainment/Unclassifiable. Kauai County Attainment/Unclassifiable. Maui County Attainment/Unclassifiable. 1 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. 2 This date is April 9, 2018, unless otherwise noted. 3 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 1 Designation Date 2 Type Entire State Attainment/Unclassifiable. 1 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. 2 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 1 3 Designation Date 2 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. 1 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. 2 This date is April 9, 2018, unless otherwise noted. 3 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 1 3 Designation Date 2 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. 1 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. 2 This date is April 9, 2018, unless otherwise noted. 3 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 1 Designation Date 2 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 1 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. 2 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 1 Designation Date 2 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 1 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. 2 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 4 Designation Date 1 Type Campbell-Clermont Counties, KY-OH: 2 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 2 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 2 9/12/16 Unclassifiable. Ohio County Pulaski County, KY 2 9/12/16 Unclassifiable. [Text truncated at 120,000 characters. The full text is on the page linked above.] --- Source: Frix Law Library, https://www.frixlaw.com/law-library/documents/fr%3A2017-28423. Public record. Not legal advice.