Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality Planning Purposes; State of North Carolina

ENVIRONMENTAL PROTECTION AGENCY

40 CFR Parts 52 and 81

[NC58-2-6082; FRL-4856-1]

Approval and Promulgation of Implementation Plans and Designation

of Areas for Air Quality Planning Purposes; State of North Carolina

AGENCY: Environmental Protection Agency (EPA).

ACTION: Final rule.

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SUMMARY: On November 13, 1992, the State of North Carolina, through the

North Carolina Department of Environment, Health, and Natural Resources

(NCDEHNR), submitted a maintenance plan and a request to redesignate

the Raleigh/Durham area (classified as a moderate nonattainment area)

from nonattainment to attainment for ozone (O3). The O3

nonattainment area includes the following counties: Durham, Wake, and

the Dutchville Township portion of Granville. Under the Clean Air Act,

designations can be changed if sufficient data are available to warrant

such changes. In this action, EPA is approving the State of North

Carolina's submittal because it meets the maintenance plan and

redesignation requirements. The approved maintenance plan will become a

federally enforceable part of the SIP for the Raleigh/Durham area.

On January 15, 1993, in a letter from Patrick Tobin to Governor

James Hunt, the EPA notified the State of North Carolina that the EPA

had made a finding of failure to submit required programs for the

nonattainment area. EPA's redesignation of the Raleigh/Durham area to

attainment abrogates those requirements for this area. Therefore, the

sanctions and federal implementation plan clocks begun by those

findings are stopped at the time of the redesignation.

EFFECTIVE DATE: This final rule will be effective June 17, 1994, unless

notice is received by May 18, 1994, that someone wishes to submit

adverse or critical comments. If the effective date is delayed, timely

notice will be published in the Federal Register.

ADDRESSES: Written comments should be sent to Bill Eckert at the EPA

address in Atlanta, Georgia listed below. Copies of the redesignation

request and the State of North Carolina's submittal are available for

public review during normal business hours at the addresses listed

below. EPA's technical support document (TSD) is available for public

review during normal business hours at the EPA addresses listed below.

Air and Radiation Docket and Information Center (Air Docket 6102), U.S.

Environmental Protection Agency, 401 M Street SW., Washington, DC 20460

Environmental Protection Agency, Region IV, Air Programs Branch, 345

Courtland Street NE., Atlanta, GA 30365

North Carolina Department of Environment, Health, and Natural

Resources, Division of Environmental Management, 512 North Salisbury

Street, Raleigh, NC 27604

FOR FURTHER INFORMATION CONTACT: Bill Eckert of the EPA Region IV Air

Programs Branch at (404) 347-2864 and at the Region IV address.

SUPPLEMENTARY INFORMATION: On November 15, 1990, the Clean Air Act

Amendments of 1990 (CAA) were enacted. (Pub. L. 101-549, 104 Stat.

2399, codified at 42 U.S.C. 7401-7671q.) Under section 107(d)(1), in

conjunction with the Governor of North Carolina, EPA designated the

Raleigh/Durham area as nonattainment because the area violated the

O3 standard during the period from 1987 through 1989. Furthermore,

upon designation, the Raleigh/Durham area was classified as moderate

under section 181(a)(1). (See 56 FR 56694 (November 6, 1991) and 57 FR

56762 (November 30, 1992), codified at 40 CFR 81.334.)

The Raleigh/Durham area more recently has ambient monitoring data

that show no violations of the O3 National Ambient Air Quality

Standards (NAAQS), during the period from 1989 through 1992. Therefore,

in an effort to comply with the CAA and to ensure continued attainment

of the NAAQS, on November 13, 1992, the State of North Carolina

submitted for parallel processing an O3 maintenance SIP for the

Raleigh/Durham area and requested redesignation of the area to

attainment with respect to the O3 NAAQS. On January 13, 1993, the

NCDEHNR submitted evidence that a public hearing was held on the

maintenance plan and on July 8, 1993, the maintenance plan became State

effective. In addition, there have been no violations reported for the

1993 O3 season.

On August 11, 1993, Region IV determined that the information

received from the NCDEHNR constituted a complete redesignation request

under the general completeness criteria of 40 CFR part 51, appendix V,

sections 2.1 and 2.2. However, for purposes of determining what

requirements are applicable for redesignation purposes, EPA believes it

is necessary to identify when NCDEHNR first submitted a redesignation

request that meets the completeness criteria. EPA noted in a previous

policy memorandum that parallel processing requests for submittals

under the CAA, including redesignation submittals, would not be

determined complete. See the memorandum entitled ``State Implementation

Plan (SIP) Actions Submitted in Response to Clean Air Act (Act)

Deadlines'' from John Calcagni to Air Programs Division Directors,

Regions I-X, dated October 28, 1992 (Memorandum). The rationale for

this conclusion was that the parallel processing exception to the

completeness criteria (40 CFR part 51, appendix V, section 2.3) was not

intended to extend statutory due dates for mandatory submittals. (See

Memorandum at 3-4.) However, since requests for redesignation are not

mandatory submittals under the CAA, EPA believes that it must change

its policy with respect to redesignation submittals to conform to the

existing completeness criteria. Therefore, EPA believes, the parallel

processing exception to the completeness criteria may be applied to

redesignation request submittals, at least until such time as the EPA

decides to revise that exception. NCDEHNR submitted a redesignation

request on November 13, 1992. In the November 13 submittal, NCDEHNR

submitted the maintenance plan, thereby including the final element to

make the November 13, 1992, request for parallel processing complete

under the parallel processing exception to the completeness criteria.

When the maintenance plan became state effective on July 8, 1993, the

State of North Carolina no longer needed parallel processing for the

redesignation request and maintenance plan. Therefore, the EPA informed

the State of North Carolina on August 11, 1993, that the redesignation

request and maintenance plan submittals were complete under the general

completeness criteria.

The North Carolina redesignation request for the Raleigh/Durham

area meets the five requirements of section 107(d)(3)(E) for

redesignation to attainment. The following is a brief description of

how the State of North Carolina has fulfilled each of these

requirements. Because the maintenance plan is a critical element of the

redesignation request, EPA will discuss its evaluation of the

maintenance plan under its analysis of the redesignation request.

1. The Area Must Have Attained the O3 NAAQS

The State of North Carolina's request is based on an analysis of

quality assured ambient air quality monitoring data which is relevant

to the maintenance plan and to the redesignation request. Most recent

ambient air quality monitoring data for calendar year 1989 through

calendar year 1992 show an expected exceedence rate of less than 1.0

per year of the O3 NAAQS in the Raleigh/Durham area. (See 40 CFR

50.9 and appendix H.) Because the Raleigh/Durham area has complete

quality-assured data showing no violations of the standard over the

most recent consecutive three calendar year period, the Raleigh/Durham

area has met the first statutory criterion of attainment of the O3

NAAQS. In addition, there were no violations reported for the 1993

O3 season. The State of North Carolina has committed to continue

monitoring in this area in accordance with 40 CFR part 58.

2. The Area Has Met All Applicable Requirements Under Section 110

and Part D of the Act

On April 17, 1980, and on September 10, 1980, EPA fully approved

North Carolina's SIP as meeting the requirements of section 110(a)(2)

and part D of the 1977 CAA (45 FR 26038 and 45 FR 59578). The amended

CAA, however, revised section 110(a)(2) and, under part D, revised

section 172 and added new requirements for all nonattainment areas.

Therefore, for purposes of redesignation, to meet the requirement that

the SIP contain all applicable requirements under the CAA, EPA reviewed

the North Carolina SIP to ensure that it contained all measures due

under the amended CAA prior to or at the time the State of North

Carolina submitted its redesignation request.

A. Section 110 Requirements

Although section 110 was amended, the Raleigh/Durham area SIP meets

the requirements of amended section 110(a)(2). A number of the

requirements did not change in substance and, therefore, EPA believes

that the pre-amendment SIP met these requirements. As to those

requirements that were amended, see 57 FR 27936 and 57 FR 27939 (June

23, 1992), many are duplicative of other requirements of the CAA. EPA

has analyzed the SIP and determined that it is consistent with the

requirements of amended section 110(a)(2).

B. Part D Requirements

Before the Raleigh/Durham area may be redesignated to attainment,

it also must have fulfilled the applicable requirements of part D.

Under part D, an area's classification indicates the requirements to

which it will be subject. Subpart 1 of part D sets forth the basic

nonattainment requirements applicable to all nonattainment areas,

classified as well as nonclassifiable. Subpart 2 of part D establishes

additional requirements for O3 nonattainment areas classified

under table 1 of section 181(a). The Raleigh/Durham area is classified

as moderate (See 56 FR 56694, codified at 40 CFR 81.334). The State of

North Carolina submitted their request for redesignation of the

Raleigh/Durham area prior to November 15, 1992. Therefore, in order to

be redesignated to attainment, the State of North Carolina must meet

the applicable requirements of subpart 1 of part D, specifically

sections 172(c) and 176, and the requirements of subpart 2 of part D,

which became due on or before November 13, 1992, the date the State

submitted a complete redesignation request.

B1. Subpart 1 of Part D--Section 172

Section 172(c) sets forth general requirements applicable to all

nonattainment areas. Under section 172(b), the section 172(c)

requirements are applicable as determined by the Administrator but no

later than three years after an area is designated as nonattainment.

EPA had not determined that these requirements were applicable to

classified O3 nonattainment areas on or before November 13, 1992,

the date that the State of North Carolina submitted a complete

redesignation request for the Raleigh/Durham area. Therefore, the State

of North Carolina was not required to meet these requirements for

purposes of redesignation.

Upon redesignation of this area to attainment, the Prevention of

Significant Deterioration (PSD) provisions contained in part C of title

I are applicable. On December 30, 1976, and on February 23, 1982, the

EPA approved the State of North Carolina's PSD program (41 FR 56805 and

47 FR 78376).

B2. Subpart 1 of Part D--Section 176 Conformity Plan Provisions

Section 176 of the CAA requires States to develop transportation/

air quality conformity procedures which are consistent with federal

conformity regulations. Section 176 provides that EPA must develop

federal conformity regulations, requiring states to submit these

procedures as a SIP revision by November 15, 1992. EPA promulgated

final conformity regulations on November 24, 1993 (transportation

conformity) and November 30, 1993 (general conformity). Since it was

impossible to establish a SIP revision date of November 15, 1992, in

these regulations, EPA established a regulatory submittal date of one

year after promulgation of the conformity regulations. The State of

North Carolina has committed in their maintenance plan to revise the

SIP to be consistent with the final federal regulations. In addition,

the State Air Quality Section will work closely with the State

Department of Transportation (DOT) and local transportation agencies to

assure that Transportation Improvement Programs (TIPs) in the

maintenance areas are consistent with and conform to the SIP and meet

federal requirements on conformity. This review process is being

extended to include all major projects regardless of source of funding,

as well as all federally funded projects. A complete description of the

conformity review process is included in the TSD prepared for this

notice.

B3. Subpart 2 of Part D

Under section 182(a)(2)(A) areas that retained a designation of

nonattainment for O3 under the amended CAA and that are classified

as marginal or above were required to fix their pre-amendment VOC RACT

SIPs. North Carolina was not required to submit VOC RACT fixups for

purposes of redesignating the Raleigh/Durham area because the Raleigh/

Durham area was not nonattainment before the 1990 amendments to the

CAA.

Under section 182(b), several requirements were due for moderate

O3 nonattainment areas on November 15, 1992, such as VOC RACT

catch-ups, Gasoline Vapor Recovery, New Source Review, and Emission

Statements. North Carolina failed to submit these measures for the

Raleigh/Durham area. On January 15, 1993, EPA made a finding of failure

to submit these measures by letter from Patrick M. Tobin, Acting

Regional Administrator, to James B. Hunt, Jr., Governor of North

Carolina. However these requirements are not applicable for purposes of

considering the State's redesignation request. For purposes of

redesignation, EPA must consider whether the State has met all

requirements that were applicable prior to the time the state submitted

the redesignation request. Since North Carolina submitted the

redesignation request for Raleigh/Durham on November 13, 1992, these

measures are not relevant for purposes of redesignation. Therefore, all

subpart 2 requirements that were applicable at the time the State

submitted its redesignation request have been met.

3. The Area Has a Fully Approved SIP Under Section 110(k) of the

CAA

Based on the approval of provisions under the pre-amended CAA and

EPA's prior approval of SIP revisions under the amended CAA, EPA has

determined that the Raleigh/Durham area has a fully approved SIP under

section 110(k), which also meets the applicable requirements of section

110 and part D as discussed above.

4. The Air Quality Improvement Must Be Permanent and Enforceable

Several control measures have come into place since the Raleigh/

Durham area violated the O3 NAAQS. Of these control measures, two

control measures produced the most significant decreases in VOC and

NOX emissions. One control measure is a reduction of fuel

volatility, as measured by the Reid Vapor Pressure (RVP), from 10.1 psi

in 1988 to 9.0 psi in 1990 and then to 7.8 psi in the summer of 1992.

As a result of the RVP reductions, there has been a reduction of

emissions of VOCs of more than 25% from 1988 to 1992 from gasoline

powered vehicles of all classes. The other control measure is the

improvement in tailpipe emissions associated with the Federal Motor

Vehicle Control Program (FMVCP). This program reduces VOC and NOX

emissions as newer, cleaner vehicles replace older, high emitting

vehicles. VOC emissions reductions are 20.9% from 1988 to 1990 and

NOX emissions reductions are 2.7% from 1988 to 1990.

In association with its emission inventory discussed below, the

State of North Carolina has demonstrated that actual enforceable

emission reductions are responsible for the recent air quality

improvement and that the VOC emissions in the base year are not

artificially low due to local economic downturn.

5. The Area Must Have a Fully Approved Maintenance Plan Pursuant to

Section 175A of the Act

Section 175A of the CAA sets forth the elements of a maintenance

plan for areas seeking redesignation from nonattainment to attainment.

The plan must demonstrate continued attainment of the applicable NAAQS

for at least ten years after the Administrator approves a redesignation

to attainment. Eight years after the redesignation, the state must

submit a revised maintenance plan which demonstrates attainment for the

ten years following the initial ten-year period. To provide for the

possibility of future NAAQS violations, the maintenance plan must

contain contingency measures, with a schedule for implementation,

adequate to assure prompt correction of any air quality problems.

In this notice, EPA is approving the State of North Carolina's

maintenance plan for the Raleigh/Durham area because EPA finds that the

State of North Carolina's submittal meets the requirements of section

175A.

A. Emissions Inventory--Base Year Inventory

On November 13, 1992, the State of North Carolina submitted

comprehensive inventories of VOC, NOX, and CO emissions from the

Raleigh/Durham area. The inventories included biogenic, area,

stationary, and mobile sources using 1990 as the base year for

calculations to demonstrate maintenance. The 1990 inventory is

considered representative of attainment conditions because the NAAQS

was not violated during 1990. The 1990 Base Year Emission Inventory for

the Raleigh/Durham area has been submitted to EPA in SIP Air Pollutant

Inventory Management Subsystem (SAMS) format.

The State of North Carolina submittal contains the detailed

inventory data and summaries by county and source category. This

comprehensive base year emissions inventory was submitted in the SAMS

format. Finally, this inventory was prepared in accordance with EPA

guidance. A summary of the base year and projected maintenance year

inventories are shown in the following three tables. Refer to the TSD

prepared for this notice for more in-depth details regarding the base

year inventory for the Raleigh/Durham area.

VOC Emission Inventory Summary

[Tons per day]

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1990 1993 1996 1999 2002 2004

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Point............................................... 12.46 10.05 10.15 10.57 11.03 10.67

Area................................................ 164.50 162.68 164.10 165.37 167.86 169.74

Mobile.............................................. 85.03 65.37 68.40 72.70 76.39 79.18

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Total......................................... 261.99 238.10 242.65 248.64 255.28 259.59

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NOX Emission Inventory Summary

[Tons per day]

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1990 1993 1996 1999 2002 2004

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Point............................................... 3.55 3.74 3.93 4.15 4.28 4.39

Area................................................ 0.18 0.18 0.18 0.18 0.18 0.18

Mobile.............................................. 89.22 78.86 83.60 83.83 81.35 82.24

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Total......................................... 92.95 82.78 87.71 88.16 85.81 86.81

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CO Emission Inventory Summary

[Tons per day]

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1990 1993 1996 1999 2002 2004

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Point............................................... 1.00 1.05 1.10 1.15 1.20 1.22

Area................................................ 32.54 32.58 32.61 32.65 32.68 32.70

Mobile.............................................. 624.97 497.74 514.10 531.51 560.27 583.27

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Total......................................... 658.51 531.37 547.81 565.31 594.15 617.19

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B. Demonstration of Maintenance--Projected Inventories

Total VOC, NOX, and CO emissions were projected from the 1990

base year out to 2004. These projected inventories were prepared in

accordance with EPA guidance. Refer to EPA's TSD prepared for this

notice for more in-depth details regarding the projected inventory for

the Raleigh/Durham area.

On January 12, 1994, the State of North Carolina submitted

supplemental projection inventories. The State recalculated growth

rates to include 1992 Vehicle Miles Traveled (VMT) data received in

late 1993 from the North Carolina Department of Transportation. The

projections indicate that VOC, NOx, and CO emissions remain under

the 1990 baseline emission inventory from 1990 through 2004. EPA

believes that the emissions projections demonstrate that the area will

continue to maintain the O3 NAAQS because this area achieved

attainment through VOC controls and reductions. The projected emission

inventories were submitted in the SAMS format.

C. Verification of Continued Attainment

Continued attainment of the O3 NAAQS in the Raleigh/Durham

area depends, in part, on the State of North Carolina's efforts toward

tracking indicators of continued attainment during the maintenance

period. The State of North Carolina's contingency plan is triggered by

two indicators, an air quality violation or the periodic emissions

inventory exceeding the baseline emission inventory by more than 10%.

As stated in the maintenance plan, the NCDEHNR will be developing these

periodic emissions inventories every three years beginning in 1996.

These periodic inventories will help to verify continued attainment.

Refer to the TSD prepared for this notice for a more complete

discussion of the indicators the State is tracking and the contingency

measures.

D. Contingency Plan

The level of VOC and NOx emissions in the Raleigh/Durham area

will largely determine its ability to stay in compliance with the

O3 NAAQS in the future. Despite the State's best efforts to

demonstrate continued compliance with the NAAQS, the ambient air

pollutant concentrations may exceed or violate the NAAQS. Therefore,

the State of North Carolina has provided contingency measures with a

schedule for implementation in the event of a future O3 air

quality problem. The plan contains a contingency to implement pre-

adopted additional control measures such as Reasonable Available

Control Technology (RACT) level control for not previously controlled

VOC sources, Stage II vapor control for gasoline dispensing facilities,

and new source permit requirements for VOC and NOx emissions to

include emission offsets, Lowest Achievable Emission Rate (LAER) level

control, and permit applicability. These pre-adopted additional

measures will be implemented within 45 days of the date the State

certifies to EPA that the air quality data which demonstrates a

violation of the O3 NAAQS is quality assured. The plan also

contains a secondary trigger that will apply where no actual violation

of the NAAQS has occurred. The secondary trigger is an exceedance of

the baseline emissions inventory by more than 10%. On the occurrence of

the secondary trigger, the State will commence, within 60 days of the

trigger, regulation development and adoption of measures amending the

State vehicle inspection and maintenance (I/M) program, extending

coverage of the I/M program, extending and/or lowering vapor pressure

limits for gasoline, extending geographic coverage of RACT controls,

transportation control measures, and RACT level control for NOx. A

complete description of these contingency measures and their triggers

can be found in the TSD prepared for this notice. EPA finds that the

contingency measures provided in the State of North Carolina submittal

meet the requirements of section 175A(d) of the CAA.

E. Subsequent Maintenance Plan Revisions

In accordance with section 175A(b) of the CAA, the State of North

Carolina has agreed to submit a revised maintenance SIP eight years

after the area is redesignated to attainment. Such revised SIP will

provide for maintenance for an additional ten years.

Final Action

In this final action, EPA is approving the Raleigh/Durham O3

maintenance plan, including the 1990 base year emission inventory,

because it meets the requirements of section 175A. In addition, the EPA

is redesignating the Raleigh/Durham area to attainment for O3

because the State of North Carolina has demonstrated compliance with

the requirements of section 107(d)(3)(E) for redesignation. This action

stops the sanctions and federal implementation plan clocks that were

triggered for the Raleigh/Durham area by the January 15, 1993, findings

letter. Nothing in this action should be construed as permitting or

allowing or establishing a precedent for any future request for

revision to any SIP. Each request for revision to the SIP shall be

considered separately in light of specific technical, economic, and

environmental factors and in relation to relevant statutory and

regulatory requirements.

The O3 SIP is designed to satisfy the requirements of part D

of the CAA and to provide for attainment and maintenance of the O3

NAAQS. This final redesignation should not be interpreted as

authorizing the State of North Carolina to delete, alter, or rescind

any of the VOC or NOx emission limitations and restrictions

contained in the approved O3 SIP. Changes to O3 SIP VOC

regulations rendering them less stringent than those contained in the

EPA approved plan cannot be made unless a revised plan for attainment

and maintenance is submitted to and approved by EPA. Unauthorized

relaxations, deletions, and changes could result in a finding of

nonimplementation (section 173(b) of the CAA) or in a SIP deficiency

call made pursuant to section 110(a)(2)(H) of the CAA.

Under the Regulatory Flexibility Act, 5 U.S.C. 600 et seq., EPA

must prepare a regulatory flexibility analysis assessing the impact of

any proposed or final rule on small entities. 5 U.S.C. 603 and 604.

Alternatively, EPA may certify that the rule will not have a

significant impact on a substantial number of small entities. Small

entities include small businesses, small not-for-profit enterprises,

and government entities with jurisdiction over populations of less than

50,000.

Redesignation of an area to attainment under section 107(d)(3)(E)

of the CAA does not impose any new requirements on small entities.

Redesignation is an action that affects the status of a geographical

area and does not impose any regulatory requirements on sources. The

Administrator certifies that the approval of the redesignation request

will not affect a substantial number of small entities.

This action is being taken without prior proposal because the

changes are noncontroversial and EPA anticipates no significant

comments on them. The public should be advised that this action will be

effective June 17, 1994. If, however, notice is received by May 18,

1994 that someone wishes to submit adverse or critical comments, this

action will be withdrawn and two subsequent notices will be published

before the effective date. One will withdraw the final action and the

other will begin a new rulemaking by announcing a comment period.

Under section 307(b)(1) of the CAA, 42 U.S.C. 7607 (b)(1),

petitions for judicial review of this action must be filed in the

United States Court of Appeals for the appropriate circuit by June 17,

1994. Filing a petition for reconsideration by the Administrator of

this final rule does not affect the finality of this rule for purposes

of judicial review nor does it extend the time within which a petition

for judicial review may be filed, and shall not postpone the

effectiveness of such rule or action. This action may not be challenged

later in proceedings to enforce its requirements. (See section

307(b)(2) of the CAA, 42 U.S.C. 7607 (b)(2).)

This action has been classified as a Table 2 action by the Regional

Administrator under the procedures published in the Federal Register on

January 19, 1989, (54 FR 2214-2225) as revised by a Memorandum from

Michael H. Shapiro to Regional Administrators, dated October 4, 1993.

On January 6, 1989, the Office of Management and Budget (OMB) waived

Table 2 and 3 SIP revisions (54 FR 2222) from the requirements of

section 3 of Executive Order 12291 for two years. The U.S. EPA has

submitted a request for a permanent waiver for Table 2 and Table 3 SIP

revisions. OMB has agreed to continue the temporary waiver until such

time as it rules on EPA's request. This request continues in effect

under Executive Order 12866 which superseded Executive Order 12291 on

September 30, 1993.

Nothing in this action shall be construed as permitting or allowing

or establishing a precedent for any future request for a revision to

any state implementation plan. Each request for revision to the state

implementation plan shall be considered separately in light of specific

technical, economic, and environmental factors and in relation to

relevant statutory and regulatory requirements.

List of Subjects

40 CFR Part 52

Air pollution control, Hydrocarbons, Incorporation by reference,

Intergovernmental relations, and Ozone.

40 CFR Part 81

Air pollution control, National parks, and Wilderness areas.

Dated: March 11, 1994.

Patrick M. Tobin,

Acting Regional Administrator.

Part 52 of chapter I, title 40, Code of Federal Regulations, is

amended as follows:

Part 52--[AMENDED]

1. The authority citation for part 52 continues to read as follows:

Authority: 42 U.S.C. 7401-7671q.

2. Section 52.1770 is amended by adding paragraph (c)(67) to read

as follows:

Sec. 52.1770 Identification of plan.

* * * * *

(c) * * *

(67) The maintenance plan and emission inventory for the Raleigh/

Durham Area which includes Durham County, Wake County, and the

Dutchville Township portion of Granville County submitted by the North

Carolina Department of Environment, Health, and Natural Resources on

November 13, 1992, and June 1, 1993, as part of the North Carolina SIP.

(i) Incorporation by reference.

(A) Supplement to the Redesignation Demonstration and Maintenance

Plan for the Greensboro/Winston-Salem/High Point and Raleigh/Durham

Ozone Attainment Areas submitted June 1, 1993, and Prepared by the

North Carolina Department of Environment, Health, and Natural

Resources, Division of Environmental Management, Air Quality Section.

The effective date is July 8, 1993.

(1) Section 2--Discussion of Attainment.

(2) Section 3--Maintenance Plan.

(3) Raleigh/Durham Nonattainment Area Emission Summary for 1990.

(4) Raleigh/Durham Nonattainment Area Emission Summary for 1993.

(5) Raleigh/Durham Nonattainment Area Emission Summary for 1996.

(6) Raleigh/Durham Nonattainment Area Emission Summary for 1999.

(7) Raleigh/Durham Nonattainment Area Emission Summary for 2002.

(8) Raleigh/Durham Nonattainment Area Emission Summary for 2004.

(ii) Other material. None

Part 81--[AMENDED]

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

Authority: 42.U.S.C. 7401-7671q.

2. Section 81.334, is amended by revising the attainment status

designation table for ozone to read as follows:

Sec. 81.334 North Carolina.

* * * * *

North Carolina--Ozone

----------------------------------------------------------------------------------------------------------------

Designation Classification

--------------------------------------------------------------------------------------

Date\1\

Date\1\ Type

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Charlotte-Gastonia Area:

Gaston County........ ........................ Nonattainment........... ....... Moderate.

Mecklenburg County... ........................ Nonattainment........... ....... Moderate.

Rest of State............ ........................ Unclassifiable/Attainmen

t.

Alamance County..........

Alexander County.........

Alleghany County.........

Anson County.............

Ashe County..............

Avery County.............

Beaufort County..........

Bertie County............

Bladen County............

Brunswick County.........

Buncombe County..........

Burke County.............

Cabarrus County..........

Caldwell County..........

Camden County............

Carteret County..........

Caswell County...........

Catawba County...........

Chatham County...........

Cherokee County..........

Chowan County............

Clay County..............

Cleveland County.........

Columbus County..........

Craven County............

Cumberland County........

Currituck County.........

Dare County..............

Davidson County.......... September 9, 1993.......

Davie County............. September 9, 1993.......

Durham County............ June 17, 1994...........

Duplin County............

Edgecombe County.........

Forsyth County........... September 9, 1993.......

Franklin County..........

Gates County.............

Graham County............

Granville County......... June 17, 1994...........

Greene County............

Guilford County.......... September 9, 1993.......

Halifax County...........

Harnett County...........

Haywood County...........

Henderson County.........

Hertford County..........

Hoke County..............

Hyde County..............

Iredell County...........

Jackson County...........

Johnston County..........

Jones County.............

Lee County...............

Lenoir County............

Lincoln County...........

McDowell County..........

Macon County.............

Madison County...........

Martin County............

Mitchell County..........

Montgomery County........

Moore County.............

Nash County..............

New Hanover County.......

Northhampton County......

Onslow County............

Orange County............

Pamlico County...........

Pasquotank County........

Pender County............

Perquimans County........

Person County............

Pitt County..............

Polk County..............

Randolph County..........

Richmond County..........

Robeson County...........

Rockingham County........

Rowan County.............

Rutherford County........

Sampson County...........

Scotland County..........

Stanly County............

Stokes County............

Surry County.............

Swain County.............

Transylvania County......

Tyrrell County...........

Union County.............

Vance County.............

Wake County.............. June 17, 1994...........

Warren County............

Washington County........

Watauga County...........

Wayne County.............

Wilkes County............

Wilson County............

Yadkin County............

Yancey County ...........

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\1\This date is November 15, 1990, unless otherwise noted.

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[FR Doc. 94-8967 Filed 4-15-94; 8:45 am]

BILLING CODE 6560-50-P