ENVIRONMENTAL PROTECTION AGENCY 

40 CFR Parts 52 and 81 

[EPA-RO4-OAR-2009-0164-200916; FRL- ] 

Approval and Promulgation of Implementation Plans and Designation of Areas for Air 

Quality Planning Purposes; Tennessee; Redesignation of the Shelby County, 

Tennessee Portion of the Memphis, Tennessee-Arkansas 1997 8-Hour Ozone 

Nonattainment Area to Attainment 

AGENCY: Environmental Protection Agency (EPA). 

ACTION: Final rule. 

SUMMARY: EPA is taking final action to approve a request submitted on February 26,2009, 

from the State of Tennessee, through the Tennessee Department of Environment and 

Conservation (TDEC), Air Pollution Control Division, to redesignate the Tennessee portion of 

the bi-state Memphis, Tennessee-Arkansas 8-hour ozone nonattainment area (hereafter referred 

to as the "bi-state Memphis Area") to attainment for the 1997 8-hour ozone national ambient air 

quality standards (NAAQS). The bi-state Memphis 1997 8-hour ozone NAAQS nonattainment 

area is composed of Shelby County, Tennessee and Crittenden County, Arkansas. EPA's 

approval of the redesignation request is based on the determination that the bi-state Memphis 

Area has met the criteria for redesignation to attainment set forth in the Clean Air Act (CAA), 

including the determination that the bi-state Memphis Area has attained the 1997 8-hour ozone 

standard. Additionally, EPA is approving a revision to the Tennessee State Implementation Plan 

(SIP) including the 1997 8-hour ozone maintenance plan for Shelby County, Tennessee that 

contains the new 2006, 2009,2017, and 2021 motor vehicle emission budgets (MVEBs) for 

nitrogen oxides (NOx) and volatile organic compounds (VOC) for Shelby County, Tennessee. 
This action also approves the emissions inventory submitted with the maintenance plan (under 

the CAA section l82(a)(l)). The State of Arkansas has submitted a similar redesignation request 

and maintenance plan for the Arkansas portion of this 1997 8-hour ozone area. EPA is taking 

action on Arkansas' redesignation request, emissions inventory and maintenance plan through a 

separate rulemaking action. On March 12,2008, EPA issued a revised 8-hour ozone standard. 

EPA later announced on September 16,2009, that it may reconsider this revised ozone standard. 

The current action, however, is being taken to address requirements under the 1997 8-hour ozone 

NAAQS. Requirements for the bi-state Memphis Area under the 2008 standard will be 

addressed in the future. 

EFFECTIVE DATE: This rule will be effective [insert 30 days after date of publication in the 

Federal Register]. 

ADDRESSES: EPA has established a docket for this action under Docket Identification No. 

EPA-R04-OAR-20094164. All documents in the docket are listed on the www.regulations.gov 

Web site. Although listed in the index, some information is not publicly available, i.e., 

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 through www.regulations.gov or in hard copy at the Regulatory 

Development Section, Air Planning Branch, Air, Pesticides and Toxics Management Division, 

U.S. Environmental Protection Agency, Region 4,61 Forsyth Street, SW, Atlanta, Georgia 

30303-8960. EPA requests that if at all possible, you contact the person listed in the FOR 
FURTHER INFORMATION CONTACT section to schedule your inspection. The Regional 

Office's official hours of business are Monday through Friday, 8:30 to 4:30, excluding federal 

holidays. 

FOR FURTHER INFORMATION CONTACT: Jane Spann or Twunjala Bradley, 

Regulatory Development Section, Air Planning Branch, Air, Pesticides and Toxics Management 

Division, U.S. Environmental Protection Agency, Region 4,61 Forsyth Street, SW, Atlanta, 

Georgia 30303-8960. Jane Spann may be reached by phone at (404) 562-9029 or via electronic 

mail at spann.iane@e~a.g;ov. The telephone number for Ms. Bradley is (404) 562-9352 and the 

electronic mail at bradley .twun~ala@epa.g;ov. 

SUPPLEMENTARY INFORMATION: 

Table of Contents 

I. 

11. 

111. 

IV. 

v. 

VI. 

I. 

What is the Background for the Actions? 

What Actions is EPA Taking? 

Why is EPA Taking These Actions? 

What are the Effects of These Actions? 

Final Action 

Statutory and Executive Order Reviews 

What is the Background for the Actions? 

On February 26,2009, the State of Tennessee, through TDEC, submitted a request to 

redesignate Shelby County, Tennessee (as part of the bi-state Memphis Area) to attainment for 

3 
the 1997 8-hour ozone standard, and for EPA approval of the Tennessee SIP revision containing 

a maintenance plan for Shelby County, Tennessee. In an action published on November 19, 

2009 (74 FR 59943), EPA proposed to approve the redesignation of Shelby County, Tennessee 

(as part of the bi-state Memphis Area) to attainment. EPA also proposed approval of 

Tennessee's plan for maintaining the 1997 8-hour NAAQS as a SIP revision, including the 

emissions inventory submitted pursuant to CAA section 182(a)(l); and proposed to approve the 

NOx and VOC MVEBs for Shelby County that were contained in the maintenance plan. In the 

November 19,2009, proposed action, EPA also provided information on the status of its 

transportation conformity adequacy determination for the Shelby County NOx and VOC 

MVEBs. EPA received no comments on the November 19,2009, proposal. Additionally, in a 

separate notice, EPA has already found the NOx and VOC MVEBs, as contained in Tennessee's 

maintenance plan for Shelby County, adequate for the purposes of transportation conformity. 

The MVEBs included in the maintenance plan area as follows: 

Table 1 

SHELBY COUNTY VOC AND NOx MVEBs I 

(summer season tons per day) 

Year 

EPA's adequacy public comment period on these MVEBs (as contained in Tennessee's 

NOx 

VOC 

submittal) began on March 12,2009, and closed on April 13,2009. No comments were received 

2006 

during EPA's adequacy public comment period. In a letter dated September 18,2009, EPA 

55.878 

25.216 

informed the State of Tennessee of its intent to make an affirmative adequacy determination for 

4 

2009 

55.620 

27.240 

2017 2021 

55.173 

18.323 

54.445 

13.817 
the MVEBs contained in this maintenance plan for Shelby County, Tennessee. On November 

12,2009 (74 FR 58277), EPA published a Federal Register notice deeming the MVEBs for 

Shelby County, Tennessee adequate for transportation conformity purposes. EPA provided a 

separate adequacy posting for the MVEBs in association with Crittenden County, Arkansas. The 

Crittenden County, Arkansas MVEBs (in association with the bi-state Memphis Area) were 

found adequate through a separate action published May 7,2009 (74 FR 21356). As was 

discussed in greater detail in the November 19,2009, proposal, this redesignation is for the 1997 

8-hour ozone designations finalized in April 30,2004 (69 FR 23857). Various aspects of EPA's 

Phase 1 8-hour ozone implementation rule were challenged in court and on December 22,2006, 

the U.S. Court of Appeals for the District of Columbia Circuit (D.C. Circuit Court) vacated 

EPA's Phase 1 Implementation Rule for the 8-hour Ozone Standard. (69 FR 23951, April 30, 

2004). South Coast Air Quality Management Dist. (SCAQMD) v. EPA, 472 F.3d 882 (D.C. Cir. 

2006). On June 8,2007, in response to several petitions for rehearing, the D.C. Circuit Court 

clarified that the Phase 1 Rule was vacated only with regard to those parts of the Rule that had 

been successfully challenged. Therefore, the Phase 1 Rule provisions related to classifications 

for areas currently classified under subpart 2 of title I, part D of the CAA as 8-hour 

nonattainment areas, the 8-hour attainment dates and the timing for emissions reductions needed 

for attainment of the 8-hour ozone NAAQS, remain effective. The June 8th decision left intact 

the Court's rejection of EPA's reasons for implementing the 8-hour standard in certain 

nonattainment areas under subpart 1 in lieu of subpart 2. By limiting the vacatur, the Court let 

stand EPA's revocation of the l-hour standard and those anti-backsliding provisions of the Phase 

1 Rule that had not been successfully challenged. The June 8th decision affirmed the December 

22,2006, decision that EPA had improperly failed to retain measures required for l-hour 

5 
nonattainment areas under the anti-backsliding provisions of the regulations: (1) nonattainment 

area New Source Review requirements based on an area's 1-hour nonattainment classification; 

(2) Section 185 penalty fees for 1 -hour severe or extreme nonattainment areas; and (3) measures 

to be implemented pursuant to section 172(c)(9) or 182(c)(9) of the CAA, on the contingency of 

an area not making reasonable further progress toward attainment of the 1-hour NAAQS, or for 

failure to attain that NAAQS. The June 8th decision clarified that the Court's reference to 

conformity requirements for anti-backsliding purposes was limited to requiring the continued use 

of 1 -hour MVEBs until 8-hour budgets were available for 8-hour conformity determinations, 

which is already required under EPA's conformity regulations. The Court thus clarified that 1- 

hour conformity determinations are not required for anti-backsliding purposes. 

With respect to the requirement for transportation conformity under the 1 -hour standard, 

the Court in its June 8th decision clarified that for those areas with 1-hour MVEBs in their 1- 

hour maintenance plans, anti-backsliding requires only that those 1-hour budgets must be used 

for 8-hour conformity determinations until replaced by 8-hour budgets. To meet this 

requirement, conformity determinations in such areas must continue to comply with the 

applicable requirements of EPA's conformity regulations at 40 CFR Part 93. Shelby County, 

Tennessee has 1-hour budgets and is currently using these budgets to demonstrate transportation 

conformity until 1997 8-hour budgets are in place. 

For the above reasons, and those set forth in the November 19,2009, proposal for the 

redesignation of Shelby County, Tennessee, EPA does not believe that the Court's rulings alter 

any requirements relevant to this redesignation action so as to preclude redesignation, and do not 

prevent EPA from finalizing this redesignation. EPA believes that the Court's December 22, 

2006, and June 8,2007, decisions impose no impediment to moving forward with redesignation 

6 
of shklby County, Tennessee to attainment. Even in light of the Court's decisions, redesignation 

is appropriate under the relevant redesignation provisions of the CAA and longstanding policies 

regarding redesignation requests. 

11. What Actions is EPA Taking? 

EPA is taking final action to approve Tennessee's redesignation request and to change the 

legal designation of Shelby County, Tennessee from nonattainment to attainment for the 1997 8- 

hour ozone NAAQS. The bi-state Memphis 1997 8-hour ozone NAAQS nonattainment area is 

composed of Shelby County, Tennessee and Crittenden County, Arkansas. The redesignation 

request, maintenance plan and emission inventory in association with the Arkansas portion of 

this Area will be addressed through a separate, but coordinated action. In this action, EPA is also 

approving Tennessee's 1997 8-hour ozone maintenance plan for Shelby County, Tennessee (such 

approval being one of the CAA criteria for redesignation to attainment status), including the 

emissions inventory which was submitted pursuant to CAA section 182(a)(l). The maintenance 

plan is designed to help keep Shelby County, Tennessee (as part of the bi-state Memphis Area) in 

attainment for the 1997 8-hour ozone NAAQS through 2021. These approval actions are based 

on EPA's determination that Tennessee has demonstrated that Shelby County, Tennessee has met 

the criteria for redesignation to attainment specified in the CAA, including a demonstration that 

the bi-state Memphis Area has attained the 1997 8-hour ozone standard. EPA's analyses of 

Tennessee's 1997 8-hour ozone redesignation request and maintenance plan are described in 

detail in the proposed rule published November 19,2009 (74 FR 59943). 

Consistent with the CAA, the maintenance plan that EPA is approving also includes 

2006,2009,2017, and 2021 MVEBs for NOx and VOC for Shelby County, Tennessee. In this 

7 
action, EPA is approving these NOx and VOC MVEBs for the purposes of transportation 

conformity. For regional emission analysis years that involve years prior to 2017, the new 2009 

MVEB are the applicable budgets (for the purpose of conducting transportation conformity 

analyses). For regional emission analysis years that involve years prior to 2021, the new 2017 

MVEB are the applicable budgets (for the purpose of conducting transportation conformity 

analyses). For regional emission analysis years that involve the year 2021 and beyond, the 

applicable budgets, for the purpose of conducting transportation conformity analyses, are the 

new 2021 MVEB. In practical terms, the 2006 MVEBs will not be used in Shelby County, 

Tennessee because this action is being taken in 2009, and there are MVEBs being established for 

the year 2009 which are required to be used. 

111. Why is EPA Taking These Actions? 

EPA has determined that the bi-state Memphis Area has attained the 1997 8-hour ozone 

standard and has also determined that Tennessee has demonstrated that all other criteria for the 

redesignation of Shelby County, Tennessee (as part of the bi-state Memphis Area) from 

nonattainment to attainment of the 1997 8-hour ozone NAAQS have been met. See, section 

107(d)(3)(E) of the CAA. EPA is also taking final action to approve the maintenance plan for 

Shelby County, Tennessee as meeting the requirements of sections 175A and 107(d) of the CAA, 

and the emissions inventory as meeting the requirements of section 182(a)(l) of the CAA. 

Furthermore, EPA is approving the new NOx and VOC MVEBs for the years 2006,2009,2017, 

and 2021 contained in Tennessee's maintenance plan for Shelby County because these MVEBs 

are consistent with maintenance for the bi-state Memphis Area. In the November 19,2009, 

proposal to redesignate Shelby County, Tennessee (as part of the bi-state Memphis Area), EPA 

8 
described the applicable criteria for redesignation to attainment and its analysis of how those 

criteria have been met. The rationale for EPA's findings and actions is set forth in the proposed 

rulemaking and summarized in this final rulemaking. 

IV. What are the Effects of These Actions? 

Approval of the redesignation request changes the legal designation of Shelby County, 

Tennessee (as part of the bi-state Memphis Area) from nonattainment to attainment for the 1997 

8-hour ozone NAAQS, found at 40 CFR part 81. The approval also incorporates into the 

Tennessee SIP a plan for maintaining the 1997 8-hour ozone NAAQS in the bi-state Memphis 

Area through 2021. The maintenance plan includes contingency measures to remedy future 

violations of the 1997 8-hour ozone NAAQS, and establishes NOx and VOC MVEBs for the 

years 2006,2009,2017, and 2021 for Shelby County, Tennessee. Additionally, this action 

approves the emissions inventory for this area pursuant to section 182(a)(l) of the CAA. The 

other portion of the bi-state Memphis Area is Crittenden County, Arkansas. EPA is taking action 

on Arkansas' redesignation request for Crittenden County Arkansas (as part of the bi-state 

Memphis area) and the associated emissions inventory and maintenance plan through a separate 

rulemaking action. 

V. Final Action 

After evaluating Tennessee's redesignation request, EPA is taking final action to approve 

the redesignation and change the legal designation of Shelby County, Tennessee (as part of the 

bi-state Memphis Area) from nonattainment to attainment for the 1997 8-hour ozone NAAQS. 

EPA is addressing the redesignation request, emission inventory and maintenance plan for 

9 
Crittenden County, Arkansas (as a portion of the bi-state Memphis Area) in a separate but 

coordinated action. Through this action, EPA is also approving into the Tennessee SIP, the 1997 

8-hour ozone maintenance plan for the Shelby County, Tennessee, which includes the new NOx 

MVEBs of 55.878 tons per day (tpd) for 2006,55.620 tpd for 2009,55.173 tpd for 2017, and 

54.445 tpd for 2021; and new VOC MVEBs of 25.2 16 tpd for 2006,27.240 tpd for 2009, 18.323 

tpd for 2017, and 13.817 tpd for 202 1. These new MVEBs were found adequate through a 

previous action (74 FR 58277). Within 24 months from the effective date of EPA's adequacy 

finding for the MVEBs, the transportation partners will need to demonstrate conformity to the 

new NOx and VOC MVEBs pursuant to 40 CFR 93.104(e). Additionally, EPA is approving the 

emissions inventory for the Shelby County pursuant to section 182(a)(l) of the CAA. 

VI. Statutory and Executive Order Reviews 

Under the Clean Air Act, the Administrator is required to approve a SIP submission that 

complies with the provisions of the Act and applicable Federal regulations. 42 U.S.C. 7410(k); 

40 CFR 52.02(a). Thus, in reviewing SIP submissions, EPA's role is to approve state choices, 

provided that they meet the criteria of the Clean Air Act. Accordingly, this action merely 

approves state law as meeting Federal requirements and does not impose additional requirements 

beyond those imposed by state law. For that reason, this action: 

is not a "significant regulatory action" subject to review by the Office of Management 

and Budget under Executive Order 12866 (58 FR 51735, October 4,1993); 

does not impose an information collection burden under the provisions of the Paperwork 

Reduction Act (44 U.S.C. 3501 et seq.); 
is certified as not having a significant economic impact on a substantial number of small 

entities under the Regulatory Flexibility Act (5 U.S.C. 601 et seq.); 

does not contain any unfunded mandate or significantly or uniquely affect small 

governments, as described in the Unfunded Mandates Reform Act of 1995 (Public Law 

does not have Federalism implications as specified in Executive Order 13132 (64 FR 

43255, August 10, 1999); 

is not an economically significant regulatory action based on health or safety risks subject 

to Executive Order 13045 (62 FR 19885, April 23, 1997); 

is not a significant regulatory action subject to Executive Order 1321 1 (66 FR 28355, 

May 22,2001); 

is not subject to requirements of Section 12(d) of the National Technology Transfer and 

~dvancement Act of 1995 (15 U.S.C. 272 note) because application of those 

requirements would be inconsistent with the Clean Air Act; and 

does not provide EPA with the discretionary authority to address, as appropriate, 

disproportionate human health or environmental effects, using practicable and legally 

permissible methods, under Executive Order 12898 (59 FR 7629, February 16, 1994). 

In addition, this rule does not have tribal implications as specified by Executive Order 13 175 (65 

FR 67249, November 9,2000), because the SIP is not approved to apply in Indian country 

located in the state, and EPA notes that it will not impose substantial direct costs on tribal 

goverpments or preempt tribal law. 
The Congressional Review Act, 5 U.S.C. 801 et seq., as added by the Small Business 

Regulatory Enforcement Fairness Act of 1996, generally provides that before a rule may take 

effect, the agency promulgating the rule must submit a rule report, which includes a copy of the 

rule, to each House of the Congress and to the Comptroller General of the United States. EPA 

will submit a report containing this action and other required information to the U.S. Senate, the 

U.S. House of Representatives, and the Comptroller General of the United States prior to 

publication of the rule in the Federal Register. A major rule cannot take effect until 60 days after 

it is published in the Federal Register. This action is not a "major rule" as defined by 5 U.S.C. 

804(2). 

Under section 307(b)(l) of the Clean Air Act, petitions for judicial review of this action 

must be filed in the United States Court of Appeals for the appropriate circuit by [FEDERAL 

REGISTER OFFICE: insert date 60 day from date of ~ublication of this document in the 

Federal Register]. Filing a petition for reconsideration by the Administrator of this final rule 

does not affect the finality of this action for the 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).) 
List of Subjects: 

40 CFR Part 52 

Environmental protection, Air pollution control, Intergovernmental relations, 

Incorporation by reference, Nitrogen dioxide, Ozone, Reporting and recordkeeping requirements, 

Volatile organic compounds. 

40 CFR Part 81 

Environmental protection and Air pollution control. 

DEC 2 2 XQ9 

Dated: 

~everr~ H. Banister J 

Acting Regional Administrator, 

Region 4. 
40 CFR part 52 and 81 are amended as follows: 

PART 52-[AMENDED] 

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

Authority: 42 U.S.C. 7401 et sea. 

Subpart RR - Tennessee 

2. Section 52.2220(e) is amended by adding a new entry at the end of the table for "8-Hour 

Ozone Maintenance Plan for Shelby County, Tennessee" to read as follows: 

8 52.2220 Identification of plan 

(e) * * * 

regulatory SIP 

provision 

ZPA- Approved Tern 

Applicable 

geographic or 

nonattainrnent area 

8-Hour Ozone 

Maintenance plan 

for the Shelby 

County, Tennessee 

Area 

Memphis, Shelby 

County 

February 26, 

2009 

[Insert date 

of 

publication in 

Federal 

Register] 

[Insert 

citation of 

publication] 

Explanation 
PART 81-[AMENDED] 

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

Authority: 42 U.S.C. 740 1 et seq. 

2. In 5 81.343, the table entitled "Tennessee-Ozone (8-Hour Standard)" is amended by revising 

the entry for "Memphis, TN-AR: Shelby County," to read as follows: 

8 81.343 Tennessee 

Designated area 

Memphis, TN-AR: 

Shelby County 

Tennessee-Ozone (8-Hour Standard) 

[Insert 

date of 

publication 

in Federal 

Register1 

Attainment 

- 

- 

- 

- J I I I 

a Includes Indian Country located in each county or area, except as otherwise specified. 

This date is June 15,2004, unless otherwise noted. 

'~ffective April 15, 2008. *****