Source: https://www.ecfr.gov/cgi-bin/retrieveECFR?gp=&mc=true&r=SUBPART&n=sp40.2.51.aa
Timestamp: 2020-01-23 15:26:01
Document Index: 400014348

Matched Legal Cases: ['art 51', '§51', '§51', 'art 51', '§51', '§51', '§51', '§51', '§51', '§51', '§51', '§51', '§51', '§51', '§51', '§51', '§51', '§51', 'art 97', 'art 95', '§51', 'art 1', 'art 1', 'art 2', 'art 2', 'art 51', '§51', 'art 2', '§51', '§51', '§51', '§51', '§51', '§51', '§51', '§51', '§51', '§51', '§51', '§50', '§51', '§51', '§51', '§51']

Title 40 → Chapter I → Subchapter C → Part 51 → Subpart AA
§51.1100 Definitions.
§51.1101 Applicability of part 51.
§51.1102 Classification and nonattainment area planning provisions.
§51.1103 Application of classification and attainment date provisions in CAA section 181 to areas subject to §51.1102.
§51.1104 [Reserved]
§51.1107 Determining eligibility for 1-year attainment date extensions for the 2008 ozone NAAQS under CAA section 181(a)(5).
§51.1108 Modeling and attainment demonstration requirements.
§51.1109 [Reserved]
§51.1110 Requirements for reasonable further progress (RFP).
§51.1111 [Reserved]
§51.1112 Requirements for reasonably available control technology (RACT) and reasonably available control measures (RACM).
§51.1114 New source review requirements.
§51.1116 Requirements for an Ozone Transport Region.
§51.1118 Suspension of SIP planning requirements in nonattainment areas that have air quality data that meet an ozone NAAQS.
§51.1119 Applicability.
Source: 77 FR 30170, May 21, 2012, unless otherwise noted.
(o) Applicable requirements for an area for anti-backsliding purposes means the following requirements, to the extent such requirements apply to the area pursuant to its classification under CAA section 181(a)(1) for the 1-hour NAAQS or 40 CFR 51.902 for the 1997 ozone NAAQS at the time of revocation of the 1997 ozone NAAQS:
(p) CSAPR means the Cross State Air Pollution Rule codified at 40 CFR 52.38 and part 97.
(q) CAIR means the Clean Air Interstate Rule codified at 40 CFR 51.123, 52.35 and part 95.
(r) NOX SIP Call means the rules codified at 40 CFR 51.121 and 51.122.
(s) Ozone transport region (OTR) means the area established by CAA section 184(a) or any other area established by the Administrator pursuant to CAA section 176A for purposes of ozone.
(t) Reasonable further progress (RFP) means both the emissions reductions required under CAA section 172(c)(2) which EPA interprets to be an average 3 percent per year emissions reductions of either VOC or NOX and CAA sections 182(c)(2)(B) and (c)(2)(C) and the 15 percent reductions over the first six years of the plan and the following three percent per year average under §51.1110.
(u) Rate-of-progress (ROP) means the 15 percent progress reductions in VOC emissions over the first 6 years required under CAA section 182(b)(1).
(v) Revocation of the 1-hour NAAQS means the time at which the 1-hour NAAQS no longer apply to an area pursuant to 40 CFR 50.9(b).
(w) Revocation of the 1997 ozone NAAQS means the time at which the 1997 8-hour NAAQS no longer apply to an area pursuant to 40 CFR 50.10(c).
(x) Subpart 1 means subpart 1 of part D of title I of the CAA.
(y) Subpart 2 means subpart 2 of part D of title I of the CAA.
(z) I/M refers to the inspection and maintenance programs for in-use vehicles required under the 1990 CAA Amendments and defined by subpart S of 40 CFR part 51.
(bb) Base year inventory for the nonattainment area means a comprehensive, accurate, current inventory of actual emissions from sources of VOC and NOX emitted within the boundaries of the nonattainment area as required by CAA section 182(a)(1).
(cc) Ozone season day emissions means an average day's emissions for a typical ozone season work weekday. The state shall select, subject to EPA approval, the particular month(s) in the ozone season and the day(s) in the work week to be represented, considering the conditions assumed in the development of RFP plans and/or emissions budgets for transportation conformity.
An area designated nonattainment for the 2008 ozone NAAQS will be classified in accordance with CAA section 181, as interpreted in §51.1103(a), and will be subject to the requirements of subpart 2 of part D of title I of the CAA that apply for that classification.
Table 1—Classifications and Attainment Dates for 2008 8-Hour Ozone NAAQS (0.075 PPM) for Areas Subject to CFR Section 51.1102
Primary standard attainment date (years after the
effective date of designation for 2008 primary NAAQS)
Marginal from 0.076 3
up to* 0.086
Moderate from 0.086 6
up to* 0.100
Serious from 0.100 9
up to* 0.113
Severe-15 from 0.113 15
up to* 0.119
Severe-17 from 0.119 17
up to* 0.175
Extreme equal to or above 0.175 20
*But not including
[77 FR 30170, May 21, 2012, as amended at 80 FR 12313, Mar. 6, 2015]
(1) For the first 1-year extension, the area's 4th highest daily maximum 8 hour average in the attainment year is 0.075 ppm or less.
(2) For the second 1-year extension, the area's 4th highest daily maximum 8 hour value, averaged over both the original attainment year and the first extension year, is 0.075 ppm or less.
(b) For purposes of paragraph (a) of this section, the area's 4th highest daily maximum 8 hour average for a year shall be from the monitor with the highest 4th highest daily maximum 8 hour average for that year of all the monitors that represent that area.
(a) An area classified as Moderate under §51.1103(a) shall be subject to the attainment demonstration requirement applicable for that classification under CAA section 182(b), and such demonstration is due no later than 36 months after the effective date of the area's designation for the 2008 ozone NAAQS.
(b) An area classified as Serious or higher under §51.1103(a) shall be subject to the attainment demonstration requirement applicable for that classification under CAA section 182(c), and such demonstration is due no later than 48 months after the effective date of the area's designation for the 2008 ozone NAAQS.
(c) Attainment demonstration criteria. An attainment demonstration due pursuant to paragraph (a) or (b) of this section must meet the requirements of §51.112; the adequacy of an attainment demonstration shall be demonstrated by means of a photochemical grid model or any other analytical method determined by the Administrator, in the Administrator's discretion, to be at least as effective.
(d) Implementation of control measures. For each nonattainment area, the state must provide for implementation of all control measures needed for attainment no later than the beginning of the attainment year ozone season.
(a) RFP for nonattainment areas classified pursuant to §51.1103. The RFP requirements specified in CAA section 182 for that area's classification shall apply.
(1) Submission deadline. For each area classified as Moderate or higher pursuant to §51.1103, the state shall submit a SIP revision no later than 36 months after the effective date of designation as nonattainment for the 2008 ozone NAAQS that provides for RFP as described in paragraphs (a)(2) through (4) of this section.
(2) RFP requirements for areas with an approved 1-hour or 1997 ozone NAAQS 15 percent VOC ROP plan. An area classified as Moderate or higher that has the same boundaries as an area, or is entirely composed of several areas or portions of areas, for which EPA fully approved a 15 percent plan for the 1-hour or 1997 ozone NAAQS is considered to have met the requirements of CAA section 182(b)(1) for the 2008 ozone NAAQS and instead:
(i) If classified as Moderate or higher, the area is subject to the RFP requirements under CAA section 172(c)(2) and shall submit a SIP revision that:
(A) Provides for a 15 percent emission reduction from the baseline year within 6 years after the baseline year;
(B) Provides for an additional emissions reduction of 3 percent per year from the end of the first 6 years up to the beginning of the attainment year if a baseline year earlier than 2011 is used; and
(C) Relies on either NOX or VOC emissions reductions (or a combination) to meet the requirements of paragraphs (a)(2)(i)(A) and (B) of this section. Use of NOX emissions reductions must meet the criteria in CAA section 182(c)(2)(C).
(ii) If classified as Serious or higher, the area is also subject to RFP under CAA section 182(c)(2)(B) and shall submit a SIP revision no later than 48 months after the effective date of designation providing for an average emissions reduction of 3 percent per year:
(A) For all remaining 3-year periods after the first 6-year period until the year of the area's attainment date; and
(B) That relies on either NOX or VOC emissions reductions (or a combination) to meet the requirements of paragraphs (a)(2)(ii)(A) and (B) of this section. Use of NOX emissions reductions must meet the criteria in CAA section 182(c)(2)(C).
(3) RFP requirements for areas for which an approved 15 percent VOC ROP plan for the 1-hour or 1997 ozone NAAQS exists for only a portion of the area. An area that contains one or more portions for which EPA fully approved a 15 percent VOC ROP plan for the 1-hour or 1997 ozone NAAQS (as well as areas for which EPA has not fully approved a 15 percent plan for either the 1-hour or 1997 ozone NAAQS) shall meet the requirements of either paragraph (a)(3)(i) or (ii) of this section.
(i) The state shall not distinguish between the portion of the area with a previously approved 15 percent ROP plan and the portion of the area without such a plan, and shall meet the requirements of (a)(4) of this section for the entire nonattainment area.
(A) For the portion of the area without an approved 15 percent VOC ROP plan for the 1-hour or 1997 ozone NAAQS, the state shall submit a SIP revision as required under paragraph (a)(4) of this section.
(B) For the portion of the area with an approved 15 percent VOC ROP plan for the 1-hour or 1997 ozone NAAQS, the state shall submit a SIP as required under paragraph (a)(2) of this section.
(4) ROP Requirements for areas without an approved 1-hour or 1997 ozone NAAQS 15 percent VOC ROP plan. (i) For each area, the state shall submit a SIP revision consistent with CAA section 182(b)(1). The 6-year period referenced in CAA section 182(b)(1) shall begin January 1 of the year following the year used for the baseline emissions inventory.
(ii) For Moderate areas, the plan must provide for an additional 3 percent per year reduction from the end of the first 6 years up to the beginning of the attainment year if a baseline year from 2008 to 2010 is used.
(iii) For each area classified as Serious or higher, the state shall submit a SIP revision consistent with CAA section 182(c)(2)(B). The final increment of progress must be achieved no later than the attainment date for the area.
(5) Creditability of emission control measures for RFP plans. Except as specifically provided in CAA section 182(b)(1)(C) and (D), CAA section 182(c)(2)(B), and 40 CFR 51.1110(a)(6), all emission reductions from SIP-approved or federally promulgated measures that occur after the baseline emissions inventory year are creditable for purposes of the RFP requirements in this section, provided the reductions meet the requirements for creditability, including the need to be enforceable, permanent, quantifiable, and surplus.
(6) Creditability of out-of-area emissions reductions. For each area classified as Moderate or higher pursuant to §51.1103, in addition to the restrictions on the creditability of emission control measures listed in §51.1110(a)(5), creditable emission reductions for fixed percentage reduction RFP must be obtained from sources within the nonattainment area.
(b) Baseline emissions inventory for RFP plans. For the RFP plans required under this section, at the time of designation for the 2008 ozone NAAQS the baseline emissions inventory shall be the emissions inventory for the most recent calendar year for which a complete triennial inventory is required to be submitted to EPA under the provisions of subpart A of this part. States may use an alternative baseline emissions inventory provided the state demonstrates why it is appropriate to use the alternative baseline year, and provided that the year selected is between the years 2008 to 2012. All states associated with a multi-state nonattainment area must consult and agree on a single alternative baseline year. The emissions values included in the inventory required by this section shall be actual ozone season day emissions as defined by §51.1100(cc).
(a) RACT requirement for areas classified pursuant to §51.1103. (1) For each nonattainment area classified Moderate or higher, the state shall submit a SIP revision that meets the VOC and NOX RACT requirements in CAA sections 182(b)(2) and 182(f).
(2) The state shall submit the RACT SIP for each area no later than 24 months after the effective date of designation for the 2008 ozone NAAQS.
(3) The state shall provide for implementation of RACT as expeditiously as practicable but no later than January 1 of the 5th year after the effective date of designation for the 2008 ozone NAAQS.
(c) Reasonably Available Control Measures (RACM) requirement. For each nonattainment area required to submit an attainment demonstration under §51.1108(a) and (b), the state shall submit with the attainment demonstration a SIP revision demonstrating that it has adopted all RACM necessary to demonstrate attainment as expeditiously as practicable and to meet any RFP requirements.
The requirements for nonattainment NSR for the ozone NAAQS are located in §51.165. For each nonattainment area, the state shall submit a nonattainment NSR plan or plan revision for the 2008 ozone NAAQS no later than 36 months after the effective date of the area's designation for the 2008 ozone NAAQS.
Upon a determination by EPA that an area designated nonattainment for the 2008 ozone NAAQS, or for any prior ozone NAAQS, has attained the relevant standard, the requirements for such area to submit attainment demonstrations and associated reasonably available control measures, reasonable further progress plans, contingency measures for failure to attain or make reasonable progress and other planning SIPs related to attainment of the 2008 ozone NAAQS, or for any prior NAAQS for which the determination has been made, shall be suspended until such time as: The area is redesignated to attainment for that NAAQS or a redesignation substitute is approved as appropriate, at which time the requirements no longer apply; or EPA determines that the area has violated that NAAQS, at which time the area is again required to submit such plans.
As of revocation of the 1997 ozone NAAQS on April 6, 2015, as set forth in §50.10(c), the provisions of subpart AA shall replace the provisions of subpart X, §§51.900 to 51.918, which cease to apply except for §51.907 for the anti-backsliding purposes of §51.1105(c)(2). See subpart X §51.919.