Section 52.223 - Approval status(a) With the exceptions set forth in this subpart, the Administrator approves California's plan for the attainment and maintenance of the national standards under section 110 of the Clean Air Act.(b) With the exceptions set forth in this subpart, the Administrator approves the plan with respect to Part D, Title I of the Clean Air Act, as amended in 1977, for the nonattainment areas listed in this paragraph. In addition, continued satisfaction of the requirements of Part D for the ozone portion of the State Implementation Plan (SIP) depends on the adoption and submittal of reasonably available control technology (RACT) requirements by July 1, 1980, for sources covered by Control Technique Guidelines (CTGs) issued between January 1978 and January 1979 and adoption and submittal by each subsequent January of additional RACT requirements for sources covered by CTGs issued by the previous January. (1) Imperial County for O3.(2) North Central Coast Air Basin for O3.(3) South Coast Air Basin for O3, CO, NO2, and PM.(4) San Diego Air Basin for O3, CO, and TSP.(5) San Joaquin Valley Air Basin. (i) Kern County nonattainment area for ozone, CO, SO2, and PM.(ii) Kings County for O3 and TSP.(iii) Madera County for O3 and TSP.(iv) Merced County for O3 and TSP.(v) San Joaquin County for CO, O3 and TSP.(vi) Stanislaus County for CO, O3 and TSP.(vii) Tulare County for O3 and TSP.(viii) Fresno County for O3, CO, and TSP.(6) South Central Coast Air Basin. (i) Santa Barbara County nonattainment area for O3, CO and TSP.(ii) Ventura County for O3, CO and TSP.(7) Sacramento Valley Air Basin. (i) Butte County for O3 and CO.(ii) Sutter County for O3.(iii) Yuba County for O3.(iv) Sacramento AQMA for O3.(v) Sacramento County Metropolitan Area for CO.(8) Southeast Desert Air Basin. (i) Los Angeles County for Ozone.(ii) San Bernardino County for Ozone.(iii) Riverside County for Ozone.(9) San Francisco Bay Area Air Basin for O3, CO and TSP.(10) Mountain Counties Air Basin. (i) El Dorado County (Mountain Counties Air Basin portion) for O3.(ii) Placer County (Mid-County portion) for O3.(d) With the exceptions set forth in this subpart, the Administrator approves the plan with respect to Part D, Title I of the Clean Air Act, as amended in 1977, for the nonattainment areas listed in this paragraph.(1) Lake Tahoe Basin for CO.(2) EPA approves the CO plan for the Lake Tahoe Basin as meeting the requirements of Part D. This approval includes the resolution of the Lake Tahoe Regional Planning Agency banning new source construction pending the adoption of a new regional plan and ordinances. However, EPA disapproves the plan for any future time during which the Tahoe Regional Planning Agency may remove its construction ban prior to EPA approval of the new regional plan and ordinances.(e) The Administrator approves the following portions of the 1999 Ozone Attainment Plan for the San Francisco Bay Area submitted by the California Air Resources Board on August 13, 1999: the 1995 baseline emissions inventory, the reasonable further progress demonstration, and the deletion of transportation control measures #6 and #16.(f)(1) Insofar as the Prevention of Significant Deterioration (PSD) provisions found in North Coast Unified Air Quality Management District's approved plan apply to stationary sources of greenhouse gas (GHGs) emissions, the Administrator approves that application only to the extent that GHGs are "subject to regulation", as provided in this paragraph (b), and the Administrator takes no action on that application to the extent that GHGs are not "subject to regulation."(2) Beginning January 2, 2011, the pollutant GHGs is subject to regulation if: (i) The stationary source is a new major stationary source for a regulated NSR pollutant that is not GHGs, and also will emit or will have the potential to emit 75,000 tpy CO2e or more; or(ii) The stationary source is an existing major stationary source for a regulated NSR pollutant that is not GHGs, and also will have an emissions increase of a regulated NSR pollutant, and an emissions increase of 75,000 tpy CO2e or more; and(3) Beginning July 1, 2011, in addition to the provisions in paragraph (b)(2) of this section, the pollutant GHGs shall also be subject to regulation: (i) At a new stationary source that will emit or have the potential to emit 100,000 tpy CO2e; or(ii) At an existing stationary source that emits or has the potential to emit 100,000 tpy CO2e, when such stationary source undertakes a physical change or change in the method of operation that will result in an emissions increase of 75,000 tpy CO2e or more.(4) For purposes of this paragraph (b)- (i) The term greenhouse gas shall mean the air pollutant defined in 40 CFR 86.1818-12(a) as the aggregate group of six greenhouse gases: Carbon dioxide, nitrous oxide, methane, hydrofluorocarbons, perfluorocarbons, and sulfur hexafluoride.(ii) The term tpy CO2 equivalent emissions (CO2e) shall represent an amount of GHGs emitted, and shall be computed as follows: (A) Multiplying the mass amount of emissions (tpy), for each of the six greenhouse gases in the pollutant GHGs, by the gas's associated global warming potential published at Table A-1 to subpart A of 40 CFR part 98 -Global Warming Potentials.(B) Sum the resultant value from paragraph (b)(4)(ii)(A) of this section for each gas to compute a tpy CO2e.(iii) The term emissions increase shall mean that both a significant emissions increase (as calculated using the procedures in the EPA-approved North Coast Unified Air Quality Management District rules at R1-1-130(s2)) and a significant net emissions increase (as defined in the North Coast Unified Air Quality Management District rules at R1-1-130(n1)) occur. For the pollutant GHGs, an emissions increase shall be based on tpy CO2e, and shall be calculated assuming the pollutant GHGs is a regulated NSR pollutant, and "significant" is defined as 75,000 tpy CO2e instead of applying the value in the EPA-approved North Coast Unified Air Quality Management District rules at R1-1-130(s2).(g)(1) Insofar as the Prevention of Significant Deterioration (PSD) provisions found in Northern Sonoma County Air Pollution Control District's approved plan apply to stationary sources of greenhouse gas (GHGs) emissions, the Administrator approves that application only to the extent that GHGs are "subject to regulation", as provided in this paragraph (b), and the Administrator takes no action on that application to the extent that GHGs are not "subject to regulation."(2) Beginning January 2, 2011, the pollutant GHGs is subject to regulation if: (i) The stationary source is a new major stationary source for a regulated NSR pollutant that is not GHGs, and also will emit or will have the potential to emit 75,000 tpy CO2e or more; or(ii) The stationary source is an existing major stationary source for a regulated NSR pollutant that is not GHGs, and also will have an emissions increase of a regulated NSR pollutant, and an emissions increase of 75,000 tpy CO2e or more; and,(3) Beginning July 1, 2011, in addition to the provisions in paragraph (b)(2) of this section, the pollutant GHGs shall also be subject to regulation: (i) At a new stationary source that will emit or have the potential to emit 100,000 tpy CO2e; or(ii) At an existing stationary source that emits or has the potential to emit 100,000 tpy CO2e, when such stationary source undertakes a physical change or change in the method of operation that will result in an emissions increase of 75,000 tpy CO2e or more.(4) For purposes of this paragraph (b)- (i) The term greenhouse gas shall mean the air pollutant defined in 40 CFR 86.1818-12(a) as the aggregate group of six greenhouse gases: Carbon dioxide, nitrous oxide, methane, hydrofluorocarbons, perfluorocarbons, and sulfur hexafluoride.(ii) The term tpy CO2 equivalent emissions (CO2e) shall represent an amount of GHGs emitted, and shall be computed as follows: (A) Multiplying the mass amount of emissions (tpy), for each of the six greenhouse gases in the pollutant GHGs, by the gas's associated global warming potential published at Table A-1 to subpart A of 40 CFR part 98 -Global Warming Potentials.(B) Sum the resultant value from paragraph (b)(4)(ii)(A) of this section for each gas to compute a tpy CO2e.(iii) The term emissions increase shall mean that both a significant emissions increase (as calculated using the procedures in the EPA-approved Northern Sonoma County Air Pollution Control District rules at R1-1-130(s2)) and a significant net emissions increase (as defined in the Northern Sonoma County Air Pollution Control District rules at R1-1-130(n1)) occur. For the pollutant GHGs, an emissions increase shall be based on tpy CO2e, and shall be calculated assuming the pollutant GHGs is a regulated NSR pollutant, and "significant" is defined as 75,000 tpy CO2e instead of applying the value in the EPA-approved Northern Sonoma County Air Pollution Control District rules at R1-1-130(s2).(h)(1) Insofar as the Prevention of Significant Deterioration (PSD) provisions found in Mendocino County Air Quality Management District's approved plan apply to stationary sources of greenhouse gas (GHGs) emissions, the Administrator approves that application only to the extent that GHGs are "subject to regulation", as provided in this paragraph (b), and the Administrator takes no action on that application to the extent that GHGs are not "subject to regulation."(2) Beginning January 2, 2011, the pollutant GHGs is subject to regulation if: (i) The stationary source is a new major stationary source for a regulated NSR pollutant that is not GHGs, and also will emit or will have the potential to emit 75,000 tpy CO2e or more; or(ii) The stationary source is an existing major stationary source for a regulated NSR pollutant that is not GHGs, and also will have an emissions increase of a regulated NSR pollutant, and an emissions increase of 75,000 tpy CO2e or more; and,(3) Beginning July 1, 2011, in addition to the provisions in paragraph (b)(2) of this section, the pollutant GHGs shall also be subject to regulation: (i) At a new stationary source that will emit or have the potential to emit 100,000 tpy CO2e; or(ii) At an existing stationary source that emits or has the potential to emit 100,000 tpy CO2e, when such stationary source undertakes a physical change or change in the method of operation that will result in an emissions increase of 75,000 tpy CO2e or more.(4) For purposes of this paragraph (b)- (i) The term greenhouse gas shall mean the air pollutant defined in 40 CFR 86.1818-12(a) as the aggregate group of six greenhouse gases: Carbon dioxide, nitrous oxide, methane, hydrofluorocarbons, perfluorocarbons, and sulfur hexafluoride.(ii) The term tpy CO2 equivalent emissions (CO2e) shall represent an amount of GHGs emitted, and shall be computed as follows: (A) Multiplying the mass amount of emissions (tpy), for each of the six greenhouse gases in the pollutant GHGs, by the gas's associated global warming potential published at Table A-1 to subpart A of 40 CFR part 98 -Global Warming Potentials.(B) Sum the resultant value from paragraph (b)(4)(ii)(A) of this section for each gas to compute a tpy CO2e.(iii) The term emissions increase shall mean that both a significant emissions increase (as calculated using the procedures in the EPA-approved Mendocino County Air Quality Management District rules at R1-1-130(s2)) and a significant net emissions increase (as defined in the Mendocino County Air Quality Management District rules at R1-1-130(m1) (1982)) occur. For the pollutant GHGs, an emissions increase shall be based on tpy CO2e, and shall be calculated assuming the pollutant GHGs is a regulated NSR pollutant, and "significant" is defined as 75,000 tpy CO2e instead of applying the value in the EPA-approved Mendocino County Air Quality Management District rules at R1-1-130(s2).(i)1997 ozone NAAQS: The 2007 Infrastructure SIP, submitted on November 16, 2007, and the 2014 Multi-pollutant Infrastructure SIP, submitted on March 6, 2014, are partially disapproved for specific requirements of Clean Air Act section 110(a)(2) for the 1997 8-hour ozone NAAQS for the Air Pollution Control Districts (APCDs), Air Quality Management Districts (AQMDs), or Air Quality Control Regions (AQCRs) listed in this paragraph.(3) North Coast Unified AQMD (PSD requirements for the regulation of PM2.5, PM2.5 precursors, condensable PM2.5, PM2.5 increments, and NOX as an ozone precursor, only) for sections 110(a)(2)(C), (D)(i)(II) (interfere with measures in any other state to prevent significant deterioration of air quality, only), and (J).(5) All areas in California that are subject to the Federal PSD program as provided in 40 CFR 52.270 for sections 110(a)(2)(C), (D)(i)(II) (interfere with measures in any other state to prevent significant deterioration of air quality, only), and (J), except for South Coast AQMD where the Federal PSD program applies to greenhouse gases, only.(6) All areas in California that are subject to the Federal PSD program as provided in 40 CFR 52.270 for sections 110(a)(2)(D)(ii) (with respect to section 126(a), only).(j)1997 PM2.5NAAQS: The 2007 Infrastructure SIP, submitted on November 16, 2007, and the 2014 Multi-pollutant Infrastructure SIP, submitted on March 6, 2014, are partially disapproved for specific requirements of Clean Air Act section 110(a)(2) for the 1997 PM2.5 NAAQS for the Air Pollution Control Districts (APCDs), Air Quality Management Districts (AQMDs), or Air Quality Control Regions (AQCRs) listed in this paragraph. (2) North Coast Unified AQMD (PSD requirements for the regulation of PM2.5, PM2.5 precursors, condensable PM2.5, PM2.5 increments, and NOX as an ozone precursor, only) for sections 110(a)(2)(C), (D)(i)(II) (interfere with measures in any other state to prevent significant deterioration of air quality, only), and (J).(4) All areas in California that are subject to the Federal PSD program as provided in 40 CFR 52.270 for sections 110(a)(2)(C), (D)(i)(II) (interfere with measures in any other state to prevent significant deterioration of air quality, only), and (J), except for South Coast AQMD where the Federal PSD program applies to greenhouse gases, only.(5) All areas in California that are subject to the Federal PSD program as provided in 40 CFR 52.270 for sections 110(a)(2)(D)(ii) (with respect to section 126(a), only).(6) San Joaquin Valley Mountain Counties AQCR for section 110(a)(2)(G).(k)2006 PM2.5NAAQS and 2012 PM2.5NAAQS: The 2014 Multi-pollutant Infrastructure SIP, submitted on March 6, 2014, is partially disapproved for specific requirements of Clean Air Act section 110(a)(2) for the 2006 PM2.5 NAAQS and 2012 PM2.5 NAAQS for the Air Pollution Control Districts (APCDs), Air Quality Management Districts (AQMDs), or Air Quality Control Regions (AQCRs) listed in this paragraph.(2) North Coast Unified AQMD (PSD requirements for the regulation of PM2.5, PM2.5 precursors, condensable PM2.5, PM2.5 increments, and NOX as an ozone precursor, only) for sections 110(a)(2)(C), (D)(i)(II) (interfere with measures in any other state to prevent significant deterioration of air quality, only), and (J).(4) All areas in California that are subject to the Federal PSD program as provided in 40 CFR 52.270 for sections 110(a)(2)(C), (D)(i)(II) (interfere with measures in any other state to prevent significant deterioration of air quality, only), and (J), except for South Coast AQMD where the Federal PSD program applies to greenhouse gases, only.(5) All areas in California that are subject to the Federal PSD program as provided in 40 CFR 52.270 for sections 110(a)(2)(D)(ii) (with respect to section 126(a), only).(6) San Joaquin Valley Mountain Counties AQCR for section 110(a)(2)(G).(l)2008 ozone NAAQS: The 2014 Multi-pollutant Infrastructure SIP, submitted on March 6, 2014, is partially disapproved for specific requirements of Clean Air Act section 110(a)(2) for the 2008 8-hour ozone NAAQS for the Air Pollution Control Districts (APCDs), Air Quality Management Districts (AQMDs), or Air Quality Control Regions (AQCRs) listed in this paragraph. (3) North Coast Unified AQMD (PSD requirements for the regulation of PM2.5, PM2.5 precursors, condensable PM2.5, PM2.5 PSD, and NOX as an ozone precursor, only) for sections 110(a)(2)(C), (D)(i)(II) (interfere with measures in any other state to prevent significant deterioration of air quality, only), and (J).(5) All areas in California that are subject to the Federal PSD program as provided in 40 CFR 52.270 for sections 110(a)(2)(C), (D)(i)(II) (interfere with measures in any other state to prevent significant deterioration of air quality, only), and (J), except for South Coast AQMD where the Federal PSD program applies to greenhouse gases, only.(6) All areas in California that are subject to the Federal PSD program as provided in 40 CFR 52.270 for sections 110(a)(2)(D)(ii) (with respect to section 126(a), only).(m)2008 Pb NAAQS: The 2011 Pb Infrastructure SIP, submitted on September 22, 2011, and the 2014 Multi-pollutant Infrastructure SIP, submitted on March 6, 2014, are partially disapproved for specific requirements of Clean Air Act section 110(a)(2) for the 2008 Pb NAAQS for the Air Pollution Control Districts (APCDs), Air Quality Management Districts (AQMDs), or Air Quality Control Regions (AQCRs) listed in this paragraph.(2) North Coast Unified AQMD (PSD requirements for the regulation of PM2.5, PM2.5 precursors, condensable PM2.5, PM2.5 increments, and NOX as an ozone precursor, only) for sections 110(a)(2)(C), (D)(i)(II) (interfere with measures in any other state to prevent significant deterioration of air quality, only), and (J).(4) All areas in California that are subject to the Federal PSD program as provided in 40 CFR 52.270 for sections 110(a)(2)(C), (D)(i)(II) (interfere with measures in any other state to prevent significant deterioration of air quality, only), and (J), except for South Coast AQMD where the Federal PSD program applies to greenhouse gases, only.(5) All areas in California that are subject to the Federal PSD program as provided in 40 CFR 52.270 for sections 110(a)(2)(D)(ii) (with respect to section 126(a), only).(n)2010 NO2NAAQS: The 2012 NO2 Infrastructure SIP, submitted on November 15, 2012, and the 2014 Multi-pollutant Infrastructure SIP, submitted on March 6, 2014, are partially disapproved for specific requirements of Clean Air Act section 110(a)(2) for the 2010 NO2 NAAQS for the Air Pollution Control Districts (APCDs), Air Quality Management Districts (AQMDs), or Air Quality Control Regions (AQCRs) listed in this paragraph. (2) North Coast Unified AQMD (PSD requirements for the regulation of PM2.5, PM2.5 precursors, condensable PM2.5, PM2.5 increments, and NOX as an ozone precursor, only) for sections 110(a)(2)(C), (D)(i)(II) (interfere with measures in any other state to prevent significant deterioration of air quality, only), and (J).(4) All areas in California that are subject to the Federal PSD program as provided in 40 CFR 52.270 for sections 110(a)(2)(C), (D)(i)(II) (interfere with measures in any other state to prevent significant deterioration of air quality, only), and (J), except for South Coast AQMD where the Federal PSD program applies to greenhouse gases, only.(5) All areas in California that are subject to the Federal PSD program as provided in 40 CFR 52.270 for sections 110(a)(2)(D)(ii) (with respect to section 126(a), only).(o)2010 SO2NAAQS: The 2014 Multi-pollutant Infrastructure SIP, submitted on March 6, 2014, is partially disapproved for specific requirements of Clean Air Act section 110(a)(2) for the 2010 SO2 NAAQS for the Air Pollution Control Districts (APCDs), Air Quality Management Districts (AQMDs), or Air Quality Control Regions (AQCRs) listed in this paragraph. (2) North Coast Unified AQMD (PSD requirements for the regulation of PM2.5, PM2.5 precursors, condensable PM2.5, PM2.5 increments, and NOX as an ozone precursor, only) for sections 110(a)(2)(C), (D)(i)(II) (interfere with measures in any other state to prevent significant deterioration of air quality, only), and (J).(4) All areas in California that are subject to the Federal PSD program as provided in 40 CFR 52.270 for sections 110(a)(2)(C), (D)(i)(II) (interfere with measures in any other state to prevent significant deterioration of air quality, only), and (J), except for South Coast AQMD where the Federal PSD program applies to greenhouse gases, only.(5) All areas in California that are subject to the Federal PSD program as provided in 40 CFR 52.270 for sections 110(a)(2)(D)(ii) (with respect to section 126(a), only).(p)2015 ozone NAAQS: The 2018 Infrastructure SIP, submitted on October 1, 2018, is partially disapproved for specific requirements of Clean Air Act section 110(a)(2) for the 2015 8-hour ozone NAAQS for the air pollution control districts (APCDs), air quality management districts (AQMDs), or air quality control regions (AQCRs) listed in this paragraph. (1) Mendocino County AQMD (for sources subject to a FIP, including cogeneration and resource recovery projects, projects with stack heights greater than 65 meters or that use "dispersion techniques" as defined in 51.100 (which are major sources or major modifications under 52.21), and sources for which the EPA has issued permits under 52.21 for which applications were received by July 31, 1985, only) for sections 110(a)(2)(C), (D)(i)(II) (interfere with measures in any other state to prevent significant deterioration of air quality, only), and (J).(2) North Coast Unified AQMD (PSD requirements for the regulation of PM2.5, PM2.5 precursors, condensable PM2.5, PM2.5 increments, and NOX as an ozone precursor, only) for sections 110(a)(2)(C), (D)(i)(II) (interfere with measures in any other state to prevent significant deterioration of air quality, only), and (J).(3) Northern Sonoma County APCD (for sources subject to a FIP, including cogeneration and resource recovery projects, projects with stack heights greater than 65 meters or that use "dispersion techniques" as defined in 51.100 (which are major sources or major modifications under 52.21), and sources for which the EPA has issued permits under 52.21 for which applications were received by July 31, 1985, only) for sections 110(a)(2)(C), (D)(i)(II) (interfere with measures in any other state to prevent significant deterioration of air quality, only), and (J).(4) Sacramento Metro AQMD (for sources subject to a FIP, including cogeneration and resource recovery projects, projects with stack heights greater than 65 meters or that use "dispersion techniques" as defined in 51.100 (which are major sources or major modifications under 52.21), and sources for which the EPA has issued permits under 52.21 for which applications were received by July 31, 1985, only) for sections 110(a)(2)(C), (D)(i)(II) (interfere with measures in any other state to prevent significant deterioration of air quality, only), and (J).(5) All areas in California that are subject to the federal PSD program as provided in 40 CFR 52.270 for sections 110(a)(2)(C), (D)(i)(II) (interfere with measures in any other state to prevent significant deterioration of air quality, only), and (J), except for South Coast AQMD where the federal PSD program applies to all pollutants except greenhouse gases.(6) All areas in California that are subject to the federal PSD program as provided in 40 CFR 52.270 for sections 110(a)(2)(D)(ii) (with respect to section 126(a), only).(7) The interstate transport requirements for Significant Contribution to Nonattainment (Prong 1) and Interstate Transport-Interference with Maintenance (Prong 2) of Clean Air Act (CAA) section 110(a)(2)(D)(i)(I).45 FR 74484, Nov. 11, 1980 81 FR 18777, 4/1/2016; 81 FR 69392, 11/7/2016; 82 FR 30772, 8/2/2017; 82 FR 47147, 11/13/2017; 86 FR 16537, 4/29/2021; 88 FR 9381, 3/15/2023 For FEDERAL REGISTER citations affecting § 52.223 , see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at www.govinfo.gov.