40 CFR 52.1870 - Identification of plan.

Regulations last checked for updates: Nov 04, 2026

Title 40 - Protection of Environment last revised: Nov 02, 2026

View all text of Subpart KK [§ 52.1870 - § 52.1894]

§ 52.1870 - Identification of plan.

(a) Purpose and scope. This section sets forth the applicable State Implementation Plan (SIP) for Ohio under Section 110 of the Clean Air Act, 42 U.S.C. 7401 et seq., and 40 CFR part 51 to meet National Ambient Air Quality Standards.

(b) Incorporation by reference. (1) Material listed in paragraphs (c) and (d) of this section with an EPA approval date prior to September 1, 2015, was approved for incorporation by reference by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Material is incorporated as it exists on the date of the approval, and notice of any change in the material will be published in the Federal Register. Entries in paragraphs (c) and (d) of this section with an EPA approval date after September 1, 2015, will be incorporated by reference in the next update to the SIP compilation.

(2) EPA Region 5 certifies that the rules/regulations provided by EPA in the SIP compilation at the addresses in paragraph (b)(3) of this section are an exact duplicate of the officially promulgated state rules/regulations which have been approved as part of the SIP as of September 1, 2015.

(3) Copies of the materials incorporated by reference may be inspected at the Environmental Protection Agency, Region 5, Air Programs Branch, 77 West Jackson Boulevard, Chicago, IL 60604 or the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call (202) 741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html.

EPA-Approved Ohio Regulations

Ohio citation	Title/Subject	Ohio effective date	EPA Approval date	Notes
Chapter 3745-14 Nitrogen Oxides—Reasonably Available Control Technology
3745-14-01	Definitions and General Provisions	8/15/2024	5/8/2025, 90 FR 19428
3745-14-03	Permit Requirements	1/29/2018	9/17/2019, 84 FR 48789
3745-14-04	Compliance Certification	8/22/2019	4/8/2020, 85 FR 19670
3745-14-08	Monitoring and Reporting	8/15/2024	5/8/2025, 90 FR 19428
3745-14-11	Portland Cement Kilns	7/18/2002	8/5/2003, 68 FR 46089
3745-14-12	Stationary Internal Combustion Engines	5/7/2005	2/4/2008, 73 FR 6427
Chapter 3745-15 General Provisions on Air Pollution Control
3745-15-01	Definitions	1/22/2009	5/10/2010, 75 FR 25770
3745-15-02	Purpose	1/25/1980	10/1/1982, 47 FR 43375
3745-15-03	Submission of Emission Information	6/30/2008	2/20/2013, 78 FR 11748	Only (A).
3745-15-04	Measurement of Emissions of Air Contaminants	1/25/1980	10/1/1982, 47 FR 43375
3745-15-05	De Minimis Air Contaminant Source Exemption	1/22/2009	5/10/2010, 75 FR 25770
3745-15-06	Malfunction of Equipment; Scheduled Maintenance; Reporting	1/25/1980	10/1/1982, 47 FR 43375
3745-15-07	Air Pollution Nuisances Prohibited	5/17/1982	8/13/1984, 49 FR 32182
3745-15-08	Circumvention	1/25/1980	10/1/1982, 47 FR 43375
3745-15-09	Severability	1/25/1980	10/1/1982, 47 FR 43375
Chapter 3745-16 Stack Height Requirements
3745-16-01	Definitions	3/5/1986	8/25/1988, 53 FR 32392
3745-16-02	Good Engineering Practice Stack Height Requirements	3/5/1986	8/25/1988, 53 FR 32392
Chapter 3745-17 Particulate Matter Standards
3745-17-01	Definitions and Referenced Materials	8/25/2023	7/18/2024, 89 FR 58293
3745-17-03	Measurement Methods and Procedures	8/25/2023	7/18/2024, 89 FR 58293	Except for paragraph (B)(1)(b) and the phrase in paragraph (B)(1)(a) reading “Except as provided in paragraph (B)(1)(b) of this rule”.
3745-17-04	Compliance Time Schedules	8/25/2023	7/18/2024, 89 FR 58293
3745-17-07	Control of Visible Particulate Emissions from Stationary Sources	8/25/2023	7/18/2024, 89 FR 58293
3745-17-08	Restriction of Emission of Fugitive Dust	8/25/2023	7/18/2024, 89 FR 58293
3745-17-09	Restrictions on Particulate Emissions and Odors from Incinerators	8/25/2023	7/18/2024, 89 FR 58293
3745-17-10	Restrictions on Particulate Emissions from Fuel Burning Equipment	8/25/2023	7/18/2024, 89 FR 58293
3745-17-11	Restrictions on Particulate Emissions from Industrial Processes	8/25/2023	7/18/2024, 89 FR 58293
3745-17-12	Additional Restrictions on Particulate Emissions from Specific Air Contaminant Sources in Cuyahoga County	8/25/2023	7/18/2024, 89 FR 58293
3745-17-13	Additional Restrictions on Particulate Emissions from Specific Air Contaminant Sources in Jefferson County	8/25/2023	7/18/2024, 89 FR 58293
3745-17-14	Contingency Plan Requirements for Cuyahoga and Jefferson Counties	8/25/2023	7/18/2024, 89 FR 58293
Chapter 3745-18 Sulfur Dioxide Regulations
3745-18-01	Definitions and incorporation by reference	2/3/2022	5/30/2023, 88 FR 34449
3745-18-02	General countywide emission limits	2/3/2022	5/30/2023, 88 FR 34449
3745-18-03	Compliance Time Schedules	2/3/2022	5/30/2023, 88 FR 34449
3745-18-04	Measurement Methods and Procedures	2/3/2022	5/30/2023, 88 FR 34449	Except (D)(2), (D)(3), (D)(5), (D)(6), (E)(2), (E)(3), and (E)(4).
3745-18-05	Ambient and Meteorological Monitoring Requirements	2/3/2022	5/30/2023, 88 FR 34449
3745-18-06	General Emission Limit Provisions	2/3/2022	5/30/2023, 88 FR 34449
3745-18-08	Allen county emission limits	2/3/2022	5/30/2023, 88 FR 34449
3745-18-10	Ashtabula county emissions limits	2/3/2022	5/30/2023, 88 FR 34449
3745-18-11	Athens county emission limits	2/3/2022	5/30/2023, 88 FR 34449
3745-18-15	Butler county emission limits	2/3/2022	5/30/2023, 88 FR 34449
3745-18-23	Crawford county emission limits	2/3/2022	5/30/2023, 88 FR 34449
3745-18-24	Cuyahoga county emission limits	2/3/2022	5/30/2023, 88 FR 34449
3745-18-26	Defiance county emission limits	2/3/2022	5/30/2023, 88 FR 34449
3745-18-28	Erie county emission limits	2/3/2022	5/30/2023, 88 FR 34449
3745-18-31	Franklin county emission limits	2/3/2022	5/30/2023, 88 FR 34449
3745-18-33	Gallia county emission limits	2/3/2022	5/30/2023, 88 FR 34449
3745-18-35	Greene county emission limits	2/3/2022	5/30/2023, 88 FR 34449
3745-18-37	Hamilton county emission limits	2/3/2022	5/30/2023, 88 FR 34449
3745-18-47	Jefferson county emission limits	2/3/2022	5/30/2023, 88 FR 34449
3745-18-49	Lake county emission limits	2/3/2022	5/30/2023, 88 FR 34449
3745-18-53	Lorain county emission limits	2/3/2022	5/30/2023, 88 FR 34449
3745-18-54	Lucas county emission limits	2/3/2022	5/30/2023, 88 FR 34449
3745-18-56	Mahoning county emission limits	2/3/2022	5/30/2023, 88 FR 34449
3745-18-61	Miami county emission limits	2/3/2022	5/30/2023, 88 FR 34449
3745-18-63	Montgomery county emission limits	2/3/2022	5/30/2023, 88 FR 34449
3745-18-66	Muskingum County Emission Limits	2/16/2017	10/11/2018, 83 FR 51361
3745-18-68	Ottawa county emission limits	2/3/2022	5/30/2023, 88 FR 34449
3745-18-69	Paulding county emission limits	2/3/2022	5/30/2023, 88 FR 34449
3745-18-77	Ross county emission limits	2/3/2022	5/30/2023, 88 FR 34449
3745-18-78	Sandusky county emission limits	2/3/2022	5/30/2023, 88 FR 34449
3745-18-80	Seneca county emission limits	2/3/2022	5/30/2023, 88 FR 34449
3745-18-82	Stark County Emission Limits	4/16/2023	10/7/2024, 89 FR 81008
3745-18-83	Summit County Emission Limits	2/3/2022	5/30/2023, 88 FR 34449
3745-18-84	Trumbull County Emission Limits	2/3/2022	5/30/2023, 88 FR 34449
3745-18-85	Tuscarawas County Emission Limits	2/3/2022	5/30/2023, 88 FR 34449
3745-18-90	Washington County Emission Limits	2/3/2022	5/30/2023, 88 FR 34449
3745-18-91	Wayne county emission limits	2/3/2022	5/30/2023, 88 FR 34449
3745-18-92	Williams county emission limits	2/3/2022	5/30/2023, 88 FR 34449
Chapter 3745-19 Open Burning Standards
3745-19-01	Definitions	4/30/2018	6/24/2019, 84 FR 29378
3745-19-02	Relations to Other Prohibitions	7/7/2006	3/21/2008, 73 FR 15081
3745-19-03	Open burning in restricted areas	4/30/2018	6/24/2019, 84 FR 29378
3745-19-04	Open burning in unrestricted areas	4/30/2018	6/24/2019, 84 FR 29378
3745-19-05	Permission to individuals and notification to the Ohio EPA	4/30/2018	6/24/2019, 84 FR 29378
Chapter 3745-21 Carbon Monoxide, Ozone, Hydrocarbon Air Quality Standards, and Related Emission Requirements
3745-21-01	Definitions and incorporation by reference	3/27/2022	1/20/2026, 90 FR 2308
3745-21-02	Ambient air quality standards and guidelines	8/25/2008	7/28/2009, 74 FR 37171
3745-21-03	Methods of ambient air quality measurement	10/15/2015	9/8/2017, 82 FR 42451
3745-21-04	Compliance time schedules	3/27/2022	1/20/2026, 90 FR 2308
3745-21-06	Classification of regions	8/25/2008	7/28/2009, 74 FR 37171	3745-21-06.
3745-21-07	Control of emissions of organic materials from stationary sources (i.e., emissions that are not regulated by rule 3745-21-09, 3745-21-12 to 3745-21-16, or 3745-21-18 to 3745-21-29 of the Administrative Code)	3/27/2022	1/20/2026, 90 FR 2308	All except the entry for “TRC Buyer Co. dba “The Ruscoe Company” Plant II” in table (M)(1) Emissions Units under OAC 3745-21-07(M)(1).
3745-21-08	Control of carbon monoxide emissions from stationary sources	10/15/2015	9/8/2017, 82 FR 42451	3745-21-08.
3745-21-09	Control of emissions of volatile organic compounds from stationary sources and perchloroethylene from dry cleaning facilities	3/27/2022	6/26/26, 91 FR 28521	Except 3745-21-09(PP).
3745-21-10	Compliance test methods and procedures	3/27/2022	1/20/2026, 90 FR 2308
3745-21-11	Reasonably available control technology studies for non-CTG Sources in ozone nonattainment areas	3/27/2022	1/20/2026, 90 FR 2308
3745-21-12	Control of volatile organic compound emissions from commercial bakery oven facilities	10/15/2015	9/8/2017, 82 FR 42451
3745-21-13	Control of volatile organic compound emissions from reactors and distillation units employed in SOCMI chemical production	10/15/2015	9/8/2017, 82 FR 42451
3745-21-14	Control of volatile organic compound emissions from process vents in batch operations	10/15/2015	9/8/2017, 82 FR 42451
3745-21-15	Control of volatile organic compound emissions from wood furniture manufacturing operations	3/27/2022	1/20/2026, 90 FR 2308
3745-21-16	Control of volatile organic compound emissions from industrial wastewater	10/15/2015	9/8/2017, 82 FR 42451
3745-21-17	Portable fuel containers	10/15/2015	9/8/2017, 82 FR 42451
3745-21-18	Commercial motor vehicle and mobile equipment refinishing operations	3/27/2022	1/20/2026, 90 FR 2308
3745-21-19	Control of volatile organic compound emissions from aerospace manufacturing and rework facilities	3/27/2022	1/20/2026, 90 FR 2308
3745-21-20	Control of volatile organic emissions from shipbuilding and ship repair operations (marine coatings)	3/27/2022	1/20/2026, 90 FR 2308
3745-21-21	Storage of volatile organic liquids in fixed roof tanks and external floating roof tanks	3/27/2022	1/20/2026, 90 FR 2308
3745-21-22	Control of volatile organic compound emissions from offset lithographic printing and letterpress printing facilities	3/27/2022	1/20/2026, 90 FR 2308
3745-21-23	Control of volatile organic compound emissions from industrial solvent cleaning operations	3/27/2022	1/20/2026, 90 FR 2308
3745-21-24	Flat wood paneling coatings	3/27/2022	1/20/2026, 90 FR 2308
3745-21-25	Control of VOC emissions from reinforced plastic composites production operations	3/27/2022	1/20/2026, 90 FR 2308
3745-21-26	Surface coating of miscellaneous metal and plastic parts	3/27/2022	1/20/2026, 90 FR 2308
3745-21-27	Boat manufacturing	3/27/2022	1/20/2026, 90 FR 2308
3745-21-28	Miscellaneous industrial adhesives and sealants	3/27/2022	1/20/2026, 90 FR 2308
3745-21-29	Control of volatile organic compound emissions from automobile and light-duty truck assembly coating operations, heavier vehicle assembly coating operations, and cleaning operations associated with these coating operations	3/27/2022	1/20/2026, 90 FR 2308
Chapter 3745-23 Nitrogen Oxide Standards
3745-23-01	Definitions	8/15/2024	12/30/2024, 89 FR 106330
3745-23-02	Methods of Measurement	8/15/2024	12/30/2024, 89 FR 106330
Chapter 3745-24 Nitrogen Oxide Emission Statements
3745-24-01	Definitions	12/16/2005	9/27/2007, 72 FR 54844
3745-24-02	Applicability	12/16/2005	9/27/2007, 72 FR 54844
3745-24-03	Deadlines for the Submission of the Emission Statements	12/16/2005	9/27/2007, 72 FR 54844
3745-24-04	Emission Statement Requirements	4/1/1994	10/13/1994, 59 FR 51863
Chapter 3745-25 Emergency Episode Standards
3745-25-01	Definitions and Reference to Materials	12/19/2024	11/26/2025, 90 FR 52436
3745-25-02	Ambient Air Quality Standards	12/19/2024	11/26/2025, 90 FR 52436	Except (A)(4).
3745-25-03	Air Pollution Emergencies and Episode Criteria	12/19/2024	11/26/2025, 90 FR 52436
3745-25-04	Air Pollution Emergency Emission Control Action Programs	7/7/2025	11/26/2025, 90 FR 52436
3745-25-05	Air Pollution Emergency Orders	12/19/2024	11/26/2025, 90 FR 52436
Chapter 3745-26 I/M Program Rules and Regulations
3745-26-01	Definitions	8/15/1996	1/6/1997, 62 FR 646
3745-26-02	Obligations of the Motor Vehicle Owner in the Anti-tampering and Basic Automobile Inspection and Maintenance Programs	6/13/1994	4/4/1995, 60 FR 16989
3745-26-03	Inspection Station Licensing Procedure	5/15/1990	12/17/1993, 58 FR 65933
3745-26-04	Licensed Inspection Station Requirements and Obligations	5/15/1990	12/17/1993, 58 FR 65933
3745-26-05	Provisions for Qualification as a Class B Inspection Station	5/15/1990	12/17/1993, 58 FR 65933
3745-26-06	Requirements for Certified Inspectors	5/15/1990	12/17/1993, 58 FR 65933
3745-26-07	Suspension or Revocation of Inspection Station License or Inspector Certification	5/15/1990	12/17/1993, 58 FR 65933
3745-26-08	Procedure for Station Change of Ownership, Name, or Location, or Cessation of Inspection Operation	5/15/1990	12/17/1993, 58 FR 65933
3745-26-09	Fee System	5/15/1990	12/17/1993, 58 FR 65933
3745-26-10	Requirements for Contractors in the Basic Enhanced or Opt-in Enhanced Automobile Inspection and Maintenance Program	6/13/1994	4/4/1995, 60 FR 16989
3745-26-11	Inspection Requirements	5/15/1990	12/17/1993, 58 FR 65933
3745-26-12	Requirements for Motor Vehicle Owners in the Enhanced or Opt-in Enhanced Automobile Inspection and Maintenance Program	8/15/1996	1/6/1997, 62 FR 646
3745-26-13	Requirements for Certified Inspectors in the Enhanced or Opt-in Enhanced Automobile Inspection and Maintenance Program	6/13/1994	4/4/1995, 60 FR 16989
3745-26-14	Enforcement of Program Rules and Regulations for the Enhanced or Opt-in Enhanced Automobile Inspection and Maintenance Program	6/13/1994	4/4/1995, 60 FR 16989
Chapter 3745-31 Permit-to-Install New Sources and Permit-to-Install and Operate Program
3745-31-01	Definitions	3/11/2023	4/2/2026, 91 FR 16550	Except for (A)(8), (E)(3)(b)(ii) and (iii), (M)(10)(a)(ii), (P)(12), (Q), and (S)(11).
3745-31-02	Applicability, requirements, and obligations	3/11/2023	4/2/2026, 91 FR 16550
3745-31-03	Exemptions	8/14/2025	4/2/2026, 91 FR 16550	Except for (B)(1)(p).
3745-31-04	Applications	5/29/2014	6/25/2015, 80 FR 36477
3745-31-05	Criteria for decision by the Director	3/11/2023	4/2/2026, 91 FR 16550	Except for (E).
3745-31-06	Completeness determinations, processing requirements, public participation, public notice, and issuance	3/11/2023	4/2/2026, 91 FR 16550
3745-31-07	Termination, revocation, expiration, renewal, revision and transfer	3/11/2023	4/2/2026, 91 FR 16550
3745-31-08	Registration status permit-to-operate	5/29/2014	6/25/2015, 80 FR 36477
3745-31-09	Variances on operation	3/11/2023	4/2/2026, 91 FR 16550
3745-31-10	NSR projects at existing emissions units at a major stationary source	3/11/2023	4/2/2026, 91 FR 16550
3745-31-11	Attainment provisions—ambient air increments, ceilings, and classifications	3/11/2023	4/2/2026, 91 FR 16550
3745-31-12	Attainment provisions—data submission requirements	3/11/2023	4/2/2026, 91 FR 16550
3745-31-13	Attainment provisions—review of major stationary sources and major modifications, stationary source applicability, and exemptions	3/11/2023	4/2/2026, 91 FR 16550	Except for (H)(1)(c).
3745-31-14	Attainment provisions—pre-application analysis	3/11/2023	4/2/2026, 91 FR 16550
3745-31-15	Attainment provisions—control technology review	3/11/2023	4/2/2026, 91 FR 16550
3745-31-16	Attainment provisions—major stationary source impact analysis	3/11/2023	4/2/2026, 91 FR 16550
3745-31-17	Attainment provisions—additional impact analysis	3/11/2023	4/2/2026, 91 FR 16550
3745-31-18	Attainment provisions—air quality models	3/11/2023	4/2/2026, 91 FR 16550
3745-31-19	Attainment provisions—notice to the United States environmental protection agency	3/11/2023	4/2/2026, 91 FR 16550
3745-31-20	Attainment provisions—innovative control technology	3/11/2023	4/2/2026, 91 FR 16550
3745-31-21	Nonattainment provisions—review of major stationary sources and major modifications—stationary source applicability and exemptions	3/11/2023	4/2/2026, 91 FR 16550
3745-31-22	Nonattainment provisions—conditions for approval	3/11/2023	4/2/2026, 91 FR 16550	Except for (A)(3)(b).
3745-31-23	Nonattainment provisions—stationary sources locating in designated clean or unclassifiable areas which would cause or contribute to a violation of a national ambient air quality standard	3/11/2023	4/2/2026, 91 FR 16550	Except for 1-hour NO2 SIL in (A).
3745-31-24	Nonattainment provisions—baseline for determining credit for emission and air quality offsets	3/11/2023	4/2/2026, 91 FR 16550	Except for (F).
3745-31-25	Nonattainment provisions—location of offsetting emissions	3/11/2023	4/2/2026, 91 FR 16550
3745-31-26	Nonattainment provisions—offset ratio requirements	3/11/2023	4/2/2026, 91 FR 16550	Except for (D).
3745-31-27	Nonattainment provisions—administrative procedures for emission offsets	3/11/2023	4/2/2026, 91 FR 16550	Except for (A)(1)(b).
3745-31-28	Review of major stationary sources of hazardous air pollutants requiring MACT determinations	3/11/2023	4/2/2026, 91 FR 16550
3745-31-29	General permit-to-install and general PTIO	3/11/2023	4/2/2026, 91 FR 16550
3745-31-30	Permits-by-rule	3/11/2023	4/2/2026, 91 FR 16550
3745-31-32	Plantwide applicability limit	3/11/2023	4/2/2026, 91 FR 16550
3745-31-34	Permits to install for major stationary sources and major modifications of sources emitting greenhouse gases	3/31/2011	2/14/2020, 85 FR 8406	Except for (B), (C), and (D).
Chapter 3745-49 Miscellaneous Rules
3745-49-01	Administrative Procedures—applicability and construction of rules	4/2/2012	4/23/2021, 86 FR 21648
3745-49-02	Administrative procedures—definitions	4/2/2012	4/23/2021, 86 FR 21648
3745-49-05	Draft actions and proposed actions	4/2/2012	4/23/2021, 86 FR 21648
3745-49-06	Issuance of final actions	4/2/2012	4/23/2021, 86 FR 21648
3745-49-07	Public notice	7/27/2019	4/23/2021, 86 FR 21648
3745-49-08	Contents of public notices	4/2/2012	4/23/2021, 86 FR 21648
Chapter 3745-101 Transportation Conformity
3745-101-02	Definitions	2/16/1999	5/30/2000, 65 FR 34395
3745-101-03	Applicability, Priority, and Frequency of Conformity Determinations	2/16/1999	5/30/2000, 65 FR 34395	Only (A), (B), (C), (D), (G), (H), (I), (J), (K), and (L).
3745-101-05	Content of Transportation Plans	2/16/1999	5/30/2000, 65 FR 34395
3745-101-06	Relationship with NEPA and Fiscal Constraints	2/16/1999	5/30/2000, 65 FR 34395
3745-101-07	Criteria and Procedures for Conformity Determination, Assumptions, Emissions Model, and Consultation	2/16/1999	5/30/2000, 65 FR 34395	Only (A), (B), and (C) Except (C)(1)(a) and (C)(2)(a).
3745-101-08	Criteria and Procedures for Implementation of TCMs, Current Conformity, and Projects from a Plan and TIP	2/16/1999	5/30/2000, 65 FR 34395
3745-101-09	Localized CO and PM10 Violations and Compliance with PM10 Control Measures	2/16/1999	5/30/2000, 65 FR 34395
3745-101-10	Motor Vehicle Emissions Budgets	2/16/1999	5/30/2000, 65 FR 34395
3745-101-11	Criteria and Procedures: Emission Reductions in Areas without Motor Vehicle Emissions Budgets	2/16/1999	5/30/2000, 65 FR 34395
3745-101-12	Consequences of Control Strategy Implementation Plan Failures	2/16/1999	5/30/2000, 65 FR 34395	Except for (A)(2).
3745-101-13	Requirements for Adoption or Approval of Projects by Other Recipients of Funds Designated Under Title 23 U.S.C. or the Federal Transit Laws	2/16/1999	5/30/2000, 65 FR 34395	Except for (A)(1).
3745-101-14	Procedures for Determining Regional Transportation-related Emissions	2/16/1999	5/30/2000, 65 FR 34395
3745-101-15	Procedures for Determining Localized CO and PM10 Concentrations (Hot-spot Analysis)	2/16/1999	5/30/2000, 65 FR 34395
3745-101-17	Enforceability of Design Concept and Scope and Project-level Mitigation and Control Measures	2/16/1999	5/30/2000, 65 FR 34395
3745-101-18	Exempt Projects	2/16/1999	5/30/2000, 65 FR 34395
3745-101-19	Traffic Signal Synchronization Projects	2/16/1999	5/30/2000, 65 FR 34395
Chapter 3745-102 General Federal Action Conformity
3745-102-01	Purpose	8/21/1995	3/11/1996, 61 FR 9644
3745-102-02	Definitions	8/21/1995	3/11/1996, 61 FR 9644
3745-102-03	Applicability	8/21/1995	3/11/1996, 61 FR 9644
3745-102-04	Analysis, Other Requirements	8/21/1995	3/11/1996, 61 FR 9644
3745-102-05	Conformity Determinations	8/21/1995	3/11/1996, 61 FR 9644
3745-102-06	Mitigation of Air Quality Impacts	8/21/1995	3/11/1996, 61 FR 9644
Chapter 3745-110—Nitrogen Oxides—Reasonably Available Control Technology
3745-110-01	Definitions	3/25/2022	1/20/2026, 90 FR 2308
3745-110-02	Applicability	3/25/2022	1/20/2026, 90 FR 2308
3745-110-03	RACT requirements and/or limitations for emissions of NOX from stationary sources	3/25/2022	1/20/2026, 90 FR 2308
3745-110-04	Compliance Deadlines	3/25/2022	1/20/2026, 90 FR 2308
3745-110-05	Compliance Methods	3/25/2022	1/20/2026, 90 FR 2308
Chapter 3745-112 Volatile Organic Compound Limits in Consumer Products
3745-112-01	Definitions	6/20/2022	7/10/2023, 88 FR 43440
3745-112-02	Applicability	6/20/2022	7/10/2023, 88 FR 43440
3745-112-03	Standards	6/20/2022	7/10/2023, 88 FR 43440
3745-112-04	Exemptions	6/20/2022	7/10/2023, 88 FR 43440
3745-112-05	Administrative Requirements	6/20/2022	7/10/2023, 88 FR 43440
3745-112-06	Reporting Requirements	6/20/2022	7/10/2023, 88 FR 43440
3745-112-07	Variances	6/20/2022	7/10/2023, 88 FR 43440
3745-112-08	Test Methods	6/20/2022	7/10/2023, 88 FR 43440

(d) EPA approved state source-specific requirements.

EPA-Approved Ohio Source-Specific Provisions

Name of source	Number	Ohio effective date	EPA Approval date	Comments
Accel Group, Inc	P0120345	9/16/2019	10/30/2020, 85 FR 68758	Only paragraphs B.4, B.6, B.8, B.9.c), C.1.b)(1)d, C.1.b)(2)a, C.1.d)(2), C.1.d)(3), C.1.e)(3), C.1.f)(1)c, C.2.b)(1)d, C.2.b)(2)a, C.2.d)(2), C.2.d)(3), C.2.e)(3), and C.2.f)(1)e.
AK Steel Corporation	Director's Final Findings and Orders (DFFO)	8/18/1995	4/25/1996, 61 FR 18255
Akron Paint and Varnish	P0136483	12/11/2024	6/26/26, 91 FR 28521	Only sections B.8., C.3.b)(1)b., C.3.c)(1), C.3.d)(4), C.3.e)(4), C.3.f)(2), C.4.b)(1)c., C.4.c)(1), C.4.d)(1), C.4.e)(6), C.4.f)(2), C.5.b)(1)c., C.5.c)(1), C.5.d)(1), C.5.e)(6), and C.5.f)(2).
Cardinal Power Plant	DFFO	7/26/2024	7/8/2025, 90 FR 29993	Regional haze emission limit.
Carmeuse Lime, Inc.-Grand River Operations	P0137844	7/10/2025	6/26/26, 91 FR 28521	Only sections B.3.through B.7., C.1.b)(1)b., C.1.c)(1), C.1.d)(1), C.1.e)(1), C.1.f)(1)a., C.2.b)(1)b., C.2.c)(1), C.2.d)(1), C.2.e)(1), and C.2.f)(1)a.
Carmeuse Lime, Inc. Maple Grove	DFFO	11/8/2024	12/11/2025, 90 FR 57374
Cleveland-Cliffs Cleveland Works	P0138035	11/13/2025	6/26/2026, 91 FR 38517	Only sections C.1.b)(1)e., C.1.b)(2)a., C.1.d)(2), C.1.d)(3), C.1.d)(4), C.1.e)(2), C.1.e)(3), C.1.e)(5), C.1.f)(1)d., C.1.f)(1)f., and C.1.f)(2).
Cleveland-Cliffs Cleveland Works	P0138036	11/13/2025	6/26/2026, 91 FR 38517	Only sections C.1.b)(1)i., C.1.b)(1) j., C.1.b)(1) k., C.1.b)(2)g., C.1.b)(2)h., C.1.d)(6)., C.1.d)(7)., C.1.e)(6), and C.1.f)(1)g.
Cleveland-Cliffs Cleveland Works	P0138136	11/13/2025	6/26/2026, 91 FR 38517	Only sections B.11., C.1.b)(1)g., C.1.d)(7), C.1.e)(5), C.2.b)(1)g, C.2.d)(9), C.2.e)(6), C.3.b)(1)e., C.3.d)(4), C.3.e)(4), C.4.b)(1)f., C.4.d)(9), C.4.e)(6), C.5.b)(1)d., C.5.b)(1)e., C.5.b)(1)f., C.5.b)(2)d., C.5.d)(4), C.5.d)(5), C.5.e)(4), C.5.e)(5), C.5.e)(6), C.5.f)(1)e., C.6.b)(1)d., C.6.b)(1)e., C.6.b)(1)f., C.6.b)(2)d, C.6.d)(3), C.6.e)(4), C.6.f)(1)b, C.7.b)(1)h., C.7.b)(1)i., C.7.b)(1)j., C.7.b)(2)f., C.7.d)(5), C.7.d)(6), C.7.d)(7), C.7.e)(6), C.7.e)(7), C.7.f)(1)e., C.8.b)(1)e., C.8.b)(1)f., C.8.b)(1)g., C.8.b)(2)e., C.8.d)(2), C.8.d)(3), C.8.e)(4), C.8.e)(5), C.8.f)(1)d., C.9.b)(1)e., C.9.b)(1)f., C.9.b)(2)f., C.9.d)(3), C.9.e)(4), and C.9.f)(1)e.
Cleveland-Cliffs Cleveland Works	P0138521	11/13/2025	6/26/2026, 91 FR 38517	Only sections C.1.b)(1)e., C.1.b)(1)f., C.1.b)(2)c., and C.1.f)(1).
Excello Specialty	PTI 13-2396	12/11/1991	4/25/1996, 61 FR 18255
Ford-Cleveland Casting	DFFO	7/10/1995	5/6/1996, 61 FR 20139
Ford-Engine Plant 1	DFFO	5/31/1996	2/25/1997, 62 FR 8383
Forest City Technologies, Plant 4	P0127984	6/23/2020	12/5/2023, 88 FR 84241	Only paragraphs C.1.b)(1)e., C.1.d)(3), C.1.e)(1)c., C.1.f)(1)d., C.2.b)(1)e., C.2.d)(4), C.2.e)(3)b., and C.2.f)(1)d.
General Electric Aviation, Evendale Plant	P0136500	1/30/2025	6/26/26, 91 FR 28521	Only sections B.2., C.1.b)(1)c., C.1.b)(2)a., C.1.c)(1), C.1.d)(1), C.1.e)(2).
General Electric Aviation, Evendale Plant	P0136501	1/30/2025	6/26/26, 91 FR 28521	Only sections B.2., C.1.b)(1)f., C.1.c)(2), C.1.d)(2), C.1.e)(3), C.2.b)(1)f., C.2.c)(2), C.2.d)(2), and C.2.e)(3).
General James M. Gavin Power Plant	DFFO	7/26/2024	7/8/2025, 90 FR 29993	Regional haze emission limit. ROW>	Globe Metallurgical Inc	DFFOs	3/26/2025	4/2/2026, 91 FR 16558
Henkel	P0138691	11/18/2025	6/26/2026, 91 FR 38517	Only sections B.4., C.1.b)(1).g., C.1.c)(2), C.1.d)(5), C.1.e)(7), C.1.f)(2), C.2.b)(1)f., C.2.c)(2), C.2.d)(6), C.2.e)(7), C.2.f)(2), C.3.b)(1)g., C.3.c)(2), C.3.d)(5), C.3.e)(7), C.3.f)(2), C.4.b)(1)g., C.4.c)(4), C.4.d)(5), C.4.e)(6), C.4.f)(2), C.5.b)(1)j., C.5.c)(3), C.5.d)(6), C.5.e)(9), C.5.f)(2), C.6.b)(1)d., C.6.c)(2), C.6.d)(2), C.6.e)(4), C.6.f)(3), C.7.b)(1)d., C.7.c)(2), C.7.d)(2), C.7.e)(4), and C.7.f)(3).
Hilton Davis	PTI 14-2096	6/12/1991	4/25/1996, 61 FR 18255
International Mill Services	DFFO	7/12/1995	5/6/1996, 61 FR 20139
International Paper Company	DFFO	8/18/1995	4/25/1996, 61 FR 18255
Lubrizol	P0138405	10/1/2025	6/26/2026, 91 FR 38517	Only sections B.2, B.3., B.4., B.5., C.1.b)(1)b., C.1.b)(2)a., C.1.d)(1), C.1.e)(1), and C.1.f)(2).
Luria Brothers	DFFO	7/10/1995	5/6/1996, 61 FR 20139
Midwest Mica & Insulation Co	DFFO	8/18/1995	4/25/1996, 61 FR 18255
Morgan Adhesives Co	DFFO	7/5/2000	4/17/2001, 74 FR 19721
Ohio Valley Electric Corp.—Kyger Creek Station	DFFO	7/26/2024	7/8/2025, 90 FR 29993	Regional haze emission limits.
Owens Corning	P0137247	1/6/2025	6/26/26, 91 FR 28521	Only sections B.11., B.12., B.13., B.14., C.1.b)(1)b., C.1.c)(1), C.1.d)(1), C.1.e)(2), C.2.b)(1)b., C.2.c)(1), C.2.d)(1), C.2.e)(2), C.3.b)(1)b., C.3.c)(1), C.3.d)(1), C.3.e)(2), C.4.b)(1)b., C.4.c)(1), C.4.d)(1), C.4.e)(2), C.5.b)(1)b., C.5.c)(1), C.5.d)(3), C.5.e)(2), C.6.b)(1)c., C.6.d)(1), C.6.e)(2), C.6.f)(3), C.7.b)(1)b.), C.7.d)(1), C.7.e)(2), C.7.f)(2), C.8.b)(1)b., C.8.c)(1), C.8.d)(1), C.8.e)(2), C.9.b)(1)c., C.9.c)(1), C.9.d)(1), C.9.e)(2), C.10.b)(1)b., C.10.d)(1), C.10.e)(2), and C.10.f)(2).
P.H. Glatfelter Co.—Chillicothe	P0118907	07/20/15	03/04/16, 81 FR 11447	Regional haze BART emissions limits.
RFD Beaufort, Inc	P0127562	3/25/2025	3/23/2026, 91 FR 13773	Only paragraphs C.1.b)(1)c. and C.1.b)(2)c.
Reilly Industries, Inc	DFFO	8/18/1995	4/25/1996, 61 FR 18255
Ross Incineration	P0137637	7/31/2025	6/26/26, 91 FR 28521	Only sections C.1.b)(1)k., C.1.b)(1)l., C.1.b)(2)k., C.1.b)(2)l., C.1.c)(19), C.1.d)(54), C.1.e)(20), C.1.f)(1)f.
Smallwood	P0130909	11/10/2021	1/20/2026, 90 FR 2308	Only sections C.1.b)(1)e., C.1.b)(2)b., C.1.c)(3), C.1.d)(7) and C.1.e)(5).
Sprayon Products, Inc	DFFO	8/18/1995	4/25/1996, 61 FR 18255
T&B Foundry Company	DFFO	7/10/1995	5/6/1996, 61 FR 20139
Tyson Foods	P0137384	6/11/2025	6/26/26, 91 FR 28521	Only sections B.3., C.1.(b)(1)d., C.1.c)(3), C.1.d)(4), C.1.e)(3), C.1.f)(3), C.2.b)(1)d., C.2.c)(3), C.2.d)(4), C.2.e)(3), C.2.f)(3), C.3.b)(1)d., C.3.c)(2), C.3.d)(5), C.3.e)(3), C.3.f)(3), C.4.b)(1)d., C.4.c)(3), C.4.d)(5), C.4.e)(3), C.4.f)(3), C.5.b)(1)d., C.5.c)(3), C.5.d)(5), C.5.e)(3), C.5.f)(2)b. [that follows C.5.f)(2)h.] C.6.b)(1)d., C.6.c)(3), C.6.d)(4), C.6.e)(3), C.6.f)(3), C.7.b)(1)d., C.7.c)(3), C.7.d)(4), C.7.e)(3), and C.7.f)(3).
United Ready Mix	DFFO	7/10/1995	5/6/1996, 61 FR 20139
Valgroup	P0133504	7/18/2023	4/17/2025, 90 FR 16088	Only paragraphs C.2.b)(1), C.2.b)(1)d., C.2.b)(2), C.2.b)(2)d., C.2.d), C.2.d)(1), C.2.e), and C.2.e)(2).
Wheeling-Pittsburg Steel Corporation	DFFO	10/31/1995	6/12/1996, 61 FR 29662

(e) EPA approved nonregulatory and quasi-regulatory provisions.

EPA-Approved Ohio Nonregulatory and Quasi-Regulatory Provisions

Title	Applicable geographical or non-attainment area	State date	EPA approval	Comments
Legislative Provisions
Authority to Require NSR Permits	Statewide		1/25/1982	ORC 3704.03 (F).
Local Permits for Burning Construction Debris	Statewide		7/15/1985	ORC 3704.11 (C).
Ohio EPA Authority	Statewide		1/25/1982	ORC 3704 (summary).
Requirements for Board Members	Statewide		1/25/1982	ORC 102 (summary).
Definition of Air Contaminant	Statewide			ORC 3704.01 (B); submitted 8/26/1982.
2015 Ozone Clean Data Determination	Cleveland area (Cuyahoga, Geauga, Lake, Lorain, Medina, Portage, Summit Counties)	N/A	5/14/2026, 91 FR 27211	EPA's final determination suspends requirements for Ohio EPA to submit an attainment demonstration and other associated nonattainment planning requirements for the Cleveland area for as long as the area continues to attain the 2015 ozone NAAQS.
Summary of Criteria Pollutant Attainment Plans
Lead (2008)	Canton (partial Stark County)	9/19/2024	7/16/2026, 91 FR 43557	Includes approval of the 2020 lead base year emissions inventory.
Ozone (8-Hour, 2015)	Cincinnati	7/24/2020	3/3/2021, 86 FR 12270	EPA is approving only the 2014 base year emissions inventory and emissions statement elements.
Ozone (8-Hour, 2015)	Cleveland	12/21/2022	7/7/2025, 90 FR 29742	EPA is approving only the 2017 base year emissions inventory, the reasonable further progress demonstration including associated 2023 motor vehicle emissions budgets, I/M, and nonattainment new source review.
PM2.5 (2012)	Cleveland	10/14/2016	9/6/2018, 83 FR 45193	EPA is approving the following elements: the base year 2011 emissions inventory; the demonstration of attainment for 2021; current controls as meeting RACM requirements.
SO2 (2010)	Lake County	2/16/2017	2/14/2019, 84 FR 3986	EPA is approving the following plan elements: The emission inventory; the demonstration of attainment; and revised emission limits as meeting RACM requirements.
SO2 (2010)	Muskingum River	5/24/2023	9/8/2023, 88 FR 61969
SO2 (2010)	Steubenville	6/25/2019	10/22/2019, 84 FR 56385
Summary of Criteria Pollutant Maintenance Plan
Ozone 1-Hour	Cincinnati (Butler, Clermont, Hamilton, and Warren Counties)	6/28/1999	7/5/2000, 65 FR 37879
Ozone 1-Hour	Columbiana County	3/25/1994	3/10/1995, 59 FR 48395
Ozone 1-Hour	Columbus (Franklin, Delaware and Licking Counties)	1/1/1994	4/1/1996, 61 FR 3591
Ozone 1-Hour	Dayton-Springfield (Miami, Montgomery, Clark, and Greene Counties)	11/8/1993	7/5/1995, 60 FR 22289
Ozone 1-Hour	Jefferson County	3/25/1994	3/10/1995, 58 FR 66334
Ozone 1-Hour	Youngstown (Mahoning and Trumbull Counties) and Canton (Stark County)	3/25/1994	4/1/1996, 61 FR 3319
Ozone (8-Hour, 1997)	Canton (Stark County)	4/12/2019	11/19/2019, 84 FR 63806
Ozone (8-Hour, 1997)	Cincinnati (Butler, Clermont, Clinton, Hamilton, and Warren Counties)	12/14/2009	5/11/2010, 75 FR 26118
Ozone (8-Hour, 1997)	Cleveland (Ashtabula, Cuyahoga, Geauga, Lake, Lorain, Medina, Portage, and Summit Counties)	3/17/2009	9/15/2009, 74 FR 47414
Ozone (8-Hour, 1997)	Columbus (Delaware, Fairfield, Franklin, Knox, Licking, and Madison Counties)	3/17/2009	9/15/2009, 74 FR 47404
Ozone (8-Hour, 1997)	Dayton-Springfield (Miami, Montgomery, Clark, and Greene Counties)	4/12/2019	10/1/2019, 84 FR 52001
Ozone (8-Hour, 1997)	Lima (Allen County)	4/12/2019	11/19/2019, 84 FR 63806
Ozone (8-Hour, 1997)	Parkersburg-Marietta (Washington County)	4/12/2019	11/19/2019, 84 FR 63806
Ozone (8-Hour, 1997)	Steubenville-Weirton (Jefferson County)	4/12/2019	11/19/2019, 84 FR 63806
Ozone (8-Hour, 1997)	Toledo (Lucas and Wood Counties)	4/12/2019	11/19/2019, 84 FR 63806
Ozone (8-Hour, 1997)	Wheeling (Belmont County)	4/12/2019	11/19/2019, 84 FR 63806
Ozone (8-Hour, 1997)	Youngstown (Columbiana, Mahoning and Trumbull Counties)	4/12/2019	11/19/2019, 84 FR 63806
Ozone (8-Hour, 2008)	Cincinnati (Butler, Clermont, Clinton, Hamilton, and Warren Counties)	11/6/2024	2/12/2026, 91 FR 6517	2nd maintenance plan. Conformity Budgets 2037 [tons/day] Ohio and Indiana: VOC 11.01; NOX 9.32
Ozone (8-Hour, 2008)	Cleveland-Akron-Lorain (Ashtabula, Cuyahoga, Geauga, Lake, Lorain, Medina, Portage, and Summit Counties)	11/6/2024	2/12/2026, 91 FR 6517	2nd maintenance plan. Conformity Budgets 2037 [tons/day] VOC 14.73; NOX 12.24
Ozone (8-Hour, 2008)	Columbus (Delaware, Fairfield, Franklin, Knox, Licking, and Madison Counties)	11/6/2024	2/12/2026, 91 FR 6517	2nd maintenance plan. Conformity Budgets 2036 [tons/day] VOC 13.74; NOX 7.59
Ozone (8-Hour, 2015)	Columbus (Delaware, Fairfield, Franklin, and Licking Counties	4/23/2019	8/21/2019, 84 FR 43508
Ozone (8-Hour, 2015)	Cincinnati (Butler, Clermont, Hamilton, and Warren Counties)	12/21/2021	6/9/2022, 87 FR 35104	EPA is approving the following elements: a determination that the Cincinnati area has attained the 2015 8-Hour ozone standard, a maintenance plan for the 2015 a8-Hour ozone NAAQS, 2026 and 2035 VOC and NOX motor vehicle emission budgets for the Cincinnati area.
Ozone (8-hour, 2015)	Cleveland (Cuyahoga, Geauga, Lake, Lorain, Medina, Portage, and Summit Counties)	12/8/2025	6/29/2026, 91 FR 39019
PM-10	Cuyahoga and Jefferson Counties	5/22/2000	1/10/2001, 65 FR 77308
PM2.5 (1997)	Canton (Stark County)	6/26/2012	10/22/2013, 78 FR 62459
PM2.5 (1997)	Cincinnati (Butler, Clermont, Hamilton, and Warren Counties)	1/25/2011	12/23/2011, 76 FR 80253
PM2.5 (1997)	Cleveland (Ashtabula, Cuyahoga, Lake, Lorain, Medina, Portage, and Summit Counties)	10/5/2011	9/18/2013, 78 FR 57270
PM2.5 (1997)	Columbus (Coshocton, Delaware, Fairfield, Franklin, and Licking Counties)	6/3/2011	11/7/2013, 78 FR 66845
PM2.5 (1997)	Dayton-Springfield (Clark, Greene, and Montgomery Counties)	6/1/2011	9/26/2013, 78 FR 59258
PM2.5 (1997)	Huntington-Ashland (Adams, Gallia, Lawrence, and Scioto Counties)	5/4/2011	12/31/2012, 77 FR 76883
PM2.5 (1997)	Parkersburg-Marietta (Washington County)	2/29/2012	8/29/2013, 78 FR 53275
PM2.5 (1997)	Steubenville-Weirton (Jefferson County)	4/16/2012	9/18/2013, 78 FR 57273
PM2.5 (1997)	Wheeling (Belmont County)	4/16/2012	8/29/2013, 78 FR 53275
PM2.5 (2006)	Canton (Stark County)	9/8/2021	1/22/2024, 89 FR 3889	2nd maintenance plan.
PM2.5 (2006)	Cleveland (Cuyahoga, Lake, Lorain, Medina, Portage, and Summit Counties)	9/8/2021	1/22/2024, 89 FR 3889	2nd maintenance plan.
PM2.5 (2006)	Steubenville-Weirton (Jefferson County)	9/8/2021	1/22/2024, 89 FR 3889	2nd maintenance plan.
PM2.5 (2012)	Cleveland	7/24/2018	4/12/2019, 84 FR 14881	EPA is approving the following elements: a determination that the Cleveland area has attained the 2012 annual PM2.5 standard, a maintenance plan for the 2012 annual PM2.5 NAAQS, 2022 and 2030 primary PM2.5 and NOX MVEBs for the Cleveland area.
SO2 (1971)	Center Township (Morgan County) and Waterford Township (Washington County)	6/25/1992	9/21/1994, 59 FR 48403
SO2 (1971)	Lake County and Steubenville/Mingo Junction (Jefferson County)	10/26/1995	8/30/1999, 64 FR 47113
SO2 (1971)	Franklin Township (Coshocton County), Addison Township (Gallia County), and Lorain County	3/20/2000	6/5/2000, 65 FR 35577
SO2 (1971)	Cuyahoga and Lucas Counties	9/27/2003	7/8/2004, 69 FR 41342
SO2 (2010)	Campbell-Clermont (Pierce Township in Clermont County)	11/07/2024	7/16/2025, 90 FR 31872	2nd Maintenance Plan.
SO2 (2010)	Lake County	4/9/2018	5/14/2019, 84 FR 21253
SO2 (2010)	Steubenville OH-WV (partial Jefferson County)	6/25/2019	11/29/2019, 84 FR 65683
SO2 (2010)	Muskingum River	3/31/2025	4/2/2026, 91 FR 16558
CO (1979)	Cleveland (Cuyahoga County)	10/20/2005	6/1/2006, 71 FR 31097
Lead (2008)	Bellefontaine (Logan County)	10/29/2013	7/28/2014, 79 FR 43655	Includes approval of the 10/29/2013 emissions inventory.
Lead (2008)	Canton (partial Stark County)	9/19/2024	7/16/2026, 91 FR 43557	Includes approval of the 2020 lead base year emissions inventory.
Lead (2008)	Cleveland (partial Cuyahoga County)	6/29/2016	5/31/2017, 82 FR 24871	Includes approval of the 2013 lead base year emissions inventory and emission limits and PMP as RACM for the Ferro facility.
Lead (2008)	Delta (partial Fulton County)	4/27/2017	3/13/2018, 83 FR 10796	Includes approval of the 2013 lead base year emissions inventory and Preventative Maintenance Plan as RACM/RACT for the Bunting Bearing LLC Delta facility.
Infrastructure Requirements
Section 110(a)(2) infrastructure requirements for the 1997 8-hour ozone NAAQS	Statewide	12/5/2007	7/13/2011, 76 FR 41075	Fully approved for all CAA elements except 110(a)(2)(D)(I), which has been remedied with a FIP.
Section 110(a)(2) infrastructure requirements for the 1997 PM2.5 NAAQS	Statewide	12/5/2007	7/13/2011, 76 FR 41075	Fully approved for all CAA elements except 110(a)(2)(D)(I), which has been remedied with a FIP.
Section 110(a)(2) infrastructure requirements for the 2006 PM2.5 NAAQS	Statewide	9/4/2009	5/10/2018, 83 FR 21719	Fully approved for all CAA elements except 110(a)(2)(D)(I), which has been disapproved and remedied with a FIP.
Section 110(a)(2) infrastructure requirements for the 2008 lead NAAQS	Statewide	10/12/2011	10/6/2014, 79 FR 60075	Fully approved for all CAA elements.
Section 110(a)(2) infrastructure requirements for the 2008 ozone NAAQS	Statewide	12/27/2012	5/10/2018, 83 FR 21719	Fully approved for all CAA elements except 110(a)(2)(D)(I), which has been disapproved and remedied with a FIP.
Section 110(a)(2) infrastructure requirements for the 2010 NO2 NAAQS	Statewide	2/8/2013	5/10/2018, 83 FR 21719	Fully approved for all CAA elements.
Section 110(a)(2) infrastructure requirements for the 2010 SO2 NAAQS	Statewide	6/7/2013	5/10/2018, 83 FR 21719	No action has been taken on 110(a)(2)(D)(I). All other CAA elements have been approved.
Section 110(a)(2)(D) infrastructure requirements for the 2012 PM2.5 NAAQS	Statewide	12/4/2015	5/10/2018, 83 FR 21719	Fully approved for all CAA elements.
Section 110(a)(2) infrastructure requirements for the 2015 ozone NAAQS	Statewide	9/28/2018	2/13/2023, 88 FR 9336	Approved CAA elements: 110(a)(2)(A), (B), (C), (D)(i)(II) prongs 3 and 4, (E), (F), (G), (H), (J), (K), (L), and (M). Elements (D)(i)(I) prongs 1 and 2 are disapproved.
Summary of Plan Element
Particulate Matter (PM-10) Plan	Statewide	11/14/1991	6/27/1994, 59 FR 27464
Summary of the 15 Percent (%) Rate of Progress (ROP) Plan Control Measures for Volatile Organic Compounds (VOC) Emissions
Cincinnati 15% Plan	Cincinnati (Butler, Clermont, Hamilton, and Warren Counties)	3/19/1994	3/30/1998, 63 FR 4188
Visibility Protection
Regional Haze Plan	Statewide	11/30/2016	5/10/2018, 83 FR 21719	Full Approval.
Regional Haze Five-Year Progress Report	Statewide	3/11/2016	12/21/2017, 82 FR 60543
Regional Haze Plan for the Second Implementation Period	Statewide	7/30/2021, 8/6/2024, and 6/16/2025	7/8/2025, 90 FR 29993	Full Approval.

[80 FR 69606, Nov. 10, 2015] Editorial Note:For Federal Register citations affecting § 52.1870, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at www.govinfo.gov.

authority: 42 U.S.C. 7401

cite as: 40 CFR 52.1870