§ 52.320 - Identification of plan.

§ 52.320 Identification of plan.

Cross Reference

Link to an amendment published at 89 FR 59002, July 22, 2024.

(a) Purpose and scope. This section sets forth the applicable State Implementation Plan for Colorado under section 110 of the Clean Air Act, 42 U.S.C. 7410 and 40 CFR part 51 to meet national ambient air quality standards or other requirements under the Clean Air Act.

(b) Incorporation by reference.

(1) Material listed in paragraphs (c) and (d) of this section with an EPA approval date prior to June 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 submitted by the state to EPA, and notice of any change in the material will be published in the Federal Register. Entries for paragraphs (c) and (d) of this section with EPA approval dates after June 1, 2015, will be incorporated by reference in the next update to the SIP compilation.

(2) EPA Region 8 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 State Implementation Plan as of June 1, 2015.

(3) Copies of the materials incorporated by reference may be inspected at the Environmental Protection Agency, Region 8, 1595 Wynkoop Street, Denver, Colorado, 80202-1129; Air and Radiation Docket and Information Center, U.S. Environmental Protection Agency, West Building, 1301 Constitution Ave. NW., Washington, DC 20460; and, the National Archives and Records Administration (NARA). For information on the availability of materials from the docket in the EPA Headquarters Library, please call the Office of Air and Radiation (OAR) at [phone]. For information on the availability of this material at NARA, call [phone], or go to http://www.archives.gov/federal-register/cfr/ibr-locations.html. Copies of the Colorado regulations we have approved are also available at http://www.epa.gov/region8/air/sip.html.

(c) EPA-approved regulations.

87 FR 71258, 1187 FR 71258, 11

Title	State effective date	EPA Effective date	Final rule citation/date	Comments
5 CCR 1001-01, Procedural Rules
State Implementation Plan	3/30/1998	5/10/2012	77 FR 21451, 4/10/2012
5 CCR 1001-02, Common Provisions Regulation
I. Definitions, Statement of Intent, and General Provisions Applicable to all Emission Control Regulations adopted by the Colorado Air Quality Control Commission	1/30/2010 12/15/2010	2/24/2016	81 FR 3963, 1/25/2016	Except I.G. Definitions, “Construction” and “Day”
II. General	1/30/2010	2/24/2016	81 FR 3963, 1/25/2016	Except II.I; II.J.5.
5 CCR 1001-03, Regulation Number 1, Emission Control for Particulate Matter, Smoke, Carbon Monoxide, and Sulfur Oxides
Definitions	10/2/2005	2/17/2012	77 FR 2466, 1/18/2012
I. Applicability: Referenced Federal Regulations	10/2/2005	2/17/2012	77 FR 2466, 1/18/2012
II. Smoke and Opacity	10/2/2005	2/17/2012	77 FR 2466, 1/18/2012
III. Particulate Matter	10/2/2005	2/17/2012	77 FR 2466, 1/18/2012
IV. Continuous Emission Monitoring Requirements for New or Existing Sources	10/2/2005	2/17/2012	77 FR 2466, 1/18/2012
V. Emission Standards for Existing Iron and Steel Plant Operations	10/2/2005	2/17/2012	77 FR 2466, 1/18/2012
VI. Sulfur Dioxide Emission Regulations	10/2/2005	2/17/2012	77 FR 2466, 1/18/2012
VII. Emission Regulations for Certain Electric Generating Stations Owned and Operated by the Public Service Company of Colorado	10/2/2005	2/17/2012	77 FR 2466, 1/18/2012
VIII. Restrictions on the Use of Oil as a Backup Fuel	10/2/2005	2/17/2012	77 FR 2466, 1/18/2012
IX. Emission Regulations Concerning Areas Which Are Nonattainment for Carbon Monoxide—Refinery Fluid Bed Catalytic Cracking Units:	10/2/2005	2/17/2012	77 FR 2466, 1/18/2012
Appendix A, Method of Measuring Opacity from Fugitive Particulate Emission Sources	5/30/1982	1/2/1987	51 FR 43609, 12/3/1986
Appendix B, Method of Measurement of Off-Property Transport of Fugitive Particulate Emissions	5/30/1982	1/2/1987	51 FR 43609, 12/3/1986
5 CCR 1001-05, Regulation Number 3, Part A, Concerning General Provisions Applicable to Reporting and Permitting
I. Applicability	2/14/2020	12/22/2022	2023	[August 21, 2024]	89 FR 59000, 7/22/20222024
II. Air Pollution Emission Notice (APEN) Requirements	2/14/2020	12/22/2022	2023	[August 21, 2024]	89 FR 59000, 7/22/20222024
III. Administrative Permit Amendment Procedures	4/30/2008	3/17/2014	79 FR 8632, 2/13/2014
IV. Operational Flexibility	4/30/2008	3/17/2014	79 FR 8632, 2/13/2014
V. Certification and Trading of Emission Reduction Credits Offset and Netting Transactions	10/15/2014	6/3/2019	84 FR 18991, 5/3/2019
VI. Fees	11/30/2018	10/16/2020	85 FR 57696, 9/16/2020
VII. Confidential Information or Data Contained in Air Pollutant Emission Notices, Permit Applications, or Reports Submitted Pursuant to Part C, Section V.C.6	4/30/2008	3/17/2014	79 FR 8632, 2/13/2014
VIII. Technical Modeling and Monitoring Requirements	12/15/2010	2/24/2016	81 FR 3963, 1/25/2016
Appendix A, Method for Determining De Minimis Levels For Non-Criteria Reportable Pollutants	10/15/2014	11/13/2017	82 FR 47380, 10/12/2017
Appendix B, Non-criteria Reportable Pollutants (Sorted by BIN)	12/15/2010 2/15/2013	2/24/2016	81 FR 3963, 1/25/2016
5 CCR 1001-05, Regulation Number 3, Part B, Concerning Construction Permits
I. Applicability	4/30/2008	3/17/2014	79 FR 8632, 2/13/2014
II. General Requirements for Construction Permits	2/14/2020	12/22/2022	87 FR 71258, 11/22/2022
III. Construction Permit Review Procedures	2/14/2021	4/26/2023	88 FR 18054, 3/27/2023
5 CCR 1001-05, Regulation Number 3, Part D, Concerning Major Stationary Source New Source Review and Prevention of Significant Deterioration
I. Applicability	10/15/2014	6/3/2019	84 FR 18991, 5/3/2019
II. Definitions	2/14/2021	4/26/2023	88 FR 18054, 3/27/2023
III. Permit Review Procedures	12/15/2011	2/24/2016	81 FR 3963, 1/25/2016
IV. Public Comment and Hearing Requirements	2/14/2021	4/26/2023	88 FR 18054, 3/27/2023
V. Requirements Applicable to Nonattainment Areas	10/15/2014	6/3/2019	84 FR 18991, 5/3/2019
VI. Requirements applicable to attainment and unclassifiable areas and pollutants implemented under Section 110 of the Federal Act (Prevention of Significant Deterioration Program)	10/15/2014	6/3/2019	84 FR 18991, 5/3/2019
VII. Negligibly Reactive Volatile Organic Compounds (NRVOCs)	4/30/2008	3/17/2014	79 FR 8632, 2/13/2014
VIII. Area Classifications	4/30/2008	3/17/2014	79 FR 8632, 2/13/2014
IX. Redesignation	4/30/2008	3/17/2014	79 FR 8632, 2/13/2014
X. Air Quality Limitations	12/15/2011	2/24/2016	81 FR 3963, 1/25/2016
XI. Exclusions From Increment Consumption	4/30/2008	3/17/2014	79 FR 8632, 2/13/2014
XII. Innovative Control Technology	4/30/2008	3/17/2014	79 FR 8632, 2/13/2014
XIII. Federal Class I Areas	12/15/2011	2/24/2016	81 FR 3963, 1/25/2016
XIV. Visibility	12/15/2010	2/24/2016	81 FR 3963, 1/25/2016
XV. Actual PALs	10/15/2014	6/3/2019	84 FR 18991, 5/3/2019
5 CCR 1001-05, Regulation Number 3, Part F, Regional Haze Limits—Best Available Retrofit Technology (BART) and Reasonable Progress (RP)
VI. Regional Haze Determinations	2/14/2017	8/6/2018	83 FR 31332, 7/5/2018
VII. Monitoring, Recordkeeping, and Reporting for Regional Haze Limits	2/14/2011	1/30/2013	77 FR 76871, 12/31/2012
5 CCR 1001-06, Regulation Number 4, Sale and Installation of Wood-Burning Appliances and Use of Certain Wood Burning Appliances During High Pollution Days
I. Definitions	1/14/2016	8/16/2019	84 FR 34063, 7/17/2019	Previous SIP approval 4/17/1997.
II. Limitation on the Sale and Installation of Wood-Burning Stoves	4/30/2017	8/16/2019	84 FR 34063, 7/17/2019	Previous SIP approval 4/17/1997.
III. Approval Procedure for Pellet Stoves	1/14/2016	8/16/2019	84 FR 34063, 7/17/2019	Previous SIP approval 4/17/1997.
V. Enforcement	1/14/2016	8/16/2019	84 FR 34063, 7/17/2019	Previous SIP approval 4/17/1997.
VI. List of Approved-Wood Burning Appliances	1/14/2016	8/16/2019	84 FR 34063, 7/17/2019	Previous SIP approval 4/17/1997.
VII. High Pollution Days	1/14/2016	8/16/2019	84 FR 34063, 7/17/2019	Previous SIP approval 4/17/1997.
VIII. Requirements for Installation of Fireplaces	4/30/2017	8/16/2019	84 FR 34063, 7/17/2019	Previous SIP approval 4/17/1997.
IX. Implementation of Local Controls	1/14/2016	8/16/2019	84 FR 34063, 7/17/2019	Previous SIP approval 4/17/1997.
X. References	1/14/2016	8/16/2019	84 FR 34063, 7/17/2019	Previous SIP approval 4/17/1997.
5 CCR 1001-08, Regulation Number 6, Standards of Performance for New Stationary Sources
IV. Standards of Performance for New Sources of Sulfur Dioxide	3/30/1981	1/6/1982	46 FR 59536, 12/7/1981
5 CCR 1001-09, Regulation Number 7, Control of Ozone Via Ozone Precursors and Hydrocarbons via Oil and Gas Emissions, (Emissions of Volatile Organic Compounds and Nitrogen Oxides), Part A, Applicability and General Provisions
I. Applicability	2/14/2020	12/6/2021	86 FR 61071, 11/5/2021	Previous SIP approval 8/5/11 except for I.A.1.b, I.B.1.b, I.B.2.b, and I.B.2.d; nonsubstantive changes approved 7/3/2018, 2/24/2021, and 11/5/2021.
II. General Provisions	2/14/2020	12/6/2021	86 FR 61071, 11/5/2021	Previous SIP approval 8/5/2011 except for II.A.12, II.C.1, and the repeal of previously approved II.D; nonsubstantive changes to II.D approved 7/3/2018; nonsubstantive changes approved 2/24/2021 and 11/5/2021.
5 CCR 1001-09, Regulation Number 7, Control of Ozone Via Ozone Precursors and Hydrocarbons via Oil and Gas Emissions, (Emissions of Volatile Organic Compounds and Nitrogen Oxides), Part B, Storage, Transfer, and Disposal of Volatile Organic Compounds and Petroleum Liquids and Petroleum Processing and Refining
I. General Requirements for Storage and Transfer of Volatile Organic Compounds	2/14/2020	12/6/2021	86 FR 61071, 11/5/2021	Previous SIP approval 8/5/2011. nonsubstantive changes approved 2/24/2021 and 11/5/2021.
II. Storage of Highly Volatile Organic Compounds	2/14/2020	12/6/2021	86 FR 61071, 11/5/2021	Previous SIP approval 8/5/2011. nonsubstantive changes approved 11/5/2021.
III. Disposal of Volatile Organic Compounds	2/14/2020	12/6/2021	86 FR 61071, 11/5/2021	Previous SIP approvals 8/5/2011 and 2/24/2021; nonsubstantive changes approved 11/5/2021.
IV. Storage and Transfer of Petroleum Liquid	2/14/2020	12/6/2021	86 FR 61071, 11/5/2021	Previous SIP approval 8/5/2011; nonsubstantive changes to approved 7/3/2018 and 2/24/201. Substantive changes approved 11/5/2021.
V. Crude Oil	2/14/2020	12/6/2021	86 FR 61071, 11/5/2021	Previous SIP approval 8/5/2011; nonsubstantive approved 7/3/2018, 2/24/2021, and 11/5/2021.
VI. Petroleum Processing and Refining	2/14/2020	12/6/2021	86 FR 61071, 11/5/2021	Previous SIP approval 8/5/2011; nonsubstantive changes approved 7/3/2018, 2/24/2021, and 11/5/2021.
VII. Control of Volatile Organic Compound Leaks from Vapor Collection Systems and Vapor Control Systems Located at Gasoline Terminals, Gasoline Bulk Plants, and Gasoline Dispensing Facilities	2/14/2020	12/6/2021	86 FR 61071, 11/5/2021	Previous SIP approval 8/5/2011; nonsubstantive changes approved 2/24/2021, substantive changes made to VII.-VII.B.2.b approved 11/5/2021.
Appendix B Criteria for Control of Vapors from Gasoline Transfer to Storage Tanks	2/14/2020	12/6/2021	86 FR 61071, 11/5/2021	Previous approval 5/30/95. Substantive changes approved 11/5/2021
Appendix C Criteria for Control of Vapors from Gasoline Transfer at Bulk Plants	2/14/2020	12/6/2021	86 FR 61071, 11/5/2021	Previous approval 3/13/81. Nonsubstantive changes approved 11/5/2021.
5 CCR 1001-09, Regulation Number 7, Control of Ozone Via Ozone Precursors and Hydrocarbons via Oil and Gas Emissions, (Emissions of Volatile Organic Compounds and Nitrogen Oxides), Part C, Surface Coating, Solvents, Asphalt, Graphic Arts and Printing, and Pharmaceuticals
I. Surface Coating Operations	2/14/2021	6/8/2023	88 FR 29827, 5/9/2023	Previous SIP approval 8/5/2011; nonsubstantive changes approved 7/3/2018; substantive changes approved 2/24/2021; nonsubstantive changes approved 11/5/2021. Substantive changes limited approval/disapproval 5/9/2023.
II. Solvent Use	2/14/2020	12/6/2021	86 FR 61071, 11/5/2021	Previous SIP approval 8/5/2011; substantive changes approved 2/24/2021 and 11/5/2021.
III. Use of Cutback Asphalt	2/14/2020	12/6/2021	86 FR 61071, 11/5/2021	Previous SIP approval 8/5/2011; nonsubstantive changes approved 2/24/2021 and 11/5/2021.
IV. Graphic Arts and Printing	2/14/2020	12/6/2021	86 FR 61071, 11/5/2021	Previous SIP approval 8/5/2011. Substantive changes made in 7/3/2018 rulemaking. IBR correction approved 2/24/2021. Nonsubstantive changes approved 11/5/2021.
V. Pharmaceutical Synthesis	2/14/2020	12/6/2021	86 FR 61071, 11/5/2021	Previous SIP approval 8/5/2011;, nonsubstantive changes approved 2/24/2021 and 86 FR 61071.
Appendix D Minimum Cooling Capacities for Refrigerated Freeboard Chillers on Vapor Degreasers	2/14/2020	12/6/2021	86 FR 61071, 11/5/2021	Previous SIP approval 5/30/95. Nonsubstantive changes approved 11/5/2021.
Appendix E Emissions Limit Conversion Procedure	2/14/2020	12/6/2021	86 FR 61071, 11/5/2021	Previous SIP approval 5/30/95. Nonsubstantive changes approved 11/5/2021.
5 CCR 1001-09, Regulation Number 7, Control of Ozone Via Ozone Precursors and Hydrocarbons via Oil and Gas Emissions, (Emissions of Volatile Organic Compounds and Nitrogen Oxides), Part D, Oil and Natural Gas Operations
I. Volatile Organic Compound Emissions from Oil and Gas Operations	1/30/2022	6/8/2023	88 FR 29827, 5/9/2023	Previous SIP approval 2/13/2008. Substantive changes to section XII; state-only provisions excluded, approved 7/3/2018. Substantive changes approved 11/25/2021 except no action on sections I.D., I.E., I.F. and I.J.1. Conditional approval of sections I.D., I.E., I.F., and I.J.1. 5/13/2022. Limited approval/disapproval section I.D., I.E., I.F., and I.J.1 5/9/2023.
II. Statewide Controls for Oil and Gas Operations	2/14/2020	12/6/2021	86 FR 61071, 11/5/2021	Substantive changes to II.C., II.C.1., II.C.1.b.(ii)-(B), and II.F approved 11/5/2021.
III. Natural Gas-Actuated Pneumatic Controllers Associated with Oil and Gas Operations	2/14/2020	6/8/2023	88 FR 29827, 5/9/2023	Substantive changes to III.-III.B.3., III.B.5., III.B.7.-III.C.2.c.(ii), III.D.-III.D.2.b., III.D.3.b., and III.E.-III.E.2.c. approved 11/5/2021. Revisions to definitions for pneumatic controls approved 5/9/2-23.
5 CCR 1001-09, Regulation Number 7, Control of Ozone Via Ozone Precursors and Hydrocarbons via Oil and Gas Emissions, (Emissions of Volatile Organic Compounds and Nitrogen Oxides), Part E, Combustion Equipment and Major Source RACT
I. Control of Emissions from Engines	11/14/2020	6/8/2023	88 FR 29827, 5/9/2023	Previous SIP approval 8/19/2005 and 12/31/2012; nonsubstantive changes to sections XVI.A.-C. 7/3/2018; substantive changes approved 2/24/2021, except sections XVI.D.4.b.(i) and XVI.D.4.d. section XVII.E.3.a. from the Regional Haze SIP approved in SIP. Previous SIP approval 12/31/2012; nonsubstantive changes approved 2/24/2021 and 11/5/2021. Limited approval/disapproval 5/9/2023.
II. Control of Emissions from Stationary and Portable Engines and Other Combustion Equipment in the 8-Hour Ozone Control Area	2/14/2020	6/8/2023	88 FR 29827, 5/9/2023	Previous SIP approvals 8/19/2005 and 12/31/2012; nonsubstantive changes to approved 7/3/2018; substantive changes approved 2/24/2021 except sections XVI.D.4.b.(i) and XVI.D.4.d. Substantive changes approved 11/5/2021. Limited approval/disapproval 5/9/2023except NOX emission limits for refinery fuel heaters in II.A.4.g.
III. Control of Emissions from Specific Major Sources of VOC and/or NOx in the 8-Hour Ozone Control Area	2/14/2020	12/6/2021	86 FR 61071, 11/5/2021	New section approved in SIP 2/24/2021. Substantive changes approved 11/5/2021.
IV. Control of Emissions from Breweries in the 8-hour Ozone Control Area	2/14/2020	12/6/2021	86 FR 61071, 11/5/2021	New section approved in SIP 2/24/2021. Nonsubstantive changes approved 11/5/2021.
5 CCR 1001-12, Regulation Number 10, Criteria for Analysis of Transportation Conformity
I. Requirement to Comply with the Federal Rule	1/30/2012	4/3/2014	79 FR 12079, 3/4/2014
II. Definitions	3/30/2016	5/7/2018	83 FR 14757, 4/6/2018
III. Interagency Consultation	3/30/2016	5/7/2018	83 FR 14757, 4/6/2018
IV. Emission reduction credit for certain control measures	1/30/2012	4/3/2014	79 FR 12079, 3/4/2014
V. Enforceability of design concept and scope and project-level mitigation and control measures	1/30/2012	4/3/2014	79 FR 12079, 3/4/2014
5 CCR 1001-13, Regulation Number 11, Motor Vehicle Emissions Inspection Program—Part A, General Provisions, Area of Applicability, Schedules for Obtaining Certification of Emissions Control, Definitions, Exemptions, and Clean Screening/Remote Sensing
I. Applicability	2/15/2013 12/30/2013	11/21/2016	81 FR 72720, 10/21/2016
II. Definitions	11/30/2014	3/11/2019	84 FR 2449, 2/7/2019
III. Exemption from Section 42-4-314, C.R.S. for Department of Defense Personnel Participating in the Privately Owned Vehicle Import Control Program	5/31/2004	9/19/2005	70 FR 48652, 8/19/2005
IV. Clean Screen/Remote Emissions Sensing	2/15/2013	11/21/2016	81 FR 72720, 10/21/2016
V. Expansion of the Enhanced Emissions Program to the North Front Range Area	1/14/2017	8/2/2018	83 FR 31068, 7/3/2018
5 CCR 1001-13, Regulation Number 11, Motor Vehicle Emissions Inspection Program—Part B, Standards and Procedures for the Approval, Operation, Gas Span Adjustment, Calibration and Certification of the Division Approved Test Analyzer Systems for Use in the Basic and Enhanced Areas and Test Analyzer Systems for Licensed Dealers in the Enhanced Area
I. Approval of the Colo '94 Test Analyzer Systems	5/31/2004	9/19/2005	70 FR 48652, 8/19/2005
II. Application for Approval of Colo '94 Test Analyzer Systems Equipment Manufacturers	5/31/2004	9/19/2005	70 FR 48652, 8/19/2005
III. Performance and Design Specification for the Colo '94 Exhaust Gas Analyzers	5/31/2004	9/19/2005	70 FR 48652, 8/19/2005
IV. Span Gases For Use With Colorado 94 and Colorado 97 Test Analyzer Systems	11/30/2014	3/11/2019	84 FR 2449, 2/7/2019
V. Documentation, Logistics, and Warranty Requirements	5/31/2004	9/19/2005	70 FR 48652, 8/19/2005
VI. Calibration of Colorado '94 Test Analyzer Systems	5/31/2004	9/19/2005	70 FR 48652, 8/19/2005
VII. Approval of the Colorado Automobile Dealers Transient Mode Test Analyzer System	5/31/2004	9/19/2005	70 FR 48652, 8/19/2005
VIII. Applications for Approval of the Colorado Automobile Dealers Transient Mode Test Analyzer System	5/31/2004	9/19/2005	70 FR 48652, 8/19/2005
IX. Approval of the Colorado On-Board Diagnostic (OBD) Test Analyzer System	2/15/2013	11/21/2016	81 FR 72720, 10/21/2016
X. The Colorado On-Board Diagnostics (OBD) Test Analyzer System	2/15/2013	11/21/2016	81 FR 72720, 10/21/2016
5 CCR 1001-13, Regulation Number 11, Motor Vehicle Emissions Inspection Program—Part C, Inspection Procedures and Requirements for Exhaust Emissions, Fuel Evaporation Control, Visible Smoke Emissions, Emissions Control Systems, On-Board Diagnostics (OBD); and Practices to Ensure Proper Emissions Related Adjustments and Repairs
I. Pre-inspection Requirements	2/15/2013	11/21/2016	81 FR 72720, 10/21/2016
II. Exhaust Emissions Inspection Procedures	11/30/2014, 9/30/2017	3/11/2019	84 FR 2449, 2/7/2019	.
III. Emissions Control Systems Inspection Procedures	2/15/2013	11/21/2016	81 FR 72720, 10/21/2016
IV. On-Board Diagnostic II Inspection Procedures	2/15/2013	11/21/2016	81 FR 72720, 10/21/2016
V. Evaporative Fuel Control Inspection Procedures	2/15/2013	11/21/2016	81 FR 72720, 10/21/2016
VI. Free Reinspection	5/31/2004	9/19/2005	70 FR 48652, 8/19/2005
VII. Repair Information	5/31/2004	9/19/2005	70 FR 48652, 8/19/2005
VIII. Certification of Emissions Control	11/30/2014	3/11/2019	84 FR 2449, 2/7/2019
IX. [Reserved]
X. Emissions Related Repairs	11/30/2014	3/11/2019	84 FR 2449, 2/7/2019
XI. Engine Changes	5/31/2004	9/19/2005	70 FR 48652, 8/19/2005
XII. Clean Screen Inspection Program Procedures	11/30/2014	3/11/2019	84 FR 2449, 2/7/2019
5 CCR 1001-13, Regulation Number 11, Motor Vehicle Emissions Inspection Program—Part D, Qualification and Licensing of Emissions Mechanics, Emissions Inspectors and Clean Screen Inspectors; Licensing of Emissions Inspection and Readjustment Stations, Inspection-Only Stations, Inspection-Only Facilities, Fleets, Motor Vehicle Dealer Test Facilities and Enhanced Inspection Centers; Qualification of Clean Screen Inspection Sites; and Registration of Emissions Related Repair Facilities and Technicians
I. Licensing of Emissions Inspection and Readjustment Stations, Inspection-Only Stations, Inspection-Only Facilities, Enhanced Inspection Centers, Fleet Inspection Stations and Motor Vehicle Dealer Test Facilities	9/30/2017	3/11/2019	84 FR 2449, 2/7/2019
II. Qualification and Licensing of Emission Mechanics, and Emissions Inspectors	5/31/2004	9/19/2005	70 FR 48652, 8/19/2005
III. Registration of Emissions Related Repair Facilities	5/31/2004	9/19/2005	70 FR 48652, 8/19/2005
IV. Requirements for Clean Screen/Remote Sensing Sites	5/31/2004	9/19/2005	70 FR 48652, 8/19/2005
V. Qualification of Clean Screen Emissions Inspectors	5/31/2004	9/19/2005	70 FR 48652, 8/19/2005
VI. Requalification Requirements for all Clean Screen Emissions Inspectors	5/31/2004	9/19/2005	70 FR 48652, 8/19/2005
VII. Transmittal of Letters of Qualification and Issuance of Clean Screen Inspector Licenses	5/31/2004	9/19/2005	70 FR 48652, 8/19/2005
VIII. Lapse of Certificate of Qualification for Clean Screen Inspector	5/31/2004	9/19/2005	70 FR 48652, 8/19/2005
IX. Program License Application Performance Review Criteria	5/31/2004	9/19/2005	70 FR 48652, 8/19/2005
5 CCR 1001-13, Regulation Number 11, Motor Vehicle Emissions Inspection Program—Part E, Prohibited Acts and Penalties to Ensure Proper Inspection Procedures, Adherence to Prescribed Procedures and Effective Emissions Related Repairs
I. The Grounds Upon Which The License Of An Emissions Mechanic, Emissions Inspector Or Any Type Of AIR Program Inspection Business May Be Suspended, For A Period Of Time Not Less Than Six Months, Or Revoked	5/31/2004	9/19/2005	70 FR 48652, 8/19/2005
5 CCR 1001-13, Regulation Number 11, Motor Vehicle Emissions Inspection Program—Part F, Maximum Allowable Emissions Limits for Motor Vehicle Exhaust, Evaporative and Visible Emissions for Light-Duty and Heavy-Duty Vehicles
I. The Idle Short Test Concentration Limits For Light-Duty Vehicles And Heavy-Duty Trucks Specified In Sections I (A) And II (A) Respectively Of This Part F Are Those Necessary To Comply With Emissions Reductions As The Program Matures	5/31/2004	9/19/2005	70 FR 48652, 8/19/2005
II. Heavy-Duty Vehicles (1978 and Earlier Greater Than 6000 lbs. GVWR) Subject to Idle Short Test(s)	5/31/2004	9/19/2005	70 FR 48652, 8/19/2005
III. Transient Test Mass Emissions Limits In Grams/Mile (GPM)	1/30/2006	1/22/2013	77 FR 75388, 12/20/2012
IV. Evaporative Emissions Control Standards	5/31/2004	9/19/2005	70 FR 48652, 8/19/2005
V. Visible Smoke	2/15/2013	11/21/2016	81 FR 72720, 10/21/2016
VI. Clean Screen Program Maximum Allowable Emissions Limits	9/30/2017	3/11/2019	84 FR 2449, 2/7/2019
VII. On-Board Diagnostic Inspection Passing Criteria	9/30/2017	3/11/2019	84 FR 2449, 2/7/2019
5 CCR 1001-13, Regulation Number 11, Appendices
Appendix A, Technical Specifications	11/30/2014, 9/30/2017	3/11/2019	84 FR 2449, 2/7/2019
5 CCR 1001-14, Emission Budgets for Nonattainment Areas in the State of Colorado
Budgets	8/30/1995	4/30/1998	63 FR 15294, 3/31/1998
5 CCR 1001-18, Regulation Number 16, Street Sanding Emissions
I. Street Sanding Materials Specifications	4/19/2001	10/16/2002	67 FR 58335, 9/16/2002
II. Street Sanding Requirements Specific to the Denver PM-10 Attainment/Maintenance Area	4/19/2001	10/16/2002	67 FR 58335, 9/16/2002
5 CCR 1001-20, Nonattainment-Attainment/Maintenance Areas
I. Pagosa Springs Attainment/Maintenance Area	5/30/2000	8/14/2001	66 FR 32556, 6/15/2001
II. Telluride Attainment/Maintenance Area	5/30/2000	8/14/2001	66 FR 32556, 6/15/2001
III. Aspen/Pitkin County PM-10 Attainment/Maintenance Area	2/28/2001	7/14/2003	68 FR 26212, 5/15/2003
IV. Lamar Attainment/Maintenance Area	12/30/2001	11/25/2005	70 FR 61563, 10/25/2005
V. Canon City PM-10 Nonattainment Area	12/30/1993	2/13/1995	59 FR 64332, 12/14/1994
VIII. Steamboat Springs PM10 Attainment/Maintenance Area	11/24/2004	12/30/2001	69 FR 62210, 10/25/2004
5 CCR 1001-21, Regulation Number 21, Control of Volatile Organic Compounds from Consumer Products and Architectural and Industrial Maintenance Coatings
I. Applicability	09/14/2019	6/8/2023	88 FR 29827, 5/9/2023	Limited approval/disapproval 5/9/2023.
II. Consumer Products	09/14/2019	6/8/2023	88 FR 29827, 5/9/2023	Limited approval/disapproval 5/9/2023.
III. Architectural and Industrial Maintenance Coatings	09/14/2019	6/8/2023	88 FR 29827, 5/9/2023	Limited approval/disapproval 5/9/2023.
IV. Definitions	09/14/2019	6/8/2023	88 FR 29827, 5/9/2023	Limited approval/disapproval 5/9/2023.

(d) EPA-approved source-specific requirements.

Title	State effective date	EPA effective date	Final rule citation/date	Comments
Long-Term Strategy Review and Revision of Colorado's State Implementation Plan for Class I Visibility Protection: Part I: Hayden Station Requirements	8/15/1996	2/18/1997	62 FR 2305, 1/16/1997
Revision of Colorado's State Implementation Plan for Class I Visibility Protection Craig Station Units 1 and 2 Requirements	4/19/2001	8/6/2001	66 FR 35374, 7/5/2001

(e) EPA-approved nonregulatory provisions.

Title	State effective date	EPA effective date	Final rule citation/date	Comments
Legislation
Concerning Air Pollution Control, and, in connection therewith, revising the Air Program to comply with requirements of the Federal “Clean Air Act Amendments of 1990”	7/1/1993	12/8/1994	59 FR 55584, 11/8/1994
Concerning Legislative Procedures for the Approval of State Implementation Plans and Regulations Related to Air Pollution	5/31/1995	4/30/1998	63 FR 15294, 3/31/1998
Maintenance and Attainment Plan Elements
Aspen
Revised PM10 Maintenance Plan for the Aspen Attainment/Maintenance Area	12/16/2010	11/18/2013	78 FR 57496, 9/19/2013
Canon City
PM10 Maintenance Plan for Canon City	11/20/2008	9/9/2013	78 FR 41307, 7/10/2013
Colorado Springs
Colorado Springs Carbon Monoxide Maintenance Plan	12/17/2009	9/30/2013	78 FR 46521, 8/1/2013
Denver Metropolitan Area
1982 Denver Regional Element of the State Air Quality Implementation Plan	3/4/2001	10/11/2001	66 FR 47086, 9/11/2001
Carbon Monoxide Maintenance Plan for the Denver Metropolitan Area	8/30/2003	11/15/2004	69 FR 55752, 9/16/2004
Ozone Redesignation Request and Maintenance Plan for the Denver Metropolitan Area	1/11/2001	10/11/2001	66 FR 47086, 9/11/2001
PM10 Redesignation Request and Maintenance Plan For the Denver Metropolitan Area	4/19/2001	10/16/2002	67 FR 58335, 9/16/2002
Revision to the Colorado State Implementation Plan: Concerning the removal of the Colorado Clean Vehicle Fleet Program from the SIP, and the adoption of a replacement program	3/1/2000	1/14/2002	66 FR 64751, 12/14/2001
Early Action Compact Ozone Action Plan	5/31/2004	9/19/2005	70 FR 48652, 8/19/2005
2008 Ozone Moderate Area Attainment Plan	1/14/2017	8/2/2018	83 FR 31068, 7/3/2018
Reasonably Available Control Technology for the 2008 8-Hour Ozone National Ambient Air Quality Standard (NAAQS) Moderate State Implementation Plan (RACT SIP)	11/21/2017	1/8/2024	88 FR 85511, 12/8/2023	Previous SIP approvals 7/03/2018, 2/24/2021, and 11/05/2021. Limited approval/limited disapproval of RACT regulations 5/9/2023. Disapproval of refinery fueled process heaters located at major sources of NOX on December 8, 2023.
Ozone (8-hour, 2015) DMNFR NNSR Certification	7/6/2020	6/13/2022	87 FR 29232, 5/13/2022
2008 Ozone Serious Area Attainment Plan	2/14/2020	12/7/2023	88 FR 76676, 11/7/2023	Disapproval of contingency measures. RACM and attainment demonstration withdrawn.
Reasonably Available Control Technology for the 2008 8-Hour Ozone National Ambient Air Quality Standard (NAAQS) Serious State Implementation Plan (RACT SIP)	2/14/2020	1/8/2024	88 FR 85511, 12/8/2023	Disapproval of RACT for certain major sources of NOX on December 8, 2023.
Ozone (8-hour, 2015) DMNFR 2017 Base Year Inventory	2/14/2023	[August 21, 2024]	89 FR 59000, 7/22/2024
Fort Collins
Revised Carbon Monoxide Maintenance Plan, Fort Collins Attainment/Maintenance Area	12/16/2010	11/12/2013	78 FR 56164, 9/12/2013
Greeley
Greeley Carbon Monoxide Maintenance Plan	12/17/2009	10/1/2013	78 FR 46816, 8/2/2013
Lamar
PM10 Redesignation Request and Maintenance Plan for the Lamar Area	12/30/2001	11/25/2005	70 FR 61563, 10/25/2005
Longmont
Revised Carbon Monoxide Maintenance Plan for the Longmont Attainment/Maintenance Area	3/1/2004	11/29/2004	69 FR 58264, 9/30/2004
Pagosa Springs
Final Revised PM10 Maintenance Plan for the Pagosa Springs Attainment/Maintenance Area	11/19/2009	4/9/2014	79 FR 13256, 3/10/2014
Steamboat Springs
Revised PM10 Maintenance Plan for theSteamboat Springs Attainment/Maintenance Area	1/30/2012	3/23/2015	80 FR 2827, 1/21/2015
Telluride
Revised PM10 Attainment/Maintenance Plan Telluride Attainment/Maintenance Area	11/19/2009	3/13/2014	79 FR 8090, 2/11/2014
Local Ordinances/Resolutions
Adopting the Fort Collins Better Air Campaign for Inclusion in the Fort Collins Element of the State Implementation Plan for Air Quality	9/5/1989	6/17/1991	56 FR 15499, 4/17/1991
Visibility
State Implementation Plan for Class I Visibility Protection, State of Colorado	11/19/1987	10/11/1988	53 FR 30428, 8/12/1988
Regional Haze 5 Year Progress Report	11/19/2015	10/11/2019	84 FR 47884, 9/11/2019
Long-Term Strategy Review and Revision of Colorado's State Implementation Plan for Class I Visibility Protection, Part II: Revision of the Long-Term Strategy	11/18/2004	12/4/2006	71 FR 64465, 11/2/2006

[80 FR 58209, Sept. 28, 2015, as amended at 81 FR 3966, Jan. 25, 2016; 81 FR 21468, Apr. 12, 2016; 81 FR 72722, Oct. 21, 2016; 82 FR 47382, Oct. 12, 2017; 83 FR 14758, Apr. 6, 2018; 83 FR 31071, July 3, 2018; 83 FR 31333, July 5, 2018; 84 FR 2451, Feb. 7, 2019; 84 FR 18992, May 3, 2019; 84 FR 34064, July 17, 2019; 84 FR 47885, Sept. 11, 2019; 85 FR 57697, Sept. 16, 2020; 86 FR 11128, Feb. 24, 2021; 86 FR 61073, Nov. 5, 2021; 87 FR 29231, 29235, May 13, 2022; 87 FR 71261, Nov. 22, 2022; 88 FR 18055, Mar. 27, 2023; 88 FR 18426, Mar. 29, 2023; 88 FR 29833, May 9, 2023; 88 FR 76678, Nov. 7, 2023; 88 FR 85513, Dec. 8, 2023; 89 FR 59002, July 22, 2024]