Air Quality Standards, Designations and Emission Budgets
(Adopted 08/15/24, effective 10/15/24)
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Common Provisions Regulation
(Adopted 10/16/24, effective 12/15/24)
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Procedural Rules
(Adopted 12/18/24, effective 02/14/25)
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State Implementation Plan, Specific Regulations for Nonattainment-Attainment/Maintenance Areas (Local Elements)
(Adopted 11/20/08, effective 12/30/08)
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Regulation Number 1
Emission Control for Particulate Matter, Smoke, Carbon Monoxide and Sulfur Oxides
(Adopted 08/15/24, effective 10/15/24)
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Regulation Number 2
Odor Emission
(Adopted 05/16/13, effective 07/15/13)
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Regulation Number 3
Stationary Source Permitting and Air Pollutant Emission Notice Requirements
(Adopted 05/16/24, effective 07/15/24)
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Regulation Number 4
Concerning the Sale and Installation of Woodburning Appliances and the Use of Certain Woodburning Appliances During High Pollution Days
(Adopted 08/15/24, effective 10/15/24)
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Regulation Number 5
Generic Emissions Trading and Banking
(Repealed 02/17/05, effective 03/30/05)
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Regulation Number 6
Standards of Performance for New Stationary Sources
(Adopted 05/16/24, effective 07/15/24)
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Regulation Number 7
Control of Emissions from Oil and Gas Emissions Operations
(Adopted 02/21/25, effective 04/14/25)
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Regulation Number 8
Control of Hazardous Air Pollutants
(Adopted 05/16/24, effective 07/15/24)
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Regulation Number 9
Open Burning, Prescribed Fire, and Permitting
(Adopted 02/15/24, effective 04/15/24)
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Regulation Number 10
Criteria for Analysis of Transportation Conformity
(Adopted 02/18/16, effective 03/30/16)
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Regulation Number 11
Motor Vehicle Emissions Inspection Program
(Adopted 01/16/25, effective 03/17/25)
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Regulation Number 12
Reduction of Diesel Vehicle Emissions
(Adopted 01/16/25, effective 03/17/25)
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Regulation Number 13
Reduction of Carbon Monoxide Emissions from Gasoline Powered Motor Vehicles through the Use of Oxygenated Gasolines
(Repealed 08/20/09, effective 02/01/11)
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Regulation Number 14
Reduction of Motor Vehicle Air Pollution from Alternative Fueled Vehicles
(Repealed 08/19/99, effective 10/30/99)
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Regulation Number 15
Control of Emissions of Ozone-Depleting Compounds
(Adopted 09/18/08, effective 10/30/08)
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Regulation Number 16
Street Sanding Emissions
(Adopted 04/19/01, effective 06/30/01)
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Regulation Number 17
Clean Fuel Fleet Program
(Repealed 08/15/02, effective 10/30/02)
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Regulation Number 18
Control of Emissions of Acid Deposition Precursors
(Adopted 10/18/12, effective 12/15/12)
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Regulation Number 19
The Control of Lead Hazards
(Adopted 11/18/21, effective 01/14/22)
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Regulation Number 20
Colorado Low Emission Automobile Regulation
(Adopted 10/20/23, effective 12/15/23)
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Regulation Number 21
Control of Volatile Organic Compounds from Consumer Products and Architectural and Industrial Maintenance Coatings
(Adopted 12/15/22, effective 02/14/23)
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Regulation Number 22
Colorado Greenhouse Gas Reporting and Emission Reduction Requirements
Colorado Greenhouse Gas Reporting and Emission Reduction Requirements
(Adopted 10/16/24, effective 12/15/24)
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Regulation Number 23
Regional Haze Limits
(Adopted 12/17/21, effective 01/30/22)
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Regulation Number 24
Control of Emissions from Volatile Organic Compounds and Petroleum Liquids Storage and Petroleum Processing and Refining
(Adopted 04/20/23, effective 06/14/23)
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Regulation Number 25
Control of Emissions from Surface Coating, Solvents, Asphalt, Graphic Arts and Printing, and Pharmaceuticals
(Adopted 12/20/24, effective 02/14/25)
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Regulation Number 26
Control of Emissions from Engines and Major Stationary Sources
(Adopted 12/20/24, effective 02/14/25)
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Regulation Number 27
Greenhouse Gas Emissions and Energy Management for the Manufacturing Sector
(Admin Change 12/20/24, effective 02/14/25)
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Regulation Number 28
Building Benchmarking and Performance Standards
(Adopted 08/17/23, effective 10/15/23)
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Regulation Number 29
Emission Reduction Requirements for Lawn and Garden Equipment
(Adopted 02/16/24, effective 04/15/24)
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Regulation Number 30
Five Priority Air Toxics
(Adopted 02/17/25, effective 03/17/2025)
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Unofficial Version upon request - cdphe.aqcc@state.co.us