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Hazardous Air Pollutants
National Summary
Toxic air pollutants, also known as HAPs, are those pollutants that are known or suspected to cause cancer, other serious health effects, or adverse environmental effects. Other health effects can include damage to the immune system, as well as neurological, reproductive, developmental, respiratory, and other health problems.
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 282 items in 8 pages
Proposed Regulations 40 CFR 2 and 51 - Revisions to the Air Emissions Reporting Requirements; Proposed Rule 08/09/2023National
Final Regulations 40 CFR 52 - Air Plan Approval; California; Mojave Desert Air Quality Management District 12/04/2024National
Final Regulations 40 CFR 52 - Air Plan Approval; California; South Coast Air Quality Management District 10/21/2024National
Proposed Regulations 40 CFR 52 - Air Plan Approval; Connecticut; Regulations To Limit Premises-Wide Actual and Potential Emissions From Major Stationary Sources of Air Pollution 02/08/2021National
Final Regulations 40 CFR 52 - Air Plan Approval; Kentucky; Removal of Asbestos Requirements From Jefferson County 05/07/2021National
Proposed Regulations 40 CFR 52 - Air Plan Approval; KY; Removal of Asbestos Requirements From Jefferson County Regulations 03/04/2021National
Proposed Regulations 40 CFR 52 - Air Plan Approval; Rhode Island; Organic Solvent Cleaning Regulation 06/23/2023National
Proposed Regulations 40 CFR 52 - Air Plan Revisions; Arizona; Maricopa County Air Quality Department 11/08/2024National
Proposed Regulations 40 CFR 52 - Air Plan Revisions; California; Technical Amendments 04/22/2020National
Final Regulations 40 CFR 52 - Air Plan Revisions; California; Technical Amendments 07/15/2020National
Proposed Regulations 40 CFR 52 - Approval and Promulgation of Implementation Plans; Indiana; Volatile Organic Compound Emission Control Measures for Industrial Solvent Cleaning for Northwest Indiana 09/10/2013National
Proposed Regulations 40 CFR 52 - Clean Data Determination and Proposed Approval of Base Year Emissions Inventory; California; Los Angeles-South Coast Air Basin; 189(d) Plan for the 2006 24-Hour PM2.5 NAAQS 11/25/2024National
Final Regulations 40 CFR 60 - National Emission Standards for Hazardous Air Pollutants: Manufacture of Amino/Phenolic Resins Risk and Technology Review Reconsideration 10/15/2018National
Proposed Regulations 40 CFR 60 and 63 - Correction: Reconsideration of Certain New Source and Startup/ Shutdown Issues 12/05/2012National
Proposed Regulations 40 CFR 60 and 63 - Extended Comment Period for Proposed New Rule 06/26/2023National
Proposed Regulations 40 CFR 60 and 63 - National Emission Standards for Hazardous Air Pollutants for Chemical Recovery Combustion Sources at Kraft, Soda, Sulfite, and Stand-Alone Semichemical Pulp Mills 10/31/2019National
Final Regulations 40 CFR 60 and 63 - National Emission Standards for Hazardous Air Pollutants for Chemical Recovery Combustion Sources at Kraft, Soda, Sulfite, and Stand-Alone Semichemical Pulp Mills 11/05/2020National
Proposed Regulations 40 CFR 60 and 63 - National Emission Standards for Hazardous Air Pollutants for Portland Cement 07/18/2012National
Final Regulations 40 CFR 60 and 63 - National Emission Standards for Hazardous Air Pollutants for Reciprocating Internal Combustion Engines; New Source Performance Standards for Stationary Internal Combustion Engines; Court Vacatur 08/10/2022National
Proposed Regulations 40 CFR 60 and 63 - National Emission Standards for Hazardous Air Pollutants for the Portland Cement Manufacturing Industry and Standards of Performance for Portland Cement Plants 08/03/2012National
Proposed Regulations 40 CFR 60 and 63 - National Emission Standards for Hazardous Air Pollutants: Gasoline Distribution Technology Review and Standards of Performance for Bulk Gasoline Terminals Review 08/12/2022National
Proposed Regulations 40 CFR 60 and 63 - National Emission Standards for Hazardous Air Pollutants: Gasoline Distribution Technology Review and Standards of Performance for Bulk Gasoline Terminals Review; Proposed Rule 06/10/2022National
Final Regulations 40 CFR 60 and 63 - National Emission Standards for Hazardous Air Pollutants: Gasoline Distribution Technology Reviews and New Source Performance Standards Review for Bulk Gasoline Terminals; Final Rule 05/08/2024National
Final Regulations 40 CFR 60 and 63 - National Emission Standards for Hazardous Air Pollutants: Municipal Solid Waste Landfills Residual Risk and Technology Review; Correction 10/13/2020National
Proposed Regulations 40 CFR 60 and 63 - National Emission Standards for Hazardous Air Pollutants: Municipal Solid Waste Landfills Residual Risk and Technology Review; Correction 04/13/2021National
Final Regulations 40 CFR 60 and 63 - National Emission Standards for Hazardous Air Pollutants: Municipal Solid Waste Landfills Residual Risk and Technology Review; Final Rule 03/26/2020National
Proposed Regulations 40 CFR 60 and 63 - National Emission Standards for Hazardous Air Pollutants: Reciprocating Internal Combustion Engines and New Source Performance Standards: Internal Combustion Engines; Electronic Reporting 06/26/2023National
Final Regulations 40 CFR 60 and 63 - Reconsideration of Certain New Source Issues 04/24/2013National
Proposed Regulations 40 CFR 60 and 63 - Reconsideration of Certain Startup/Shutdown Issues: National Emission Standards for Hazardous Air Pollutants From Coal- and Oil-Fired Electric Utility Steam Generating Units 06/25/2013National
Proposed Regulations 40 CFR 60 and 63 - Review of Standards of Performance for Lead Acid Battery Manufacturing Plants and National Emission Standards for Hazardous Air Pollutants for Lead Acid Battery Manufacturing Area Sources Technology Review 02/23/2022National
Final Regulations 40 CFR 60, 61 and 63 - Delegation of New Source Performance Standards and National Emission Standards for Hazardous Air Pollutants for the States of Arizona and California 11/09/2022National
Final Regulations 40 CFR 60, 61, and 63 - Delegation of New Source Performance Standards and National Emission Standards for Hazardous Air Pollutants for the States of Arizona and California 05/27/2022National
Final Regulations 40 CFR 60, 62, and 63 - National Emission Standards for Hazardous Air Pollutants: Municipal Solid Waste Landfills Residual Risk and Technology Review; Correction 02/14/2022National
Proposed Regulations 40 CFR 61 - National Emissions Standards for Hazardous Air Pollutants; Delegation of Authority to Washington 07/21/2022National
Final Regulations 40 CFR 61 - National Emissions Standards for Hazardous Air Pollutants; Delegation of Authority to Washington 12/05/2022National
Proposed Regulations 40 CFR 61 - Revisions to National Emission Standards for Radon Emissions From Operating Mill Tailings 05/02/2014National
Proposed Regulations 40 CFR 61 and 40 CFR 63 08/30/2021National
Final Regulations 40 CFR 61 and 40 CFR 63 - National Emission Standards for Hazardous Air Pollutants; 10/22/2018National
Final Regulations 40 CFR 61 and 63 - Approval of the CAA Section 112(l), Authority for HAPs: Asbestos; Clerical Corrections to Incorporation by Reference of Inactive Waste Disposal Rules; New Hampshire 09/24/2018National
Final Regulations 40 CFR 61 and 63 - Approval of the Clean Air Act, Section 112(l), Authority for Hazardous Air Pollutants: Asbestos Management and Control; State of New Hampshire Department of Environmental Services 05/24/2024National