Laws & Regulations

Addressing Ozone Layer Depletion

Access information on EPA's efforts to address ozone layer depletion through regulations, collaborations with stakeholders, international treaties, partnerships with the private sector, and enforcement actions under Title VI of the Clean Air Act.

Recent International Developments under the Montreal Protocol

Learn about EPA's efforts to address ozone layer depletion and climate change through proposed amendments to the Montreal Protocol on Substances that Deplete the Ozone Layer.

Responses to 40 CFR Part 75 Petitions - 2002

Find responses to petitions submitted by affected units subject to 40 CFR Part 75 in 2002.

Responses to 40 CFR Part 75 Petitions - 2012

Find responses to petitions submitted by affected units subject to 40 CFR Part 75 in 2012.

Minnesota (Part 60) NSPS and (Part 61) NESHAP Delegations

Minnesota has delegation of all existing and future "unchanged" Part 60 New Source Performance Standards (NSPS) and Part 61 National Emission Standards for Hazardous Air Pollutants (NESHAPs) standards.

Responses to 40 CFR Part 75 Petitions - 2008

Find responses to petitions submitted by affected units subject to 40 CFR Part 75 in 2008.

Newsletter: East Palestine Train Derailment Response, 3-21-2023

East Palestine Newsletter, 1st edition, serving East Palestine, Negley, Darlington and surrounding communities

Illinois (Part 60) NSPS and (Part 61) NESHAP Delegations

Illinois has delegation of all existing and future "unchanged" Part 60 New Source Performance Standards (NSPS) and Part 61 National Emission Standards for Hazardous Air Pollutants (NESHAPs) standards.

Michigan (Part 60) NSPS and (Part 61) NESHAP Delegations

Michigan has delegation of all existing and future "unchanged" Part 60 New Source Performance Standards (NSPS) and Part 61 National Emission Standards for Hazardous Air Pollutants (NESHAPs) standards.

Ban for Nonessential Products Containing Ozone-depleting Substances

Learn about EPA's efforts to address ozone layer depletion by banning the sale and introduction into interstate commerce of certain non-essential products manufactured with or containing ozone-depleting substances.

Ohio (Part 60) NSPS and (Part 61) NESHAP Delegations

Ohio has delegation of all existing and future "unchanged" Part 60 New Source Performance Standards (NSPS) and Part 61 National Emission Standards for Hazardous Air Pollutants (NESHAPs) standards.

Wisconsin (Part 60) NSPS and (Part 61) NESHAP Delegations

Wisconsin has delegation of all existing and future "unchanged" Part 60 New Source Performance Standards (NSPS) and Part 61 National Emission Standards for Hazardous Air Pollutants (NESHAPs) standards.

Frequent Questions About Quality-Assurance Requirements During the COVID-19 National Emergency

Q&A for continuous Emission Monitoring; Quality-Assurance Requirements During the COVID-19 National Emergency (40 CFR § 75.68), interim final rule (IFR)

Analysis of the Final Federal Good Neighbor Plan Addressing Regional Ozone Transport for the 2015 Ozone National Ambient Air Quality Standard

IPM analyses of the Good Neighbor Plan for 2015 Ozone NAAQS.

Updated General Conformity Applicability Questions and Answers

On this page General Conformity Regulation questions and answers.

Final Rule to Extend the Effective Date for Removal of Gasoline Volatility Waiver for Ohio and Nine Counties in South Dakota

Environmental Protection Agency is renewing the extension of the effective date of the removal of the 1-psi volatility waiver for gasoline-ethanol blends containing 10 percent ethanol in Ohio and nine counties in South Dakota.