New Source Review (NSR) Permitting
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Congress established the New Source Review (NSR) Permitting program as part of the 1977 Clean Air Act Amendments.
Basic Information
- Learn about New Source Review:
- NSR basics: Core Principles of the EPA’s Air Permitting Programs
- What are permits?
- Who issues permits?
- Learn about General Conformity
Laws, Regulatory Actions, and Guidance
Where You Live
Types of CAA Permits
- Outer Continental Shelf and Deepwater Permits
- NSR Permitting (this website)
- Title V Operating Permits
- Tribal Permits
Environmental Justice in Air Permitting
In order to fulfill the directives in the Executive Order on Tackling the Climate Crisis at Home and Abroad and the Executive Order on Protecting Public Health and the Environment and Restoring Science to Tackle the Climate Crisis, EPA will commit to advancing environmental justice in permitting by expanding upon existing best practices for considering environmental justice in permitting.
- Environmental Justice in Air Permitting Principles
- EJ 2020 Action Agenda: EPA's Environmental Justice Strategy
- EPA Legal Tools to Advance Environmental Justice
- Interim Environmental Justice and Civil Rights in Permitting Frequently Asked Questions
- Plan EJ 2014: Considering Environmental Justice in Permitting
See the Office of External Civil Rights Compliance’s webpage for information about special circumstances applying to the State of Louisiana and its agencies.
News and Announcements
October 16, 2024 - Prevention of Significant Deterioration (PSD): Paragraph Designation Corrections
April 30, 2024 - Supplement to the Guidance on Significant Impact Levels for Ozone and Fine Particles in the Prevention of Significant Deterioration Permitting Program
April 30, 2024 - Effective Permitting Tools for Fine Particulate Matter under the Prevention of Significant Deterioration Permitting Program Fact Sheet
February 22, 2024 - Revisions to Regulations Related to Project Emissions Accounting