New Source Review (NSR) Permitting
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NSR Permitting
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
Where You Live
Laws, Regulatory Actions, and Guidance
Types of CAA Permits
Clean Air Act Permitting includes:
- Outer Continental Shelf and Deepwater Permits
- NSR Permitting (this website)
- Title V Operating Permits
- Tribal Permits
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