New Source Review (NSR) Permitting

  • NSR Permitting

    Congress established the New Source Review (NSR) Permitting program as part of the 1977 Clean Air Act Amendments.

News and Announcements

September 9, 2025 - EPA announces it is providing new guidance and intending to propose revisions to the New Source Review provisions addressing Begin Actual Construction. 

July 16, 2025 - Prevention of Significant Deterioration (PSD) and Nonattainment New Source Review (NNSR): Regulations Related to Project Emissions Accounting; Withdrawal of Proposed Rule

December 10, 2024 - Alternative Demonstration Approach for the 2024 Secondary Sulfur Dioxide National Ambient Air Quality Standard under the Prevention of Significant Deterioration Program Alternative Demonstration Approach

October 16, 2024 - Prevention of Significant Deterioration (PSD): Paragraph Designation Corrections

Contact Us About the New Source Review (NSR) Permitting to ask a question, provide feedback, or report a problem.
Last updated on September 9, 2025