New Source Review Permitting Improvement Act

Summary

New Source Review Permitting Improvement Act This bill modifies terminology for purposes of the New Source Review (NSR) permitting program of the Environmental Protection Agency (EPA). In order for a change to a stationary source to be a modification (a change to a stationary source that increases the air pollutant emissions or results in new pollutants) for purposes of the NSR permitting program, the maximum hourly emission rate achievable by such source must be higher than the maximum hourly rate achievable by such source during any hour in the 10-year period preceding the change. A change at a stationary source is not considered to be a modification under the bill if it is designed to (1) reduce the amount of any air pollutant emitted; or (2) restore, maintain, or improve the reliability of operations at, or safety of, the source. However, such changes are not excepted if the EPA determines the increase in the maximum achievable hourly emission rate from such change would cause an adverse effect on human health or the environment. Construction , in connection with a major emitting facility (a type of stationary source), does not include a change at such a facility that does not result in a significant emissions increase or a significant net emissions increase. In relation to major emitting facilities in nonattainment areas, the terms modifications and modified do not include changes at such facilities that do not result in a significant emissions increase or a significant net emissions increase.

Summary from the Congressional Research Service. How we handle summaries

Where it stands

Out of committee and scheduled for a vote by the full chamber.

House Committee on Energy and Commerce · U.S. House of Representatives

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Cosponsors

Related bills

• S. 5363A bill to amend sections 111, 169, and 171 of the Clean Air Act to clarify when a physical change in, or change in the method of operation of, a stationary source constitutes a modification or construction, and for other purposes.Related bill

As identified by Congress.gov.

Full history

1. Apr 28, 2026

   Introduced

   Placed on the Union Calendar, Calendar No. 542.

   U.S. House

2. Apr 28, 2026

   Placed on the Union Calendar, Calendar No. 542.

3. Apr 28, 2026

   Placed on the Union Calendar, Calendar No. 542.

4. Apr 28, 2026

   Placed on the Union Calendar, Calendar No. 542.

5. Apr 28, 2026

   Reported out of committee

   Reported (Amended) by the Committee on Energy and Commerce. H. Rept. 119-625.

Read the record

• Read on Congress.gov (opens in a new tab) The official record on Congress.gov.