New Source Review Permitting Improvement Act (H.R. 161)
IntroducedLatest Action
Placed on the Union Calendar, Calendar No. 542.
4/28/2026 • House
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.
Introduced in House • 1/3/2025
Topics & Subjects
Congressional Votes (0)
No recorded votes yet
Roll call votes will appear here as the bill moves through Congress
Related Federal Spending
Sponsor & Cosponsors (22)
Party Breakdown
Sponsor
Cosponsors (21)
Bill Journey
Originated in the House
Introduced
January 3, 2025
Committee Review
December 10, 2025
Forwarded by Subcommittee to Full Committee by the Yeas and Nays: 12 - 11.
Floor Debate
Passed Chamber
Other Chamber
President
Enacted into Law