Diesel Emissions Reduction Act of 2025
Latest action (15 Sep 2026): On motion to suspend the rules and pass the bill Agreed to by the Yeas and Nays: (2/3 required): 343 - 79 (Roll no. 304).
What this bill does
H.R. 2140, the Diesel Emissions Reduction Act of 2025, would amend the Energy Policy Act of 2005 to extend the authorization for the federal diesel emissions reduction program. Specifically, it changes the program's authorization end date from 2024 to 2029, allowing the program to continue operating and receiving funding authority for an additional five years.
The diesel emissions reduction program provides funding to reduce harmful emissions from older diesel engines, and this extension would primarily affect entities eligible to participate in or benefit from the program, such as state and local governments, fleet operators, and other organizations that use diesel equipment or seek to upgrade or retrofit diesel engines to reduce pollution. Communities near diesel-heavy operations, such as ports, construction sites, or transit systems, could also be indirectly affected if the program continues to fund emissions-reduction projects in those areas.
The bill was introduced in March 2025 by Rep. Doris Matsui and passed the House on September 15, 2026, by a vote of 343 to 79 under a procedure requiring a two-thirds majority. It now goes to the Senate for consideration. If the Senate passes it, either in this form or after amendments requiring House agreement, it would then go to the President to be signed into law or vetoed.
Plain-English summary generated by Bill100 AI from the official record. Always verify against the source below.
Official summary
This bill passed in the House on September 15, 2026 and goes to the Senate next for consideration.
Timeline
15 Sep 2026
On motion to suspend the rules and pass the bill Agreed to by the Yeas and Nays: (2/3 required): 343 - 79 (Roll no. 304).
Common questions
- What does H.R. 2140 do?
- H.R. 2140, the Diesel Emissions Reduction Act of 2025, would amend the Energy Policy Act of 2005 to extend the authorization for the federal diesel emissions reduction program. Specifically, it changes the program's authorization end date from 2024 to 2029, allowing the program to continue operating and receiving funding authority for an additional five years. The diesel emissions reduction program provides funding to reduce harmful emissions from older diesel engines, and this extension would primarily affect entities eligible to participate in or benefit from the program, such as state and local governments, fleet operators, and other organizations that use diesel equipment or seek to upgrade or retrofit diesel engines to reduce pollution. Communities near diesel-heavy operations, such as ports, construction sites, or transit systems, could also be indirectly affected if the program continues to fund emissions-reduction projects in those areas. The bill was introduced in March 2025 by Rep. Doris Matsui and passed the House on September 15, 2026, by a vote of 343 to 79 under a procedure requiring a two-thirds majority. It now goes to the Senate for consideration. If the Senate passes it, either in this form or after amendments requiring House agreement, it would then go to the President to be signed into law or vetoed.
- Has H.R. 2140 become law?
- Not yet. As of 15 Sep 2026, H.R. 2140 is passed house (senate next).
- Who sponsored H.R. 2140?
- H.R. 2140 was sponsored by Rep. Doris Matsui [D-CA7] (Democrat-CA), with 0 cosponsors.
- What's the latest action on H.R. 2140?
- On motion to suspend the rules and pass the bill Agreed to by the Yeas and Nays: (2/3 required): 343 - 79 (Roll no. 304). (15 Sep 2026).
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