Diesel Emissions Reduction Act of 2025
The source supplies the latest action, but no lifecycle stage.
Latest action (16 Sep 2026): Received in the Senate. Read twice. Placed on Senate Legislative Calendar under General Orders. Calendar No. 624.
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
Diesel Emissions Reduction Act of 2025
This bill reauthorizes through FY2029 a diesel emissions reduction program under which the Environmental Protection Agency provides grants, rebates, or loans for replacing diesel engines or retrofitting the engines with pollution control technologies.
Timeline
16 Sep 2026
Received in the Senate. Read twice. Placed on Senate Legislative Calendar under General Orders. Calendar No. 624.
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?
- The source does not supply a confirmed lifecycle stage for H.R. 2140. Check the latest action and official source below.
- Who sponsored H.R. 2140?
- H.R. 2140 was sponsored by Rep. Matsui, Doris O. [D-CA-7] (D-CA), with 3 cosponsors.
- What's the latest action on H.R. 2140?
- Received in the Senate. Read twice. Placed on Senate Legislative Calendar under General Orders. Calendar No. 624. (16 Sep 2026).
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