H.R. 2140 · Where this bill is now
In the Senate
Passed the House Sep 15, 2026. Received Sep 16, 2026; no Senate vote yet
What this bill does
In plain words · AI-written from the official summaryExtends funding for cleaner diesel engines
This bill reauthorizes a program that has the Environmental Protection Agency giving out grants, rebates, and loans. The money helps people and organizations replace old diesel engines or add pollution control technology to existing engines. The program would continue through 2029.
How it affects you
If you operate diesel vehicles or equipment—whether you run a fleet, farm, construction business, or transit system—you could qualify for funding to upgrade to cleaner engines or add emissions control devices. For most other people, the main effect is indirect: cleaner air in areas where diesel vehicles operate.
Read the official summary (Introduced in House, Mar 14, 2025)
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.
Written by AI (Claude) using only the official summary by the Congressional Research Service, the Library of Congress’s nonpartisan research staff. It can miss nuance, so check the official summary and the bill text for details.
1st SessionH. R. 2140
AN ACT
Diesel Emissions Reduction Act of 2025
Sponsor: Rep. Doris O. Matsui (D-CA-7) · Introduced Mar 14, 2025 · Environmental Protection · 4 versions of the text
Sources: Congress.gov actions and votes · bill text from GovInfo · latest official action Sep 16, 2026: “Received in the Senate. Read twice. Placed on Senate Legislative Calendar under General Orders. Calendar No. 624.”
How Congress voted
Official roll callsHouse · On Motion to Suspend the Rules and Pass · Sep 15, 2026
Motion to Suspend the Rules and Pass Passed 343–79
| Party | Yes | No | Didn’t vote |
|---|---|---|---|
| Democrats | 212 | 0 | 2 |
| Independents | 1 | 0 | 0 |
| Republicans | 130 | 79 | 8 |
79 members voted against most of their party: 79 Republicans voted No.
Congress votes on whole bills and amendments, not on single sections.
Sections
The wording of this bill hasn’t changed across its 4 official versions.