Provide federal funding to help replace or upgrade older diesel engines to reduce harmful air pollution.
One policy goal, tracked across every bill that has carried it.
What’s happening with Diesel Emissions Reduction Act of 2025?
The Diesel Emissions Reduction Act of 2025, known as S. 2235, reached the Senate legislative calendar on October 28, 2025. The full Senate must now vote on this bill, but the binding constraint is that Senate leadership determines the schedule for floor time. While reaching the calendar is a milestone that most bills do not achieve, many proposals fail to receive a final vote because time on the Senate floor is limited.
Updated July 9, 2026 · Generated by AI. Always verify with official sources.
Where it stands
Now carried by Diesel Emissions Reduction Act of 2025 (S. 2235 (119th)) →
Legislative Progress
How we got here
Every bill that has carried this goal, oldest first.
Died with Congress · Jan 3, 2025
Died when the 118th Congress ended without final passage. Bills must be reintroduced under a new number to be revived.
Reintroduced · Jan 3, 2025
Reintroduced from S. 2195 (118th), which died when its Congress ended.
S. 2195 (118th) →Reintroduced · Jan 3, 2025
Reintroduced from H.R. 5444 (118th), which died when its Congress ended.
H.R. 5444 (118th) →
Vehicles
Who’s behind it
Sheldon Whitehouse (D-RI)Wrote and sponsored the current bill.