Cold Weather Diesel Reliability Act of 2025
Latest action · Nov 21, 2025 Referred to the House Committee on Energy and Commerce.
Progress
Where this bill reached, and when. A stage with no date was not reached; one that failed a vote and later carried shows the date it carried.
- IntroducedNov 21, 2025
- Passed HouseNot reached
- Passed SenateNot reached
- To the PresidentNot reached
- Became lawNot reached
Cosponsors 1
Members who signed on, in the order they did. All signed on Apr 21, 2026.
| Seat | Cosponsor | Signed on | |
|---|---|---|---|
| R-UT | Celeste Maloy | Apr 21, 2026 |
Committees 1
Where it was sent and what each committee and subcommittee did with it, in order.
| Chamber | Committee | What it did |
|---|---|---|
| House | Energy and Commerce Committee | Referred Nov 21, 2025 |
Actions 2
Everything that happened, newest first.
- Nov 21, 2025Introduced in House
- Nov 21, 2025Referred to the House Committee on Energy and Commerce.
Research
What has been written about this bill: committee reports, cost estimates, the sponsor’s authority statement, printed hearings and the Congressional Research Service’s work.
Constitutional authority
The sponsor’s statement, as printed in the Congressional Record, vol. 171, no. 197, November 21, 2025, page H4896.
Related bills 1
Companion bills and other measures the record links to this one.
| Bill | Title | Relationship | Latest action |
|---|---|---|---|
| S 3135 | Cold Weather Diesel Reliability Act of 2026 | Identical bill | Sep 16, 2026 |
Titles 2
Every title it has carried, official and short, at each stage.
- Official Title as Introduced
- To require the Administrator of the Environmental Protection Agency to authorize manufacturers of certain vehicles to suspend engine derate or shutdown functions in prolonged cold weather conditions, and for other purposes.
- Short Title(s) as Introduced
- Cold Weather Diesel Reliability Act of 2025
Subjects
Assigned by the Library of Congress. Policy area: Environmental Protection.
Text 1
Each version as it was printed, newest first.
- Nov 21, 2025Introduced in House
Everything here is as published by Congress: the summary is the Congressional Research Service's, the action wording is the clerks', and the subjects are the Library of Congress's. How far it got is read from the actions themselves, taking the most recent one of each kind, so a bill that failed a vote and later passed is shown as having passed. Records come from this bill on Congress.gov and govinfo.gov; cost estimates are the Congressional Budget Office's, and the hearings are the printed hearings GovInfo publishes, which can appear months after the hearing.
