United States
S. 3135
Cold Weather Diesel Reliability Act of 2025
The bill would require the EPA to allow manufacturers of certain vehicles to temporarily disable engine shutdown or power-reduction features during extended cold weather periods. This aims to improve diesel vehicle reliability and performance in harsh winter conditions while those protective functions are suspended.[AI-Generated]
Reported by committee 16 September 2026
Record as of 16 September 2026 — the most recent action in the official record. Status can lag; each step below carries its own date.
- 16 September 2026 Reported by committee
What's next: Floor scheduling (leadership decides if and when it gets a vote)
- 16 September 2026 Placed on calendar (Senate)
2 more actions
- 16 September 2026 Committee on Environment and Public Works. Ordered to be reported with an amendment in the nature of a substitute favorably.
- 11 March 2026 Committee on Environment and Public Works. Hearings held.
- 6 November 2025 Referred to committee
- 6 November 2025 Introduced in Senate
This path starts where the bill does — its first action in the official record. Routine procedural steps sit in the “more actions” rows above rather than on the main line.
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