U.S. Congress legislation · 119th Congress
SB3135: Cold Weather Diesel Reliability Act of 2026
Status: In committee, September 16, 2026
A bill 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.
What the bill says
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.
From the introduced text, September 16, 2026:
A BILL 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. SECTION 1. Short title This Act may be cited as the Cold Weather Diesel Reliability Act of 2025 . SECTION 2. Findings Congress finds that-- (1) diesel vehicles are vital for critical transportation and emergency services in cold weather regions; (2) in rural regions with prolonged freezing conditions, diesel exhaust fluid storage, supply, and system functionality are frequently unreliable and logistically impractical on a year-round basis; (3) automatic engine shutdowns and power reductions due to emissions control malfunctions in extreme cold pose serious, life-threatening risks; and (4) emissions safeguards under the Clean Air Act ( 42 U.S.C. 7401 et seq. ) were never intended to jeopardize human safety or impede critical mobility. SECTION 3. Definitions In this Act: (1) Administrator The term Administrator means the Administrator of the Environmental Protection Agency. (2) Covered manufacturer The term covered manufacturer means the manufacturer (as defined in section 216 of the Clean Air Act ( 42 U.S.C. 7550 )) of a covered vehicle or an engine of a covered vehicle. (3) Covered vehicle The term covered vehicle means an on-highway diesel vehicle or nonroad diesel equipment. SECTION 4. Diesel engine …
Sponsors
- Sullivan, Dan (R) · primary sponsor
- Lummis, Cynthia (R)
- Curtis, John (R)
- Murkowski, Lisa (R)
Latest actions
- : Placed on Senate Legislative Calendar under General Orders. Calendar No. 619.
- : Committee on Environment and Public Works. Reported by Senator Capito with an amendment in the nature of a substitute. Without written report.
- : Committee on Environment and Public Works. Ordered to be reported with an amendment in the nature of a substitute favorably.
- : Committee on Environment and Public Works. Hearings held. Hearings printed: S.Hrg. 119-407.
- : Read twice and referred to the Committee on Environment and Public Works.
- : Introduced in Senate
Subjects: Environmental Protection Agency (EPA), Administrative law and regulatory procedures, Atmospheric science and weather, Manufacturing, Environmental Protection, Motor vehicles
Common questions
- What is SB3135?
- SB3135 is a bill in Congress (119th Congress): Cold Weather Diesel Reliability Act of 2026.
- What does SB3135 do?
- In its own words: 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.
- What is the status of SB3135?
- In committee as of September 16, 2026. Latest action: Placed on Senate Legislative Calendar under General Orders. Calendar No. 619. (September 16, 2026).
- Who sponsored SB3135?
- Sullivan, Dan (R), with 3 co-sponsors.
- Where is the official record for SB3135?
- On the Congress website: https://www.congress.gov/bill/119th-congress/senate-bill/3135
Source: official Congress record. Tracked by Delilah, AI for legislation across all 50 states and Congress.