S 3135
Cold Weather Diesel Reliability Act of 2025
Jurisdiction
US Congress
Session
119th Congress (2025-2026)
Last updated at
Jun 14, 2026, 7:39 AM
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Sign in to take action- Introduced
- Passed Senate
- Passed House
- To President
- Became Law
Bill overview
This bill, the Cold Weather Diesel Reliability Act of 2025, aims to improve the reliability of diesel vehicles in extremely cold weather conditions. It directs the Environmental Protection Agency (EPA) to allow manufacturers to temporarily suspend certain emissions control functions when temperatures are at or below freezing, ensuring continued vehicle operation for critical transportation and emergency services. The bill also proposes a year-round exemption for vehicles operating in high-latitude regions or facing logistical challenges with diesel exhaust fluid systems due to freezing temperatures.
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