Bill would let diesel vehicles skip emissions shutdowns in extreme cold
Placed on the calendarS. 3135Latest action
Sponsor: Dan Sullivan · Senator · AK
AIDecoded by AI · checked against the recordRead the official text
Official title: Cold Weather Diesel Reliability Act of 2026
119th Congress
Topics: Environment & energy
Introduced:
Read the official bill on Congress.govIn plain words
The plain-language version comes first. The official text is always the reference.
S 3135 lets diesel vehicles bypass emissions shutdown features below 20°F, permanently for farm gear and Alaska-area vehicles.
40-second read · 4 questions answered below
What does this do?
The bill directs the EPA to change rules so diesel vehicles and equipment can keep running in very cold weather even if emissions controls fail or run out of diesel exhaust fluid. Below 20°F, manufacturers could temporarily disable automatic shutdown or power-reduction features, with normal operation resuming once temperatures rise above 20°F. Farm equipment and vehicles operating mainly north of 59 degrees north latitude could have these features permanently disabled rather than just temporarily.
Who does it affect?
This affects diesel truck and farm equipment manufacturers, trucking and farming businesses, and residents of cold, rural areas like Alaska who depend on diesel vehicles.
Why does it matter?
The bill carves out exceptions to standard pollution-control enforcement mechanisms, though it does not waive the underlying emissions standards themselves, only the shutdown/derate enforcement tool in these specific cases.
AI-drafted summary. Check it against the official text before you act on it.
Based on the “Reported to Senate” text of Sep 16, 2026.
Read the official bill on Congress.govMake the call
Where does it stand?
- IntroducedNov 6, 2025
- Senate committee
- Senate voteYou are here · Sep 16, 2026
- House
- The president's desk
Right now: it was placed on the , and the official record shows no floor action on it since. If the House changes it, it goes back to the Senate before reaching the president.
Latest action: — Placed on Senate Legislative Calendar under General Orders. Calendar No. 619.