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Cold Weather Diesel Reliability Act of 2026

On calendar: it can still change before the session ends.

US S 3135 · Senate Bill · 119th Congress

Stage
On calendar
Started in
Senate
Sponsors
4
Latest action
Sep 16, 2026

What it does

The Cold Weather Diesel Reliability Act of 2025 would require the EPA Administrator to revise Clean Air Act regulations within 180 days of enactment to allow manufacturers of on-highway and nonroad diesel vehicles to temporarily suspend engine derate or shutdown functions triggered by emissions control faults when temperatures are at or below 0°C, provided normal emissions controls resume above that temperature and continued operation is necessary to prevent danger or loss of essential services in remote cold-weather areas. The bill would also grant year-round exemptions from diesel exhaust fluid system requirements for vehicles primarily operated north of 59°N latitude or in areas where…

No official summary is available here. This one was written by AI from the bill’s text.

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Where it stands

  1. Introduced (Done)

    Nov 6, 2025

  2. Committee (Current step)

    On calendar · Sep 16, 2026

  3. Floor (Not started)

  4. Law (Not started)

What moved

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Who is involved

Sponsors

The lawmakers who put their names on it, lead sponsors first.

In the news

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Where it goes next

While a bill can still move, the questions are about people and money.

Work with this bill

Cold Weather Diesel Reliability Act of 2026 | 52