Project 2025 Tracker / What’s done, what’s next

13. Environmental Protection Agency · Notable

Bar other states from adopting California greenhouse gas standards

Partially done

Printed page 426 13. Environmental Protection Agency

“Ensure that other states can adopt California’s standards only for traditional/criteria pollutants, not greenhouse gases.”

What has happened

  1. Partially done

    The standards other states were adopting no longer exist. Congress disapproved EPA's waiver for California's Advanced Clean Cars II program — the greenhouse gas and zero-emission vehicle rule a dozen states had taken up under §177 — and the Omnibus low-NOx waiver on the same day, and the President signed both. That closes the route for those programs without settling the question the Quote asks: EPA has taken no position that §177 lets other states adopt California's criteria pollutant standards but not its greenhouse gas standards.

Research log

What was searched, and what didn’t count as evidence

Research notes

  • Congress got there before EPA did, and by a blunter route: nullifying the waivers removes the standards other states could opt into under CAA §177, rather than establishing that §177 reaches only criteria pollutants.
  • partial and not done: the two resolutions cover Advanced Clean Cars II and the Omnibus low-NOx rule; California’s other greenhouse gas programs and any future waiver are unaffected, and EPA has adopted no position on the scope of §177.
  • #1085 carries the waiver-scope ask and reads the same laws.
Action
restrict
Object
state adoption of California vehicle standards
ID
1086