H.J.Res. 89 · Where this bill is now
Became law
Public Law 119-17, Jun 12, 2025
What this bill does
In plain words · AI-written from the official summaryBlocks California's tougher vehicle emissions rules
This joint resolution would undo a decision by the Environmental Protection Agency that allowed California to set its own stricter emissions standards for new heavy-duty trucks, engines, and certain other diesel equipment starting in 2024. Normally, states cannot create their own emissions rules that differ from federal standards, but under the Clean Air Act, California can ask the EPA for a waiver, or permission, to do so. This resolution would reject that waiver.
How it affects you
Manufacturers of heavy-duty vehicles and diesel equipment would continue following federal emissions standards rather than California's stricter ones. Drivers and residents in California and any other states that might have adopted California's standards would see less restrictive pollution controls on new trucks and engines than the state's rules would have required.
Read the official summary (Public Law, Jun 12, 2025)
This joint resolution revokes the waiver granted to the California Air Resources Board regarding new emissions standards for new 2024 and subsequent model year on-road heavy-duty vehicles and engines, off-road diesel engines, and off-road diesel-fueled auxiliary power units. (Under the Clean Air Act, California may seek waivers of the preemption prohibiting states from enacting certain emission standards.)
Specifically, the joint resolution nullifies the Environmental Protection Agency notice titled California State Motor Vehicle and Engine and Nonroad Engine Pollution Control Standards; The ‘Omnibus’ Low NOX Regulation; Waiver of Preemption; Notice of Decision .
Written by AI (Claude) using only the official summary by the Congressional Research Service, the Library of Congress’s nonpartisan research staff. It can miss nuance, so check the official summary and the bill text for details.
1st SessionH.J.Res. 89
JOINT RESOLUTION
Providing congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the Environmental Protection Agency relating to "California State Motor Vehicle and Engine and Nonroad Engine Pollution Control Standards; The 'Omnibus' Low NOX Regulation; Waiver of Preemption; Notice of Decision".
Sponsor: Rep. Jay Obernolte (R-CA-23) · Introduced Apr 2, 2025 · Environmental Protection · 4 versions of the text
Sources: Congress.gov actions and votes · bill text from GovInfo · latest official action Jun 12, 2025: “Became Public Law No: 119-17.”
How Congress voted
Official roll callsHouse · On Passage · Apr 30, 2025
Passage Passed 225–196
| Party | Yes | No | Didn’t vote |
|---|---|---|---|
| Democrats | 10 | 195 | 8 |
| Republicans | 215 | 1 | 4 |
11 members voted against most of their party: 10 Democrats voted Yes and 1 Republicans voted No.
Congress votes on whole bills and amendments, not on single sections.
Sections
The wording of this bill hasn’t changed across its 4 official versions.