Congress moves to block California's stricter vehicle pollution rules
S.J.Res. 47 — A joint resolution providing for 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". · Filed by Markwayne Mullin (R-OK) · 13 cosponsors · Introduced Apr 4, 2025 · Referred to committee
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What it does
This joint resolution uses the Congressional Review Act to block an EPA rule that allowed California to set its own vehicle pollution standards stricter than federal limits. If passed, the rule would be nullified and the EPA would be prohibited from reissuing it without new congressional authorization. The resolution favors automakers and fuel producers over states seeking stricter emissions controls.
Why we flagged it
This is a straightforward Congressional Review Act disapproval resolution targeting an EPA rule that expanded state authority over vehicle emissions. It operates as a deregulatory measure by blocking stricter pollution standards, though it does so through transparent procedural means.
What the text implies
- If disapproved, the EPA cannot reissue the same rule without new congressional authorization, effectively locking in weaker federal standards for years.
- Other states that have adopted California's vehicle emission standards under Section 209 of the Clean Air Act would lose access to the NOx regulation, forcing them to choose between federal baseline or state-specific rulemaking.
The full analysis lists 3 implications of this text.
Who stands to gain
automotive manufacturers; petroleum refiners and fuel producers; heavy-duty engine manufacturers