H.J.Res. 89: 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".

H.J. Res. 89 cancels one EPA action outright: the agency's January 6, 2025 decision approving California's waiver for its “Omnibus” Low NOX regulation. Congress used the Congressional Review Act, which is the fast-track tool lawmakers use when they want to erase a rule rather than rewrite it.

The practical effect is simple: the EPA approval is treated as if it never took effect. California's stricter rule was tied to that approval, so this resolution removes the federal action that let the state enforce that program against covered engines and vehicles.

The fight here is bigger than one Federal Register notice. California has long pushed tougher air-pollution limits than federal standards, while manufacturers and some lawmakers argue that a separate California rulebook raises costs and complicates production.

This resolution does not replace the EPA decision with a new standard — it just nullifies the approval that California needed. And because Congress.gov says H.J. Res. 89 became Public Law 119-17 on June 12, 2025, that reversal is no longer hypothetical.