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Technical and administrative updates only. v5 reflects the bill's enactment into Public Law 119-17, adding the approval date and legislative history, whereas v4 was the enrolled bill version. There are no substantive policy changes between the two versions.

H.J.Res. 89·119th Congress·Introduced Apr 2, 2025

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".

Became Public LawEnvironmental ProtectionMajor
View bill text
Sponsor
Rep. Obernolte, Jay [R-CA-23]
Committees
Energy and Commerce Committee (primary)
Last action
Jun 12, 2025

Bottom line

Congress has used the Congressional Review Act to block an EPA rule that would have allowed California to enforce stricter nitrogen oxide (NOx) emissions standards for vehicles, thereby preventing those standards from taking effect.

What it actually does

This joint resolution utilizes the Congressional Review Act (CRA) to nullify a specific rule issued by the Environmental Protection Agency (EPA). The nullified rule pertains to the EPA's decision to grant California a waiver of preemption, allowing the state to implement its "Omnibus" Low NOX Regulation for motor vehicles and engines. By disapproving this EPA rule, Congress effectively prevents California from enforcing these stricter nitrogen oxide (NOx) emissions standards.

Proponents argue

Proponents of this resolution argue that the EPA's waiver decision represented an overreach of federal regulatory authority or imposed undue burdens on the automotive industry and consumers. They contend that a uniform national standard for vehicle emissions is preferable to a patchwork of state-specific regulations, which can increase manufacturing costs and complexity. They may also assert that California's proposed standards are too stringent or economically disadvantageous without providing commensurate environmental benefits.

Opponents contend

Opponents of this resolution, who supported the EPA's original rule, argue that it undermines states' rights to address critical local environmental concerns and hinders efforts to combat air pollution. They emphasize California's unique authority under the Clean Air Act to set more protective standards, asserting that the waiver is crucial for reducing harmful NOx emissions, which contribute to smog and respiratory illnesses, and that the EPA's decision was a legitimate exercise of its authority.

The bill text is extremely short and can be read in under a minute, making it highly accessible for immediate understanding of its direct action.

Resolved by the Senate and House of Representatives... and such rule shall have no force or effect.

Disapproval of EPA's California Low NOX Waiver Rule

prominently featuredstraightforward

This provision explicitly states that Congress disapproves of the rule submitted by the Environmental Protection Agency (EPA) concerning "California State Motor Vehicle and Engine and Nonroad Engine Pollution Control Standards; The `Omnibus' Low NOX Regulation; Waiver of Preemption; Notice of Decision." As a direct consequence of this disapproval, the EPA's rule, which would have granted California a waiver to implement its stricter nitrogen oxide (NOx) emissions standards, is nullified and will not take effect. This action prevents California from moving forward with these specific emissions regulations.

GroupImpactMechanismScale
GroupEnvironmental Protection Agency (EPA)ImpactAuthority curtailedMechanismCongressional Review Act (CRA) nullification of a specific regulatory decision.ScaleDirect reversal of a significant regulatory action.
GroupState of CaliforniaImpactAbility to implement stricter emissions standards hinderedMechanismLoss of the EPA waiver necessary for its "Omnibus" Low NOX Regulation to take effect.ScaleSignificant impact on state environmental policy and air quality initiatives.
GroupAutomotive ManufacturersImpactRegulatory landscape alteredMechanismPrevention of a specific state-level emissions standard from taking effect, potentially simplifying compliance requirements across the U.S. market.ScalePotentially broad impact on vehicle design, production, and associated costs for the U.S. market.
GroupPublic Health and Environment AdvocatesImpactSetback for efforts to reduce air pollutionMechanismNullification of a rule intended to facilitate lower NOx emissions, which contribute to smog and respiratory illnesses.ScaleRegional and potentially national impact on air quality and public health outcomes.

Supporters argue

Supporters of this disapproval argue that it prevents regulatory overreach by the EPA and ensures a more uniform national standard for vehicle emissions, which can reduce compliance costs and complexity for automotive manufacturers. They may also contend that California's standards are economically burdensome or technologically premature, hindering innovation or increasing consumer costs.

Critics contend

Opponents argue that this action undermines California's long-standing authority under the Clean Air Act to set more stringent emissions standards, which are vital for addressing severe air quality issues in the state. They contend it will lead to increased NOx emissions, harming public health and environmental quality, and sets a dangerous precedent for federal interference in state environmental protection.

Tradeoffs

This provision highlights the inherent tension between federal regulatory uniformity and states' rights to set more stringent environmental standards, particularly California's unique role under the Clean Air Act. It also navigates the balance between economic considerations for the automotive industry and the public health and environmental protection goals associated with reduced NOx emissions.

About this analysis. AI-Generated from the official bill text and available committee reports. Gaps in available data are noted explicitly. Verify important details with the official Congress.gov record.

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