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CoalitionLow RiskMultistate

Connecticut-led coalition challenges rollback of CAFE standards

National Highway Traffic Safety AdministrationOctober 2, 2026Connecticut Attorney General

Summary

Connecticut Attorney General William Tong joined a coalition of states and local governments in filing suit against NHTSA over its rule weakening fuel economy standards for new passenger cars and light trucks. The lawsuit alleges the rule violates the agency’s statutory mandate and the Administrative Procedure Act; no penalty or final remedy is reported.

Contract Impact

This action does not allege a privacy violation, so it does not indicate a need to revise privacy-specific data processing, consent, or breach-notification clauses. Automotive companies should review supplier, manufacturer, and vehicle sales or distribution agreements for clear allocation of responsibility for CAFE compliance, fuel economy specifications and representations, regulatory testing and documentation, CAFE credit ownership or trading, and change-in-law obligations if standards are revised or litigation changes the applicable rules.

Contract Search Terms

CAFE compliance warrantyfuel economy representationsvehicle efficiency specificationsregulatory change-in-law clauseCAFE credit allocationfuel economy testing documentationregulatory reporting obligations

Laws Cited

Administrative Procedure ActEnergy Policy and Conservation Act

Violation Types

Entity Details

Entity

National Highway Traffic Safety Administration

Industry

Automotive

Multistate Coalition

CaliforniaArizonaColoradoDelawareHawai‘iIllinoisMaineMarylandMassachusettsMichiganMinnesotaNew JerseyNew YorkNorth CarolinaOregonRhode IslandVermontWashingtonWisconsinDistrict of ColumbiaCity of ChicagoCity and County of DenverCity of New YorkCity and County of San Francisco

Official Sources

Source Evidence

Entity Name
"filing a lawsuit against the National Highway Traffic Safety Administration"
Laws Cited
"violates the Administrative Procedure Act and the Energy Policy and Conservation Act."
Violation description
"significantly weakens fuel economy standards"
Event Date
"10/02/2026"

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Colorado joined a coalition of states and local governments in suing the National Highway Traffic Safety Administration over its rule weakening fuel economy standards for new passenger cars and light trucks. The coalition alleges the rule violates federal law; the press release does not report a penalty or a court ruling.

MN

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Minnesota Attorney General Keith Ellison and a coalition of 26 states, counties, and cities filed a lawsuit challenging NHTSA’s rule weakening fuel-economy standards for new cars and light trucks. The coalition alleges the rule violates the Administrative Procedure Act and the Energy Policy and Conservation Act; the press release describes a lawsuit filing, not a monetary penalty or final judgment.

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