AN ACT CONCERNING THE REPEAL OF CALIFORNIA VEHICLE EMISSION STANDARDS AND THE UTILIZATION OF UNITED STATES ENVIRONMENTAL PROTECTION AGENCY VEHICLE EMISSIONS STANDARDS.

HB 5356 would end the requirement for the state to follow California's vehicle emission standards and instead mandate that all vehicle emission standards align with those set by the U.S. Environmental Protection Agency (EPA). This bill directly affects the state's regulatory approach to vehicle emissions, impacting car manufacturers selling in the state and the state's environmental compliance framework. The key provision repeals the existing law requiring adherence to California standards and substitutes it with EPA standards as the baseline. This change would simplify compliance for automakers operating in the state but shifts oversight from California's more stringent rules to federal standards.