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Executive Summary: EPA's Waiver Decision on California's Greenhouse Gas Emission Standards for New Motor Vehicles

This letter from EPA Administrator Stephen Johnson to Governor Schwarzenegger denies California's request for a waiver of Federal preemption for motor vehicle greenhouse gas emission standards submitted by the California Air Resources Board (CARB).

Executive Summary: EPA's Waiver Decision on California's Greenhouse Gas Emission Standards for New Motor Vehicles (pdf) (42.1 KB, June 2009)

Executive Summary: EPA's Waiver Decision on California's Greenhouse Gas Emission Standards for New Motor Vehicles

Regulations for Emissions from Vehicles and Engines