California State Motor Vehicle Pollution Control Standards; Waiver of Federal Preemption for Off-Cycle Emission Test Requirements; Notice of Decision

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EPA today, pursuant to section 209(b) of the Clean Air Act (Act), 42 U.S.C. 7543(b), is granting California its request for a waiver of federal preemption for its regulations controlling emissions from off-cycle aggressive driving and air-conditioning usage for motor vehicles under 8,501 pounds gross vehicle weight rating. The California Air Resources Board (CARB) requested that EPA grant California a waiver of federal preemption for its regulations which incorporate EPA's two supplemental federal test procedures (SFTP) and associated certification standards.