California Test Procedures for 2026 and Subsequent Model Year Zero-emission Vehicles and Plug-In Hybrid Electric Vehicles, in the Passenger Car, Light-duty Truck and Medium-duty Vehicle Classes.

California Exhaust Emission Standards and Test Procedures for 2004 and Subsequent Model Heavy-duty Otto-cycle Engines and Vehicles.

Exemptions from Average Fuel Economy Standards; Passenger Automobile Average Fuel Economy Standards.

Fuel System Integrity of Hydrogen Vehicles; Compressed Hydrogen Storage System Integrity; Incorporation by Reference.

Parts and Accessories Necessary for Safe Operation; Auxiliary Fuel Tanks.

Guidelines for Certification of 2003 and Subsequent Model-year Federally Certified Light-duty Motor Vehicles for Sale in California.

CAFE Environmental Impact Statement Model Year 2022-2025.

California State Motor Vehicle Pollution Control Standards - Notices.

Motor Vehicle Emissions (Extracts).

Tampering Enforcement Policy Memoranda - Reference Emission Control Equipment.