California Assembly-line Test Procedures for 2001 and Subsequent Model-year Passenger Cars, Light-duty Trucks and Medium-duty Vehicles.

The Safer Affordable Fuel-efficient (SAFE) Vehicles Rule III for Model Years 2022 to 2031 Passenger Cars and Light Trucks.

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

Fuel System Integrity of Hydrogen Vehicles.

Compressed Hydrogen Storage System Integrity.

California Exhaust Emission Standards and Test Procedures for 2018 and Subsequent Model Zero-emission Vehicles and Hybrid Electric Vehicles, in the Passenger Car, Light-duty Truck and Medium-duty Vehicle Classes.

California Exhaust Emission Standards and Test Procedures for 1985 Through 2003 Model Heavy-duty Diesel Engines and Vehicles.

Electric-powered Vehicles: Electric Powertrain Integrity Global Technical Regulation No. 20; Incorporation by Reference.

Regulatory Review - 2021.

Control of Emissions from New and In-use Highway Vehicles and Engines.