California Code of Regulations (CCR) Title 13, Section 1968.1: Malfunction and Diagnostic System Requirements - 1994 and Subsequent Model -Year passenger Cars, Light-duty Trucks, and Medium-duty Vehicles and Engines.
California Code of Regulations (CCR), Title 13, Section 1968.1: Malfunction and Diagnostic System Requirements - 1994 and Subsequent Model - Year passenger Cars, Light-duty Trucks, and Medium-duty Vehicles and Engines (OBDII).