What is the Specially Constructed Vehicle Emission Control Program?
Existing law requires most 1976 and newer model year vehicles to pass an emissions control inspection (smog check) prior to original registration, transfer of ownership, and every second annual renewal. Since Specially Constructed Vehicles (SPCNS) are homemade and do not have a manufacturer-assigned model year, they must be taken to a Bureau of Automotive Repair (BAR) Referee Station for the original inspection. Upon completion of the inspection, the referee will affix a tamper-resistant label to the vehicle and issue a certificate that establishes the model-year for future inspection purposes. Per California Vehicle Code ยง4750.1, the first 500 program applicants in each calendar year may choose whether the inspection is based on the model-year of the engine used in the vehicle or the vehicle model-year. If the engine or the vehicle does not sufficiently resemble one previously manufactured, the referee will assign 1960 as the model-year. After the first 500 vehicles have been register