The seller is required to provide the buyer with a valid smog inspection certification at the time of the sale or transfer. Smog certifications are good for 90 days from the date of issuance.

The inspection is not required on a transfer if a biennial smog certification was submitted to DMV within 90 days prior to the vehicle transfer date (a vehicle inspection report may be required for proof of certification).

Note: Smog certifications are not required for transfers that occur for any motor vehicle that is four or less model years old. (Determine the oldest-qualifying year model by subtracting three from the current year.) A smog transfer fee will be collected from the new owner. Unless the vehicle is coming from out of State or is a Diesel vehicle.