Air Pollution Control
19.3 Smog Certificate Duration
- Dealers: Smog certificates issued to a motor vehicle dealer are
valid for 2 years, or until sold and registered to a retail buyer, whichever
- Private parties: Smog certificates are valid only 90 days for private
- Note: A transfer made within 90 days of a registration renewal
that required a biennial smog inspection does not require a new
smog certificate to be issued.