Liberty Smog Check Test Center has been doing smog checks since 1978. Test Only Center, All Smog Checks, All Vehicles, Fast, Cars/Trucks/RVs, Diesels, EZ In/Out We take all credit cards. We are located behind Meinieke Car Care Center on Ramon Road between Cathedral Canyon and Date Palm. We open early Monday through Friday 7 a.m. to 4 p.m. and Saturday 8 a.m. to 12 p.m. Have a cup of coffee while you wait. Our waiting area is neat and clean.