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For most vehicles 1996-1999
Visual inspection of the emissions control system
Functional inspection of the emissions control system
On-board diagnostic system check (for most 2000 and newer model year vehicles)
Tailpipe emissions test (for pre-2000 model year vehicles)
For most vehicles 1976- 1995
Visual inspection of the emissions control system
Functional inspection of the emissions control system
On-board diagnostic system check (for most 2000 and newer model year vehicles)
Tailpipe emissions test (for pre-2000 model year vehicles)
Check Base ignition Timing
Low Pressure Fuel Evaporative Test
If your diesel truck, bus, or RV has a manufacturer’s GVWR over 14,000 pounds and operates on California roads, it may be covered by California’s Clean Truck Check program. OC Smog Lab provides mobile testing for eligible vehicles in Placentia, Anaheim, Fullerton, Brea, Yorba Linda, and nearby Orange County communities. We come to the vehicle, helping owner-operators and fleets avoid an extra trip and keep downtime to a minimum.
Most diesel engines from 2013 and newer need an OBD test with a CARB-approved device. Older diesel engines usually require a different type of inspection. Before booking, check the required test and deadline in your CTC-VIS account. Then call or text (323) 592-9360 with the vehicle year, engine year, fuel type, and GVWR. We’ll confirm whether our mobile service is the right fit and help you schedule the test. CARB registration and compliance fees are separate from our $175 testing service.
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Send us a quick message and we’ll happily map out the best service plan for you.