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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
California Clean Truck Check generally applies when all three are true:
• The manufacturer’s GVWR is greater than 14,000 pounds.
• The vehicle uses diesel, diesel-hybrid, natural gas, propane, or another alternative fuel.
• It operates on California public roads—even if registered in another state.
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Send us a quick message and we’ll happily map out the best service plan for you.