Clean Truck Check (CTC)
California's Clean Truck Check emissions program - registration, compliance fee, and periodic testing kept current so your trucks stay legal in CA.
Clean Truck Check is California's heavy-duty emissions program (the HD I/M rule) - and it replaced the old smog/PSIP requirements for nearly every heavy truck that operates in the state. Miss the registration or a periodic test and your unit can be barred from running CA lanes. We register your fleet in the CTC/TRUCRS system and track each unit's testing deadline so you stay legal in California without thinking about it.
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Clean Truck Check (CTC) - FAQ
What is Clean Truck Check?
California's heavy-duty Inspection and Maintenance (HD I/M) program. Most non-gasoline trucks over 14,000 lbs operating in California must register, pay an annual compliance fee, and pass periodic emissions tests. We handle the registration and reporting and track the testing schedule.
Does CTC apply if I'm not based in California?
Yes. Clean Truck Check applies to any subject vehicle that operates in California, regardless of where it's registered. If you run CA lanes, you need to comply - we get you registered and keep you current.
How often is testing required?
The program phases toward periodic compliance testing (multiple times per year for most trucks). We track each unit's deadline so a missed test doesn't pull a truck out of California.