BlogClean Truck Check Reporting

Clean Truck Check Insights

Stay informed about CARB deadlines, emissions testing, reporting requirements, and regulatory updates affecting California fleets.

Truck driver’s view of commercial trucks on a highway, with Clean Truck Check Reporting branding for CARB compliance.

Clean Truck Check 5-Day Pass: What Owners Need to Know

Clean Truck Check program includes a temporary pass that allows an approved vehicle to operate in California for five consecutive days. The key word is consecutive. The pass does not provide five separate travel days that can be saved and used throughout the year.

October 26, 20267 min read

What Is Clean Truck Check Compliance Certificate and How Do You Get One?

California has no shortage of CARB rules, forms, certificates, and acronyms. So when someone asks for a “CARB certificate,” the first question should be:

October 22, 20269 min read

Clean Truck Check Renewal: What Must Vehicle Owners Complete Each Year?

Clean Truck Check renewal is not one annual form or one deadline that applies the same way to every vehicle. For vehicles subject to California's Clean Truck Check program, staying compliant involves several recurring responsibilities: keeping vehicle information current in CTC-VIS, paying the annual compliance fee, and completing required emissions testing by each vehicle's applicable deadlines.

October 12, 20266 min read

Clean Truck Check Deadlines and Testing Frequency Explained

Passing one emissions test does not finish your Clean Truck Check responsibilities. California's program is built around recurring compliance. Covered heavy-duty vehicles must stay on a testing schedule, and the next deadline depends on the individual vehicle rather than one statewide date that applies to every truck.

September 25, 20268 min read

white american truck parked on the forest road

California Clean Truck Check Compliance Schedule

See how Clean Truck Check deadlines are determined, when emissions tests and annual fees are due, and which schedules apply to different trucks.

July 31, 202611 min read

Technician performing a Clean Truck Check emissions inspection on a semi-truck.

OBD or Opacity: Which Emissions Test Does Your Truck Need?

Not all trucks need the same CARB emissions test. See how engine model year, fuel type, and OBD status determine OBD scans vs. opacity testing.

July 24, 202610 min read