Clean Truck CheckMobile
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Vehicle Lookup

Do I need a
Clean Truck Check?

Free planning check. Enter your VIN and we compare NHTSA vehicle data against public CARB CTC scope rules to estimate likely test type or exemption items to verify.

Check your vehicle

Any exemptions to declare?
Your result

We'll show a planning estimate for likely test type, frequency, and caveats using public CARB sources.

How this works

Source-cited, not guessed.

  1. 1If you provide a VIN, we call NHTSA's free vPIC API to decode make, model, year, fuel, and GVWR class. The VIN is never stored.
  2. 2We apply CARB's scope gates (GVWR > 14,000 lb, diesel/alt-fuel/hybrid, CA operation) and exemption rules from the official rulebook.
  3. 3We show the likely test type with cited official sources and caveats you should verify before making compliance decisions.
  4. 4This is a planning tool — not legal compliance advice. Cross-check with cleantruckcheck.arb.ca.gov before final decisions.