Clean Truck Check testers in Siskiyou County
7 testing businesses in Siskiyou County are on CARB's public tester list, in 7 cities. 6 (86%) offer mobile testing, 4 do smoke opacity tests and 5 test motorhomes.
Testers by city
Dorris
-
Outlaw Equipment Repair
- Mobile testing
- OBD test
Fort Jones
-
Scott Valley Disposal Inc.
- OBD test
- Smoke opacity
- Motorhomes
Hornbrook
-
Blake Burleigh
- Mobile testing
- OBD test
- Smoke opacity
- Motorhomes
Montague
-
MHE Parts and Repair Inc.
- Mobile testing
- OBD test
- Smoke opacity
- Motorhomes
Mount Shasta
-
Skinners Truck Repair
- Mobile testing
- OBD test
- Smoke opacity
- Motorhomes
Weed
-
Reliable Workforce Services
- Mobile testing
- OBD test
- Motorhomes
Yreka
-
A1 automotive
- Mobile testing
- OBD test
Frequently asked questions
How many Clean Truck Check testers are in Siskiyou County?
CTC Finder lists 7 testing businesses in Siskiyou County from CARB's public tester list (7 credentialed testers), last checked November 1, 2026. Listing on CARB's list is optional, so the real number can be higher.
Is there mobile Clean Truck Check testing in Siskiyou County?
Yes. 6 listed businesses in Siskiyou County offer mobile testing, which means the tester comes to your yard. Use the Mobile filter above to see them.
How much does a Clean Truck Check test cost in Siskiyou County?
Testers set their own prices. Published prices for an OBD test are usually $50–$135 per vehicle; smoke opacity tests for older trucks often cost more, and mobile testers may add a trip fee. See the cost guide.
Source: CARB's public Clean Truck Check tester list, last checked . Listing on CARB's list is optional for testers, so some credentialed testers are not shown. Services, hours and prices change; please confirm with the tester before you go. Something wrong? Send a correction.