Recommended · Featured Partner
5— on Google ReviewsSmart CTC
Test your truck ANYWHERE in the USA, Canada or Mexico without scheduling shop visits or mobile testers.
RemoteOBDMotor Home
Clean Truck Check in San Dimas, CA
6 credentialed testers in San Dimas.
Testers in San Dimas
Recommended · Featured Partner
5— on Google ReviewsClean Truck Check Pro
Mobile CARB-credentialed Clean Truck Check testing serving Southern California.
MobileOBDMotor Home
DieselWorx
CRAIG Smith
MobileOBDOVIOVI tests are required for 2012 and older enginesMotor Home
JR Durazo
MobileOBDMotor Home
PACIFIC WEST COMMUNICATIONS (PWC)
Rob Patton
MobileOBDMotor Home
Caloha Air Compliance
Taylor Duran
MobileOBD
Trucking activity in Los Angeles County
Clean Truck Check applies to heavy-duty vehicles that operate in California — including out-of-state trucks based here that run loads west.
Trucking establishments
5,780
Trucking employees
39,203
Source: FMCSA MCMIS carrier census, US Census County Business Patterns 2021.