Clean Truck Check testers in Los Angeles County
516 testing businesses in Los Angeles County are on CARB's public tester list, in 98 cities. 465 (90%) offer mobile testing, 190 do smoke opacity tests and 355 test motorhomes.
Cities in Los Angeles
- Los Angeles 69
- Long Beach 26
- Lancaster 16
- South Gate 13
- Palmdale 12
- Pomona 12
- Wilmington 12
- Compton 11
- El Monte 11
- Santa Fe Springs 11
- Torrance 11
- Van Nuys 11
- Huntington Park 10
- Sun Valley 10
- Whittier 10
- Downey 9
- Bellflower 8
- Montebello 8
- Azusa 7
- Commerce 7
- Gardena 7
- Canyon Country 6
- Carson 6
- La Puente 6
- Lynwood 6
- Pico Rivera 6
- Sylmar 6
- Alhambra 5
- Bell Gardens 5
- Burbank 5
- Glendale 5
- Glendora 5
- Hawthorne 5
- La Mirada 5
- North Hollywood 5
- Norwalk 5
- Reseda 5
- Santa Clarita 5
- Valencia 5
- West Covina 5
- Baldwin Park 4
- Chatsworth 4
- Claremont 4
- Hacienda Heights 4
- Inglewood 4
- Lakewood 4
- Lawndale 4
- Pacoima 4
- Rowland Heights 4
- San Dimas 4
- Acton 3
- La Verne 3
- Monterey Park 3
- Northridge 3
- Paramount 3
- San Fernando 3
- Sherman Oaks 3
- Signal Hill 3
- South El Monte 3
- Walnut 3
Other cities
Agoura Hills
Altadena
-
Nava's Transport Solutions
- Mobile testing
- OBD test
- Motorhomes
-
Robko Trucking
- Mobile testing
- OBD test
- Smoke opacity
- Motorhomes
Arcadia
-
Arcadia Smog Test Only Center
- Mobile testing
- OBD test
- Motorhomes
-
Holloway Robert
- Mobile testing
- OBD test
- Smoke opacity
- Motorhomes
Artesia
-
Socal Diesel Repair LLC
-
Sunny.Mobile.CTC
- Mobile testing
- OBD test
- Motorhomes
Bell
-
Cox Automotive Dickinson Fleet
- Mobile testing
- OBD test
- Motorhomes
Canoga Park
-
Cal State CTC Services
- Mobile testing
- OBD test
- Smoke opacity
- Motorhomes
-
Deyoung Automotive INC
- OBD test
- Smoke opacity
- Motorhomes
Castaic
-
GM Mobile consulting Inc
- Mobile testing
- OBD test
- Smoke opacity
Cerritos
-
Ricky Royse
- Mobile testing
- OBD test
- Motorhomes
City of Industry
-
CE Logistics
- Mobile testing
- OBD test
Covina
-
Landis Farr
- Mobile testing
-
Rene Quinones
- Mobile testing
- OBD test
- Smoke opacity
- Motorhomes
Culver City
-
All City Tow
- Mobile testing
- OBD test
- Motorhomes
-
Mike Gralapp
- Mobile testing
- OBD test
- Motorhomes
Diamond Bar
-
Fridda Vanegas Cabrera
- Mobile testing
- OBD test
Duarte
-
Clear View Opacity testing
- Mobile testing
- OBD test
- Smoke opacity
- Motorhomes
-
Rayo’s Heavy Duty Testing
- Mobile testing
- OBD test
- Motorhomes
El Segundo
-
Golden Mile Registration Services LLC
- Mobile testing
- OBD test
Encino
-
RP Enterprises
- Mobile testing
- OBD test
Harbor City
-
C1 Testing
- Mobile testing
- OBD test
La Crescenta
-
Modern Diesel Tech
- Mobile testing
- OBD test
- Motorhomes
Littlerock
-
M&K Equipment Inspection Services LLC.
- Mobile testing
- OBD test
- Smoke opacity
- Motorhomes
Lomita
-
A & A Smog Away
- Mobile testing
- OBD test
- Motorhomes
-
Dion Ramos
- Mobile testing
- OBD test
- Motorhomes
Malibu
-
Tony Haynes
- Mobile testing
- OBD test
- Motorhomes
Maywood
-
Tonys Clean Truck Test
- Mobile testing
- OBD test
- Motorhomes
Mission Hills
-
Gerardo Palomino
- Smoke opacity
-
Sujey Juarez
- Mobile testing
- OBD test
- Smoke opacity
- Motorhomes
Monrovia
-
Foothill Automotive Services
- Mobile testing
- OBD test
- Motorhomes
-
Jarhead Fleet
- Mobile testing
- OBD test
- Smoke opacity
- Motorhomes
North Hills
-
Quality Smog Test & Clean Truck Check
- Mobile testing
- OBD test
- Motorhomes
Pasadena
-
Hill Smog
- Mobile testing
- OBD test
- Smoke opacity
- Motorhomes
-
Rolis Mobile Service
- Mobile testing
- OBD test
- Smoke opacity
- Motorhomes
Pearblossom
-
Alan Sifuentes
- Mobile testing
- OBD test
- Smoke opacity
- Motorhomes
Porter Ranch
-
Two Kings Compliance
- Mobile testing
- OBD test
- Smoke opacity
- Motorhomes
Redondo Beach
-
Carlos Martinez
- Mobile testing
- OBD test
- Motorhomes
-
Los Angeles Clean Truck Check
- Mobile testing
- OBD test
- Motorhomes
Rosemead
-
Ivan LU
- Mobile testing
- OBD test
- Motorhomes
San Gabriel
-
Paul brow
- Mobile testing
- OBD test
- Motorhomes
-
Ryan Fleet Service INC
- Mobile testing
- OBD test
Santa Monica
-
Bully's Smog
- Mobile testing
- OBD test
- Motorhomes
Studio City
-
M&M Anderson Transport
- Mobile testing
- OBD test
Sunland
-
Michael Saint
- Mobile testing
- OBD test
- Motorhomes
-
Victor Bedrosian
- Mobile testing
- OBD test
- Motorhomes
Tujunga
-
FleetFox
- Mobile testing
- OBD test
- Smoke opacity
- Motorhomes
Valley Village
-
Clean Truck Check Pro
- Mobile testing
- OBD test
- Motorhomes
Vernon
-
Eman Computers
- Mobile testing
- OBD test
-
Matthew Caudillo
- Mobile testing
- OBD test
- Smoke opacity
- Motorhomes
West Hills
-
Bulstar Trucking Inc
- Mobile testing
- OBD test
- Motorhomes
Woodland Hills
-
Acosta CTC Check
- Mobile testing
- OBD test
Trucking in Los Angeles
Los Angeles County has more listed testers than any other county. Seaports and intermodal railyards, including the Ports of Los Angeles and Long Beach, must verify Clean Truck Check compliance at entry or log non-compliant trucks (CARB).
Frequently asked questions
How many Clean Truck Check testers are in Los Angeles County?
CTC Finder lists 516 testing businesses in Los Angeles County from CARB's public tester list (541 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 Los Angeles County?
Yes. 465 listed businesses in Los Angeles 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 Los Angeles 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.