Clean Truck Check testers in California
CTC Finder lists 2,867 testing businesses (3,018 credentialed testers) from CARB's public tester list, in all 55 California counties. 2,543 offer mobile testing. Choose a county or one of the 279 city pages below, or search by ZIP code.
Regions
- Inland Empire 528
- Los Angeles & Orange County 675
- San Francisco Bay Area 344
- San Joaquin Valley 544
- Sacramento Region 248
- San Diego & Imperial 193
- Central Coast 186
Largest cities
- Bakersfield 78
- Fresno 74
- Los Angeles 69
- Sacramento 68
- Stockton 50
- Fontana 49
- Riverside 48
- San Diego 42
- San Jose 41
- Ontario 31
- San Bernardino 29
- Long Beach 26
- Anaheim 25
- El Cajon 24
- Modesto 23
- Oxnard 22
- Salinas 21
- Santa Maria 21
- Tracy 21
- West Sacramento 21
- Hesperia 20
- Manteca 19
- Visalia 19
- Corona 18
- Hayward 18
- Jurupa Valley 18
- Perris 18
- Rancho Cucamonga 18
- Rialto 18
- Temecula 18
All counties
- Alameda County 85
- Amador County 7
- Butte County 24
- Calaveras County 8
- Colusa County 6
- Contra Costa County 61
- Del Norte County 3
- El Dorado County 16
- Fresno County 123
- Glenn County 6
- Humboldt County 20
- Imperial County 15
- Inyo County 1
- Kern County 107
- Kings County 13
- Lake County 3
- Lassen County 5
- Los Angeles County 516
- Madera County 22
- Marin County 4
- Mariposa County 1
- Mendocino County 8
- Merced County 40
- Modoc County 2
- Mono County 2
- Monterey County 37
- Napa County 11
- Nevada County 8
- Orange County 159
- Placer County 39
- Plumas County 4
- Riverside County 251
- Sacramento County 131
- San Benito County 7
- San Bernardino County 277
- San Diego County 178
- San Francisco County 7
- San Joaquin County 124
- San Luis Obispo County 25
- San Mateo County 31
- Santa Barbara County 31
- Santa Clara County 79
- Santa Cruz County 18
- Shasta County 18
- Siskiyou County 7
- Solano County 38
- Sonoma County 28
- Stanislaus County 53
- Sutter County 12
- Tehama County 11
- Tulare County 62
- Tuolumne County 5
- Ventura County 68
- Yolo County 42
- Yuba County 8
Testing outside California?
506 businesses outside California are also credentialed by CARB. See testers outside California.
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.