---
title: "Clean Truck Check Testers in the Los Angeles & Orange County (675)"
description: "675 CARB-credentialed Clean Truck Check testers in the Los Angeles & Orange County (Greater Los Angeles, the Ports of Los Angeles and Long Beach): 611 offer…"
url: "https://ctcfinder.com/testers/los-angeles-orange-county/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Clean Truck Check testers in the Los Angeles & Orange County

675 testing businesses in the Los Angeles & Orange County (Greater Los Angeles, the Ports of Los Angeles and Long Beach) are on CARB's public Clean Truck Check tester list (714 credentialed testers). 611 offer mobile testing, 274 do smoke opacity tests, 471 test motorhomes.

> CTC Finder is an independent directory, not affiliated with CARB. Tester data: CARB Clean Truck Check public tester list, last checked November 1, 2026. Confirm services, hours and prices with the tester.

## Counties

- [Los Angeles County](https://ctcfinder.com/testers/los-angeles-county/) — 516 testers
- [Orange County](https://ctcfinder.com/testers/orange-county/) — 159 testers

## City pages

- [Los Angeles](https://ctcfinder.com/testers/los-angeles-county/los-angeles/) (Los Angeles County) — 69 testers
- [Long Beach](https://ctcfinder.com/testers/los-angeles-county/long-beach/) (Los Angeles County) — 26 testers
- [Anaheim](https://ctcfinder.com/testers/orange-county/anaheim/) (Orange County) — 25 testers
- [Lancaster](https://ctcfinder.com/testers/los-angeles-county/lancaster/) (Los Angeles County) — 16 testers
- [Orange](https://ctcfinder.com/testers/orange-county/orange/) (Orange County) — 14 testers
- [Santa Ana](https://ctcfinder.com/testers/orange-county/santa-ana/) (Orange County) — 14 testers
- [South Gate](https://ctcfinder.com/testers/los-angeles-county/south-gate/) (Los Angeles County) — 13 testers
- [Huntington Beach](https://ctcfinder.com/testers/orange-county/huntington-beach/) (Orange County) — 13 testers
- [Palmdale](https://ctcfinder.com/testers/los-angeles-county/palmdale/) (Los Angeles County) — 12 testers
- [Pomona](https://ctcfinder.com/testers/los-angeles-county/pomona/) (Los Angeles County) — 12 testers
- [Wilmington](https://ctcfinder.com/testers/los-angeles-county/wilmington/) (Los Angeles County) — 12 testers
- [Compton](https://ctcfinder.com/testers/los-angeles-county/compton/) (Los Angeles County) — 11 testers
- [El Monte](https://ctcfinder.com/testers/los-angeles-county/el-monte/) (Los Angeles County) — 11 testers
- [Santa Fe Springs](https://ctcfinder.com/testers/los-angeles-county/santa-fe-springs/) (Los Angeles County) — 11 testers
- [Torrance](https://ctcfinder.com/testers/los-angeles-county/torrance/) (Los Angeles County) — 11 testers
- [Van Nuys](https://ctcfinder.com/testers/los-angeles-county/van-nuys/) (Los Angeles County) — 11 testers
- [Huntington Park](https://ctcfinder.com/testers/los-angeles-county/huntington-park/) (Los Angeles County) — 10 testers
- [Sun Valley](https://ctcfinder.com/testers/los-angeles-county/sun-valley/) (Los Angeles County) — 10 testers
- [Whittier](https://ctcfinder.com/testers/los-angeles-county/whittier/) (Los Angeles County) — 10 testers
- [Garden Grove](https://ctcfinder.com/testers/orange-county/garden-grove/) (Orange County) — 10 testers
- [Downey](https://ctcfinder.com/testers/los-angeles-county/downey/) (Los Angeles County) — 9 testers
- [Buena Park](https://ctcfinder.com/testers/orange-county/buena-park/) (Orange County) — 9 testers
- [Bellflower](https://ctcfinder.com/testers/los-angeles-county/bellflower/) (Los Angeles County) — 8 testers
- [Montebello](https://ctcfinder.com/testers/los-angeles-county/montebello/) (Los Angeles County) — 8 testers
- [Fullerton](https://ctcfinder.com/testers/orange-county/fullerton/) (Orange County) — 8 testers
- [Azusa](https://ctcfinder.com/testers/los-angeles-county/azusa/) (Los Angeles County) — 7 testers
- [Commerce](https://ctcfinder.com/testers/los-angeles-county/commerce/) (Los Angeles County) — 7 testers
- [Gardena](https://ctcfinder.com/testers/los-angeles-county/gardena/) (Los Angeles County) — 7 testers
- [Irvine](https://ctcfinder.com/testers/orange-county/irvine/) (Orange County) — 7 testers
- [Westminster](https://ctcfinder.com/testers/orange-county/westminster/) (Orange County) — 7 testers
- [Canyon Country](https://ctcfinder.com/testers/los-angeles-county/canyon-country/) (Los Angeles County) — 6 testers
- [Carson](https://ctcfinder.com/testers/los-angeles-county/carson/) (Los Angeles County) — 6 testers
- [La Puente](https://ctcfinder.com/testers/los-angeles-county/la-puente/) (Los Angeles County) — 6 testers
- [Lynwood](https://ctcfinder.com/testers/los-angeles-county/lynwood/) (Los Angeles County) — 6 testers
- [Pico Rivera](https://ctcfinder.com/testers/los-angeles-county/pico-rivera/) (Los Angeles County) — 6 testers
- [Sylmar](https://ctcfinder.com/testers/los-angeles-county/sylmar/) (Los Angeles County) — 6 testers
- [Costa Mesa](https://ctcfinder.com/testers/orange-county/costa-mesa/) (Orange County) — 6 testers
- [La Habra](https://ctcfinder.com/testers/orange-county/la-habra/) (Orange County) — 6 testers
- [Alhambra](https://ctcfinder.com/testers/los-angeles-county/alhambra/) (Los Angeles County) — 5 testers
- [Bell Gardens](https://ctcfinder.com/testers/los-angeles-county/bell-gardens/) (Los Angeles County) — 5 testers
- [Burbank](https://ctcfinder.com/testers/los-angeles-county/burbank/) (Los Angeles County) — 5 testers
- [Glendale](https://ctcfinder.com/testers/los-angeles-county/glendale/) (Los Angeles County) — 5 testers
- [Glendora](https://ctcfinder.com/testers/los-angeles-county/glendora/) (Los Angeles County) — 5 testers
- [Hawthorne](https://ctcfinder.com/testers/los-angeles-county/hawthorne/) (Los Angeles County) — 5 testers
- [La Mirada](https://ctcfinder.com/testers/los-angeles-county/la-mirada/) (Los Angeles County) — 5 testers
- [North Hollywood](https://ctcfinder.com/testers/los-angeles-county/north-hollywood/) (Los Angeles County) — 5 testers
- [Norwalk](https://ctcfinder.com/testers/los-angeles-county/norwalk/) (Los Angeles County) — 5 testers
- [Reseda](https://ctcfinder.com/testers/los-angeles-county/reseda/) (Los Angeles County) — 5 testers
- [Santa Clarita](https://ctcfinder.com/testers/los-angeles-county/santa-clarita/) (Los Angeles County) — 5 testers
- [Valencia](https://ctcfinder.com/testers/los-angeles-county/valencia/) (Los Angeles County) — 5 testers
- [West Covina](https://ctcfinder.com/testers/los-angeles-county/west-covina/) (Los Angeles County) — 5 testers
- [Baldwin Park](https://ctcfinder.com/testers/los-angeles-county/baldwin-park/) (Los Angeles County) — 4 testers
- [Chatsworth](https://ctcfinder.com/testers/los-angeles-county/chatsworth/) (Los Angeles County) — 4 testers
- [Claremont](https://ctcfinder.com/testers/los-angeles-county/claremont/) (Los Angeles County) — 4 testers
- [Hacienda Heights](https://ctcfinder.com/testers/los-angeles-county/hacienda-heights/) (Los Angeles County) — 4 testers
- [Inglewood](https://ctcfinder.com/testers/los-angeles-county/inglewood/) (Los Angeles County) — 4 testers
- [Lakewood](https://ctcfinder.com/testers/los-angeles-county/lakewood/) (Los Angeles County) — 4 testers
- [Lawndale](https://ctcfinder.com/testers/los-angeles-county/lawndale/) (Los Angeles County) — 4 testers
- [Pacoima](https://ctcfinder.com/testers/los-angeles-county/pacoima/) (Los Angeles County) — 4 testers
- [Rowland Heights](https://ctcfinder.com/testers/los-angeles-county/rowland-heights/) (Los Angeles County) — 4 testers
- [San Dimas](https://ctcfinder.com/testers/los-angeles-county/san-dimas/) (Los Angeles County) — 4 testers
- [Fountain Valley](https://ctcfinder.com/testers/orange-county/fountain-valley/) (Orange County) — 4 testers
- [Placentia](https://ctcfinder.com/testers/orange-county/placentia/) (Orange County) — 4 testers
- [Yorba Linda](https://ctcfinder.com/testers/orange-county/yorba-linda/) (Orange County) — 4 testers
- [Acton](https://ctcfinder.com/testers/los-angeles-county/acton/) (Los Angeles County) — 3 testers
- [La Verne](https://ctcfinder.com/testers/los-angeles-county/la-verne/) (Los Angeles County) — 3 testers
- [Monterey Park](https://ctcfinder.com/testers/los-angeles-county/monterey-park/) (Los Angeles County) — 3 testers
- [Northridge](https://ctcfinder.com/testers/los-angeles-county/northridge/) (Los Angeles County) — 3 testers
- [Paramount](https://ctcfinder.com/testers/los-angeles-county/paramount/) (Los Angeles County) — 3 testers
- [San Fernando](https://ctcfinder.com/testers/los-angeles-county/san-fernando/) (Los Angeles County) — 3 testers
- [Sherman Oaks](https://ctcfinder.com/testers/los-angeles-county/sherman-oaks/) (Los Angeles County) — 3 testers
- [Signal Hill](https://ctcfinder.com/testers/los-angeles-county/signal-hill/) (Los Angeles County) — 3 testers
- [South El Monte](https://ctcfinder.com/testers/los-angeles-county/south-el-monte/) (Los Angeles County) — 3 testers
- [Walnut](https://ctcfinder.com/testers/los-angeles-county/walnut/) (Los Angeles County) — 3 testers
- [Lake Forest](https://ctcfinder.com/testers/orange-county/lake-forest/) (Orange County) — 3 testers
- [Mission Viejo](https://ctcfinder.com/testers/orange-county/mission-viejo/) (Orange County) — 3 testers
- [Rancho Santa Margarita](https://ctcfinder.com/testers/orange-county/rancho-santa-margarita/) (Orange County) — 3 testers
- [Tustin](https://ctcfinder.com/testers/orange-county/tustin/) (Orange County) — 3 testers

## Testing businesses with several credentialed testers

- **[AIRPASS Automated Testing Device by AIRLIMITS](https://ctcfinder.com/tester/airpass-automated-testing-device-by-airlimits-long-beach/)** — 65 Pine Avenue, Long Beach, CA 90802 — (800) 788-5241. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Clean Truck Check Authority](https://ctcfinder.com/tester/clean-truck-check-authority-huntington-beach/)** — 16861 Beach Blvd, Huntington Beach, CA 92647 — (714) 603-3839. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Clean Diesel Specialist Anaheim](https://ctcfinder.com/tester/clean-diesel-specialist-anaheim-anaheim/)** — 220 W Santa Ana St, Anaheim, CA 92805 — (562) 857-4241. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[ED'S VEHICLE SAFETY Bernardo H Soria](https://ctcfinder.com/tester/eds-vehicle-safety-bernardo-h-soria-compton/)** — 15514 South Atlantic Avenue, Compton, CA 90221 — (310) 537-9786. Services: OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[OC Clean Truck LLC](https://ctcfinder.com/tester/oc-clean-truck-llc-orange/)** — Orange, CA 92867 — (714) 306-9803. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Revix LLC](https://ctcfinder.com/tester/revix-llc-whittier/)** — 14614 Broadway, Whittier, CA 90604 — (562) 753-4564. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[A&G Safety Alliance](https://ctcfinder.com/tester/a-and-g-safety-alliance-los-angeles/)** — 951 South Ford Boulevard, Los Angeles, CA 90022 — (562) 572-6969. Services: mobile testing, OBD testing, motorhome testing.
- **[Arcadia Smog Test Only Center](https://ctcfinder.com/tester/arcadia-smog-test-only-center-arcadia/)** — 401 N 1st Ave, Arcadia, CA 91006 — (626) 447-1101. Services: mobile testing, OBD testing, motorhome testing.
- **[CARB Emission Services INC](https://ctcfinder.com/tester/carb-emission-services-inc-carson/)** — 20850 Leapwood Ave, Carson, CA 90746 — (562) 625-0225. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Darling Smog](https://ctcfinder.com/tester/darling-smog-glendora/)** — 743 W Route 66 #4, Glendora, CA 91740 — (626) 495-8835. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Diesel Exhaust & Emissions](https://ctcfinder.com/tester/diesel-exhaust-and-emissions-santa-fe-springs/)** — 11039 Shoemaker Ave, Santa Fe Springs, CA 90670 — (562) 734-6302. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Diesel Exhaust & Emissions LLC](https://ctcfinder.com/tester/diesel-exhaust-and-emissions-llc-santa-fe-springs/)** — 11043 Shoemaker Ave, Santa Fe Springs, CA 90670 — (562) 682-5232. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.

## Trucking in the Los Angeles & Orange County

Truck traffic to the Ports of Los Angeles and Long Beach (the San Pedro Bay port complex) is heavy, and seaport and intermodal railyard facilities must verify Clean Truck Check compliance at entry or log non-compliant trucks (CARB). Testers here serve port drayage near Wilmington, San Pedro and Carson, the industrial districts of South LA, the San Fernando Valley and north Orange County along the 91, the 57 and I-5.

## Cost

Typical published prices in California: OBD test $50–$135 per vehicle; smoke opacity test $190–$200; CARB annual fee $32.13 (2026), $33.12 (2027).

## Frequently asked questions

### How many Clean Truck Check testers are in the Los Angeles & Orange County?

CTC Finder lists 675 testing businesses in the Los Angeles & Orange County from CARB's public tester list (714 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 the Los Angeles & Orange County?

Yes. 611 listed businesses in the Los Angeles & Orange County offer mobile testing, which means the tester comes to your yard. Each city page has a Mobile filter; see also [mobile testers](https://ctcfinder.com/mobile-testers/).

### How much does a Clean Truck Check test cost in the Los Angeles & Orange 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](https://ctcfinder.com/guide/cost/).

### Which Los Angeles & Orange County cities have the most Clean Truck Check testers?

Los Angeles (69), Long Beach (26), Anaheim (25). Every city with 3 or more listings has its own page with phone numbers and a Mobile filter.