---
title: "Clean Truck Check Testers in Los Angeles County, CA (516)"
description: "516 CARB-credentialed Clean Truck Check testers in Los Angeles County, California, across 98 cities. 465 offer mobile testing. Search by city, see phone…"
url: "https://ctcfinder.com/testers/los-angeles-county/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Clean Truck Check testers in Los Angeles County, California

516 testing businesses in 98 cities; 465 offer mobile testing, 190 do smoke opacity tests, 355 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.

## City pages

- [Los Angeles](https://ctcfinder.com/testers/los-angeles-county/los-angeles/) — 69 listings
- [Long Beach](https://ctcfinder.com/testers/los-angeles-county/long-beach/) — 26 listings
- [Lancaster](https://ctcfinder.com/testers/los-angeles-county/lancaster/) — 16 listings
- [South Gate](https://ctcfinder.com/testers/los-angeles-county/south-gate/) — 13 listings
- [Palmdale](https://ctcfinder.com/testers/los-angeles-county/palmdale/) — 12 listings
- [Pomona](https://ctcfinder.com/testers/los-angeles-county/pomona/) — 12 listings
- [Wilmington](https://ctcfinder.com/testers/los-angeles-county/wilmington/) — 12 listings
- [Compton](https://ctcfinder.com/testers/los-angeles-county/compton/) — 11 listings
- [El Monte](https://ctcfinder.com/testers/los-angeles-county/el-monte/) — 11 listings
- [Santa Fe Springs](https://ctcfinder.com/testers/los-angeles-county/santa-fe-springs/) — 11 listings
- [Torrance](https://ctcfinder.com/testers/los-angeles-county/torrance/) — 11 listings
- [Van Nuys](https://ctcfinder.com/testers/los-angeles-county/van-nuys/) — 11 listings
- [Huntington Park](https://ctcfinder.com/testers/los-angeles-county/huntington-park/) — 10 listings
- [Sun Valley](https://ctcfinder.com/testers/los-angeles-county/sun-valley/) — 10 listings
- [Whittier](https://ctcfinder.com/testers/los-angeles-county/whittier/) — 10 listings
- [Downey](https://ctcfinder.com/testers/los-angeles-county/downey/) — 9 listings
- [Bellflower](https://ctcfinder.com/testers/los-angeles-county/bellflower/) — 8 listings
- [Montebello](https://ctcfinder.com/testers/los-angeles-county/montebello/) — 8 listings
- [Azusa](https://ctcfinder.com/testers/los-angeles-county/azusa/) — 7 listings
- [Commerce](https://ctcfinder.com/testers/los-angeles-county/commerce/) — 7 listings
- [Gardena](https://ctcfinder.com/testers/los-angeles-county/gardena/) — 7 listings
- [Canyon Country](https://ctcfinder.com/testers/los-angeles-county/canyon-country/) — 6 listings
- [Carson](https://ctcfinder.com/testers/los-angeles-county/carson/) — 6 listings
- [La Puente](https://ctcfinder.com/testers/los-angeles-county/la-puente/) — 6 listings
- [Lynwood](https://ctcfinder.com/testers/los-angeles-county/lynwood/) — 6 listings
- [Pico Rivera](https://ctcfinder.com/testers/los-angeles-county/pico-rivera/) — 6 listings
- [Sylmar](https://ctcfinder.com/testers/los-angeles-county/sylmar/) — 6 listings
- [Alhambra](https://ctcfinder.com/testers/los-angeles-county/alhambra/) — 5 listings
- [Bell Gardens](https://ctcfinder.com/testers/los-angeles-county/bell-gardens/) — 5 listings
- [Burbank](https://ctcfinder.com/testers/los-angeles-county/burbank/) — 5 listings
- [Glendale](https://ctcfinder.com/testers/los-angeles-county/glendale/) — 5 listings
- [Glendora](https://ctcfinder.com/testers/los-angeles-county/glendora/) — 5 listings
- [Hawthorne](https://ctcfinder.com/testers/los-angeles-county/hawthorne/) — 5 listings
- [La Mirada](https://ctcfinder.com/testers/los-angeles-county/la-mirada/) — 5 listings
- [North Hollywood](https://ctcfinder.com/testers/los-angeles-county/north-hollywood/) — 5 listings
- [Norwalk](https://ctcfinder.com/testers/los-angeles-county/norwalk/) — 5 listings
- [Reseda](https://ctcfinder.com/testers/los-angeles-county/reseda/) — 5 listings
- [Santa Clarita](https://ctcfinder.com/testers/los-angeles-county/santa-clarita/) — 5 listings
- [Valencia](https://ctcfinder.com/testers/los-angeles-county/valencia/) — 5 listings
- [West Covina](https://ctcfinder.com/testers/los-angeles-county/west-covina/) — 5 listings
- [Baldwin Park](https://ctcfinder.com/testers/los-angeles-county/baldwin-park/) — 4 listings
- [Chatsworth](https://ctcfinder.com/testers/los-angeles-county/chatsworth/) — 4 listings
- [Claremont](https://ctcfinder.com/testers/los-angeles-county/claremont/) — 4 listings
- [Hacienda Heights](https://ctcfinder.com/testers/los-angeles-county/hacienda-heights/) — 4 listings
- [Inglewood](https://ctcfinder.com/testers/los-angeles-county/inglewood/) — 4 listings
- [Lakewood](https://ctcfinder.com/testers/los-angeles-county/lakewood/) — 4 listings
- [Lawndale](https://ctcfinder.com/testers/los-angeles-county/lawndale/) — 4 listings
- [Pacoima](https://ctcfinder.com/testers/los-angeles-county/pacoima/) — 4 listings
- [Rowland Heights](https://ctcfinder.com/testers/los-angeles-county/rowland-heights/) — 4 listings
- [San Dimas](https://ctcfinder.com/testers/los-angeles-county/san-dimas/) — 4 listings
- [Acton](https://ctcfinder.com/testers/los-angeles-county/acton/) — 3 listings
- [La Verne](https://ctcfinder.com/testers/los-angeles-county/la-verne/) — 3 listings
- [Monterey Park](https://ctcfinder.com/testers/los-angeles-county/monterey-park/) — 3 listings
- [Northridge](https://ctcfinder.com/testers/los-angeles-county/northridge/) — 3 listings
- [Paramount](https://ctcfinder.com/testers/los-angeles-county/paramount/) — 3 listings
- [San Fernando](https://ctcfinder.com/testers/los-angeles-county/san-fernando/) — 3 listings
- [Sherman Oaks](https://ctcfinder.com/testers/los-angeles-county/sherman-oaks/) — 3 listings
- [Signal Hill](https://ctcfinder.com/testers/los-angeles-county/signal-hill/) — 3 listings
- [South El Monte](https://ctcfinder.com/testers/los-angeles-county/south-el-monte/) — 3 listings
- [Walnut](https://ctcfinder.com/testers/los-angeles-county/walnut/) — 3 listings

## Agoura Hills

- **[Pj’s CTC](https://ctcfinder.com/tester/pjs-ctc-agoura-hills/)** — 6022 Chesebro Rd, Agoura Hills, CA 91301 — (805) 391-8049. Services: mobile testing, OBD testing.
- **[SoCal CTC](https://ctcfinder.com/tester/socal-ctc-agoura-hills/)** — 28728 Eagleton Street, Agoura Hills, CA 91301 — (818) 217-0312. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.

## Altadena

- **[Nava's Transport Solutions](https://ctcfinder.com/tester/navas-transport-solutions-altadena/)** — 665 West Altadena Drive #25, Altadena, CA 91001 — (626) 268-1490. Services: mobile testing, OBD testing, motorhome testing.
- **[Robko Trucking](https://ctcfinder.com/tester/robko-trucking-altadena/)** — 3050 Marengo Ave, Altadena, CA 91001 — (818) 581-5500. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.

## Arcadia

- **[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.
- **[Holloway Robert](https://ctcfinder.com/tester/holloway-robert-arcadia/)** — Arcadia, CA 91006 — (818) 805-7072. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.

## Artesia

- **[Socal Diesel Repair LLC](https://ctcfinder.com/tester/socal-diesel-repair-llc-artesia/)** — 17224 Alburtis Ave, Artesia, CA 90701 — (562) 304-3194. Services: not listed.
- **[Sunny.Mobile.CTC](https://ctcfinder.com/tester/sunny-mobile-ctc-artesia/)** — Artesia, CA 90701 — (949) 942-1282. Services: mobile testing, OBD testing, motorhome testing.

## Bell

- **[Cox Automotive Dickinson Fleet](https://ctcfinder.com/tester/cox-automotive-dickinson-fleet-bell/)** — Bell, CA 90201 — (463) 231-7162. Services: mobile testing, OBD testing, motorhome testing.

## Canoga Park

- **[Cal State CTC Services](https://ctcfinder.com/tester/cal-state-ctc-services-canoga-park/)** — 21024 Sherman Way, Canoga Park, CA 91303 — (818) 807-4999. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Deyoung Automotive INC](https://ctcfinder.com/tester/deyoung-automotive-inc-canoga-park/)** — 21925 Sherman Way, Canoga Park, CA 91303 — (818) 340-6166. Services: OBD testing, smoke opacity (non-OBD) testing, motorhome testing.

## Castaic

- **[GM Mobile consulting Inc](https://ctcfinder.com/tester/gm-mobile-consulting-inc-castaic/)** — 28829 Carnation Ct, Castaic, CA 91384 — (805) 727-6738. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing.

## Cerritos

- **[Ricky Royse](https://ctcfinder.com/tester/ricky-royse-cerritos/)** — Cerritos, CA 90703 — (562) 972-5508. Services: mobile testing, OBD testing, motorhome testing.

## City of Industry

- **[CE Logistics](https://ctcfinder.com/tester/ce-logistics-city-of-industry/)** — 915 S Azusa Ave, City of Industry, CA 91748 — (626) 222-6682. Services: mobile testing, OBD testing.

## Covina

- **[Landis Farr](https://ctcfinder.com/tester/landis-farr-covina/)** — Covina, CA 91722 — (213) 706-8641. Services: mobile testing.
- **[Rene Quinones](https://ctcfinder.com/tester/rene-quinones-covina/)** — Covina, CA 91724 — (909) 542-5155. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.

## Culver City

- **[All City Tow](https://ctcfinder.com/tester/all-city-tow-culver-city/)** — 5832 Adams Boulevard, Culver City, CA 90232 — (310) 349-7772. Services: mobile testing, OBD testing, motorhome testing.
- **[Mike Gralapp](https://ctcfinder.com/tester/mike-gralapp-culver-city/)** — Culver City, CA 90232 — (310) 292-2176. Services: mobile testing, OBD testing, motorhome testing.

## Diamond Bar

- **[Fridda Vanegas Cabrera](https://ctcfinder.com/tester/fridda-vanegas-cabrera-diamond-bar/)** — Diamond Bar, CA 91765 — (626) 588-7416. Services: mobile testing, OBD testing.

## Duarte

- **[Clear View Opacity testing](https://ctcfinder.com/tester/clear-view-opacity-testing-duarte/)** — 2620 Broderick Ave, Duarte, CA 91010 — (909) 906-8241. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Rayo’s Heavy Duty Testing](https://ctcfinder.com/tester/rayos-heavy-duty-testing-duarte/)** — 2191 Flagstone Ave, Duarte, CA 91010 — (626) 341-4482. Services: mobile testing, OBD testing, motorhome testing.

## El Segundo

- **[Golden Mile Registration Services LLC](https://ctcfinder.com/tester/golden-mile-registration-services-llc-el-segundo/)** — 400 Continental Blvd, El Segundo, CA 90245 — (213) 543-9090. Services: mobile testing, OBD testing.

## Encino

- **[RP Enterprises](https://ctcfinder.com/tester/rp-enterprises-encino/)** — Encino, CA 91316 — (818) 213-1332. Services: mobile testing, OBD testing.

## Harbor City

- **[C1 Testing](https://ctcfinder.com/tester/c1-testing-harbor-city/)** — 1404 257th St, Harbor City, CA 90710 — (424) 404-3703. Services: mobile testing, OBD testing.

## La Crescenta

- **[Modern Diesel Tech](https://ctcfinder.com/tester/modern-diesel-tech-la-crescenta/)** — 3746 Foothill Blvd #531, La Crescenta, CA 91214 — (818) 813-4338. Services: mobile testing, OBD testing, motorhome testing.

## Littlerock

- **[M&K Equipment Inspection Services LLC.](https://ctcfinder.com/tester/m-and-k-equipment-inspection-services-llc-littlerock/)** — 11340 East Avenue R, Littlerock, CA 93543 — (310) 987-8409. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.

## Lomita

- **[A & A Smog Away](https://ctcfinder.com/tester/a-and-a-smog-away-lomita/)** — 1913 Pacific Coast Highway, Lomita, CA 90717 — (714) 396-7181. Services: mobile testing, OBD testing, motorhome testing.
- **[Dion Ramos](https://ctcfinder.com/tester/dion-ramos-lomita/)** — Lomita, CA 90717 — (818) 770-8884. Services: mobile testing, OBD testing, motorhome testing.

## Malibu

- **[Tony Haynes](https://ctcfinder.com/tester/tony-haynes-malibu/)** — Malibu, CA 90265 — (310) 924-0967. Services: mobile testing, OBD testing, motorhome testing.

## Maywood

- **[Tonys Clean Truck Test](https://ctcfinder.com/tester/tonys-clean-truck-test-maywood/)** — 6118 Woodlawn Ave, Maywood, CA 90270 — (323) 501-3778. Services: mobile testing, OBD testing, motorhome testing.

## Mission Hills

- **[Gerardo Palomino](https://ctcfinder.com/tester/gerardo-palomino-mission-hills/)** — Mission Hills, CA 91345 — (818) 644-7035. Services: smoke opacity (non-OBD) testing.
- **[Sujey Juarez](https://ctcfinder.com/tester/sujey-juarez-mission-hills/)** — Mission Hills, CA 91345 — (818) 805-7157. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.

## Monrovia

- **[Foothill Automotive Services](https://ctcfinder.com/tester/foothill-automotive-services-monrovia/)** — 150 East Pomona Avenue, Monrovia, CA 91016 — (626) 357-5015. Services: mobile testing, OBD testing, motorhome testing.
- **[Jarhead Fleet](https://ctcfinder.com/tester/jarhead-fleet-monrovia/)** — 252 North Canyon Boulevard, Monrovia, CA 91016 — (626) 944-0618. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.

## North Hills

- **[Quality Smog Test & Clean Truck Check](https://ctcfinder.com/tester/quality-smog-test-and-clean-truck-check-north-hills/)** — 9005 Sepulveda Blvd Suite 9, North Hills, CA 91343 — (818) 383-7994. Services: mobile testing, OBD testing, motorhome testing.

## Pasadena

- **[Hill Smog](https://ctcfinder.com/tester/hill-smog-pasadena/)** — 248 N Hill Ave, Pasadena, CA 91106 — (626) 796-7609. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Rolis Mobile Service](https://ctcfinder.com/tester/rolis-mobile-service-pasadena/)** — 2220 E Foothill Blvd, Pasadena, CA 91107 — (310) 757-2361. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.

## Pearblossom

- **[Alan Sifuentes](https://ctcfinder.com/tester/alan-sifuentes-pearblossom/)** — Pearblossom, CA 93553 — (818) 205-3090. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.

## Porter Ranch

- **[Two Kings Compliance](https://ctcfinder.com/tester/two-kings-compliance-porter-ranch/)** — 19360 Rinaldi St Ste 769, Porter Ranch, CA 91326 — (310) 261-2141. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.

## Redondo Beach

- **[Carlos Martinez](https://ctcfinder.com/tester/carlos-martinez-redondo-beach/)** — Redondo Beach, CA 90278 — (310) 906-0988. Services: mobile testing, OBD testing, motorhome testing.
- **[Los Angeles Clean Truck Check](https://ctcfinder.com/tester/los-angeles-clean-truck-check-redondo-beach/)** — 2618 184th St, Redondo Beach, CA 90278 — (310) 989-1140. Services: mobile testing, OBD testing, motorhome testing.

## Rosemead

- **[Ivan LU](https://ctcfinder.com/tester/ivan-lu-rosemead/)** — Rosemead, CA 91770 — (626) 476-1199. Services: mobile testing, OBD testing, motorhome testing.

## San Gabriel

- **[Paul brow](https://ctcfinder.com/tester/paul-brow-san-gabriel/)** — San Gabriel, CA 91776 — (626) 840-7678. Services: mobile testing, OBD testing, motorhome testing.
- **[Ryan Fleet Service INC](https://ctcfinder.com/tester/ryan-fleet-service-inc-san-gabriel/)** — 8839 Arcadia Avenue, San Gabriel, CA 91775 — (626) 349-5623. Services: mobile testing, OBD testing.

## Santa Monica

- **[Bully's Smog](https://ctcfinder.com/tester/bullys-smog-santa-monica/)** — 2700 Lincoln Blvd Suite 7, Santa Monica, CA 90405 — (323) 984-2138. Services: mobile testing, OBD testing, motorhome testing.

## Studio City

- **[M&M Anderson Transport](https://ctcfinder.com/tester/m-and-m-anderson-transport-studio-city/)** — 12400 Ventura Blvd 1298, Studio City, CA 91604 — (909) 547-5833. Services: mobile testing, OBD testing.

## Sunland

- **[Michael Saint](https://ctcfinder.com/tester/michael-saint-sunland/)** — Sunland, CA 91040 — (818) 524-8713. Services: mobile testing, OBD testing, motorhome testing.
- **[Victor Bedrosian](https://ctcfinder.com/tester/victor-bedrosian-sunland/)** — Sunland, CA 91040 — (818) 284-1785. Services: mobile testing, OBD testing, motorhome testing.

## Tujunga

- **[FleetFox](https://ctcfinder.com/tester/fleetfox-tujunga/)** — 10714 Tinker Ave, Tujunga, CA 91042 — (818) 804-8153. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.

## Valley Village

- **[Clean Truck Check Pro](https://ctcfinder.com/tester/clean-truck-check-pro-valley-village/)** — 12436 Magnolia Blvd, Valley Village, CA 91607 — (323) 929-7580. Services: mobile testing, OBD testing, motorhome testing.

## Vernon

- **[Eman Computers](https://ctcfinder.com/tester/eman-computers-vernon/)** — Vernon, CA 90058 — (323) 556-4524. Services: mobile testing, OBD testing.
- **[Matthew Caudillo](https://ctcfinder.com/tester/matthew-caudillo-vernon/)** — Vernon, CA 90058 — (562) 965-5838. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.

## West Hills

- **[Bulstar Trucking Inc](https://ctcfinder.com/tester/bulstar-trucking-inc-west-hills/)** — 7545 Royer Ave, West Hills, CA 91307 — (310) 994-8332. Services: mobile testing, OBD testing, motorhome testing.

## Woodland Hills

- **[Acosta CTC Check](https://ctcfinder.com/tester/acosta-ctc-check-woodland-hills/)** — 23341 Ostronic Dr, Woodland Hills, CA 91367 — (785) 375-8535. Services: mobile testing, OBD testing.

## 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](https://ctcfinder.com/guide/cost/).