--- title: "Clean Truck Check Testers in the San Diego & Imperial (193)" description: "193 CARB-credentialed Clean Truck Check testers in the San Diego & Imperial (the California–Mexico border region (Otay Mesa and Calexico)): 171 offer mobile…" url: "https://ctcfinder.com/testers/san-diego-imperial/" updated: "2026-11-01" publisher: "CTC Finder (independent directory, not affiliated with CARB)" --- # Clean Truck Check testers in the San Diego & Imperial 193 testing businesses in the San Diego & Imperial (the California–Mexico border region (Otay Mesa and Calexico)) are on CARB's public Clean Truck Check tester list (209 credentialed testers). 171 offer mobile testing, 98 do smoke opacity tests, 147 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 - [San Diego County](https://ctcfinder.com/testers/san-diego-county/) — 178 testers - [Imperial County](https://ctcfinder.com/testers/imperial-county/) — 15 testers ## City pages - [San Diego](https://ctcfinder.com/testers/san-diego-county/san-diego/) (San Diego County) — 42 testers - [El Cajon](https://ctcfinder.com/testers/san-diego-county/el-cajon/) (San Diego County) — 24 testers - [Chula Vista](https://ctcfinder.com/testers/san-diego-county/chula-vista/) (San Diego County) — 15 testers - [Escondido](https://ctcfinder.com/testers/san-diego-county/escondido/) (San Diego County) — 13 testers - [Lakeside](https://ctcfinder.com/testers/san-diego-county/lakeside/) (San Diego County) — 12 testers - [Oceanside](https://ctcfinder.com/testers/san-diego-county/oceanside/) (San Diego County) — 9 testers - [Valley Center](https://ctcfinder.com/testers/san-diego-county/valley-center/) (San Diego County) — 9 testers - [Ramona](https://ctcfinder.com/testers/san-diego-county/ramona/) (San Diego County) — 6 testers - [Santee](https://ctcfinder.com/testers/san-diego-county/santee/) (San Diego County) — 6 testers - [Calexico](https://ctcfinder.com/testers/imperial-county/calexico/) (Imperial County) — 6 testers - [Fallbrook](https://ctcfinder.com/testers/san-diego-county/fallbrook/) (San Diego County) — 5 testers - [National City](https://ctcfinder.com/testers/san-diego-county/national-city/) (San Diego County) — 5 testers - [Vista](https://ctcfinder.com/testers/san-diego-county/vista/) (San Diego County) — 5 testers - [San Marcos](https://ctcfinder.com/testers/san-diego-county/san-marcos/) (San Diego County) — 4 testers - [El Centro](https://ctcfinder.com/testers/imperial-county/el-centro/) (Imperial County) — 4 testers - [Carlsbad](https://ctcfinder.com/testers/san-diego-county/carlsbad/) (San Diego County) — 3 testers - [Poway](https://ctcfinder.com/testers/san-diego-county/poway/) (San Diego County) — 3 testers - [Imperial](https://ctcfinder.com/testers/imperial-county/imperial/) (Imperial County) — 3 testers ## Testing businesses with several credentialed testers - **[Draco Trucks](https://ctcfinder.com/tester/draco-trucks-san-diego/)** — 7424 Mission Gorge Road, San Diego, CA 92120 — (619) 287-7300. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing. - **[SD Heavy Truck & Equipment Repair](https://ctcfinder.com/tester/sd-heavy-truck-and-equipment-repair-lakeside/)** — 12067 Riverside Drive, Lakeside, CA 92040 — (619) 561-5317. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Kearny Mesa Truck Center](https://ctcfinder.com/tester/kearny-mesa-truck-center-san-diego/)** — 5624 Kearny Villa Road, San Diego, CA 92123 — (858) 571-5495. Services: OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Rincon Truck Center INC.](https://ctcfinder.com/tester/rincon-truck-center-inc-san-clemente/)** — 114 Rincon Ct, San Clemente, CA 92672 — (949) 492-3520. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Alejandro Valenzuela](https://ctcfinder.com/tester/alejandro-valenzuela-calexico/)** — Calexico, CA 92231 — (760) 554-7600. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Juan Campos - Bulldog Towing](https://ctcfinder.com/tester/juan-campos-bulldog-towing-chula-vista/)** — 1590 W Frontage Road, Chula Vista, CA 91911 — (619) 244-6009. Services: mobile testing, OBD testing, motorhome testing. ## Trucking in the San Diego & Imperial San Diego County includes the Otay Mesa border crossing, California's busiest commercial truck crossing at about one million trucks a year (GSA, 2022), and Imperial County includes the Calexico East crossing. Trucks from Mexico that operate in California are subject to Clean Truck Check, according to CARB. ## 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 San Diego & Imperial? CTC Finder lists 193 testing businesses in the San Diego & Imperial from CARB's public tester list (209 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 San Diego & Imperial? Yes. 171 listed businesses in the San Diego & Imperial 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 San Diego & Imperial? 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 San Diego & Imperial cities have the most Clean Truck Check testers? San Diego (42), El Cajon (24), Chula Vista (15). Every city with 3 or more listings has its own page with phone numbers and a Mobile filter.