--- title: "Clean Truck Check Testers in Livingston, CA (3 listed)" description: "Find 3 CARB-credentialed Clean Truck Check testers in Livingston, Merced County: 3 offer mobile testing, 1 do smoke opacity tests. Phone numbers, services and…" url: "https://ctcfinder.com/testers/merced-county/livingston/" updated: "2026-11-01" publisher: "CTC Finder (independent directory, not affiliated with CARB)" --- # Clean Truck Check testers in Livingston, CA 3 testing businesses in Livingston (Merced County) are on CARB's public Clean Truck Check tester list (3 credentialed testers). 3 offer mobile testing, 1 do smoke opacity tests, 1 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. ## Testers in Livingston - **[Gurpreet Atwal](https://ctcfinder.com/tester/gurpreet-atwal-livingston/)** — Livingston, CA 95334 — (209) 913-9160. Services: mobile testing, OBD testing. - **[Harpreet Singh Jolly](https://ctcfinder.com/tester/harpreet-singh-jolly-livingston/)** — Livingston, CA 95334 — (559) 999-2732. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Jorge De La Rosa](https://ctcfinder.com/tester/jorge-de-la-rosa-livingston/)** — Livingston, CA 95334 — (209) 850-1232. Services: mobile testing, OBD testing. ## More testers within 20 miles - **[Hargreaves Ranches LLC](https://ctcfinder.com/tester/hargreaves-ranches-llc-delhi/)** — 17736 Swanson Rd, Delhi, CA 95315 — (209) 988-7214 — 5 mi. Services: mobile testing, OBD testing. - **[Cen-Cal Truck Check](https://ctcfinder.com/tester/cen-cal-truck-check-atwater/)** — 3292 Mariner Ct, Atwater, CA 95301 — (209) 628-3882 — 6 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Israel Vargas](https://ctcfinder.com/tester/israel-vargas-atwater/)** — Atwater, CA 95301 — (209) 321-8975 — 6 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Mario Alejandro Garcia Tester](https://ctcfinder.com/tester/mario-alejandro-garcia-tester-atwater/)** — 2385 Redwood Ave, Atwater, CA 95301 — (209) 263-2529 — 6 mi. Services: mobile testing, OBD testing. - **[Monster Equipment](https://ctcfinder.com/tester/monster-equipment-atwater/)** — 554 E Bellevue Rd, Atwater, CA 95301 — (209) 605-8707 — 6 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Rafael Orozco](https://ctcfinder.com/tester/rafael-orozco-atwater/)** — Atwater, CA 95301 — (209) 600-9941 — 6 mi. Services: mobile testing, OBD testing. - **[Valley SmogWorks](https://ctcfinder.com/tester/valley-smogworks-stevinson/)** — 19240 First Ave, Stevinson, CA 95374 — (209) 232-5880 — 6 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Dan's CTC](https://ctcfinder.com/tester/dans-ctc-winton/)** — 6760 California St, Winton, CA 95388 — (209) 564-1633 — 10 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Taylor's](https://ctcfinder.com/tester/taylors-winton/)** — 6171 N Winton Way, Winton, CA 95388 — (209) 261-1048 — 10 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[AC AG Services, INC.](https://ctcfinder.com/tester/ac-ag-services-inc-turlock/)** — 605 W Clausen Rd, Turlock, CA 95380 — (209) 678-6867 — 11 mi. Services: mobile testing, OBD testing. - **[Balswick Quick Smog](https://ctcfinder.com/tester/balswick-quick-smog-turlock/)** — 379 N Golden State Blvd, Turlock, CA 95380 — (209) 216-7132 — 11 mi. Services: OBD testing. - **[J Jesus Mendoza Avila](https://ctcfinder.com/tester/j-jesus-mendoza-avila-turlock/)** — Turlock, CA 95380 — (209) 850-5550 — 11 mi. Services: mobile testing, OBD testing. ## Cost Typical published prices in California: OBD test $50–$135 per vehicle; smoke opacity test $190–$200. Prices are set by each tester. ## Frequently asked questions ### How many Clean Truck Check testers are in Livingston? CTC Finder lists 3 testing businesses in Livingston from CARB's public tester list (3 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 Livingston? Yes. 3 listed businesses in Livingston 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 Livingston? 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/). ### How often does my truck need a Clean Truck Check test? Most trucks test twice a year, on a schedule tied to the DMV registration expiration date. CARB says OBD trucks move to four tests a year beginning October 2027. California-registered (non-commercial) motorhomes and agricultural vehicles test once a year. See the [deadline guide](https://ctcfinder.com/guide/deadlines-2026-2027/). ## Nearby cities - [Atwater](https://ctcfinder.com/testers/merced-county/atwater/) — 5 listings, 6 mi - [Turlock](https://ctcfinder.com/testers/stanislaus-county/turlock/) — 7 listings, 12 mi - [Denair](https://ctcfinder.com/testers/stanislaus-county/denair/) — 4 listings, 14 mi - [Merced](https://ctcfinder.com/testers/merced-county/merced/) — 13 listings, 15 mi - [Ceres](https://ctcfinder.com/testers/stanislaus-county/ceres/) — 7 listings, 18 mi - [Dos Palos](https://ctcfinder.com/testers/merced-county/dos-palos/) — 4 listings, 22 mi - [Los Banos](https://ctcfinder.com/testers/merced-county/los-banos/) — 8 listings, 24 mi - [Modesto](https://ctcfinder.com/testers/stanislaus-county/modesto/) — 23 listings, 25 mi - [Oakdale](https://ctcfinder.com/testers/stanislaus-county/oakdale/) — 5 listings, 31 mi - [Ripon](https://ctcfinder.com/testers/san-joaquin-county/ripon/) — 3 listings, 35 mi