Earl Cain Trucking
Clean Truck Check tester in Visalia, CA (Tulare County).
- Mobile testing
- OBD test
- Smoke opacity
- Motorhomes
Earl Cain Trucking appears on CARB's public list of credentialed Clean Truck Check testers. It lists mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. Mobile testing means the tester can come to your yard or job site.
- Location
- 2347 W Babcock Ave, Visalia, CA 93291
- County
- Tulare County
- Phone
- (559) 723-2552
- Mobile testing
- Yes — comes to your yard
- OBD testing
- Yes
- Smoke opacity (non-OBD)
- Yes
- Motorhomes
- Yes
- Credentialed testers
- 1
- Last verified
Call (559) 723-2552 Open in Google Maps
Before you call
- Have your VIN, odometer reading and plate number ready.
- Your vehicle must be registered in CTC-VIS and the annual compliance fee paid; the tester submits the result to CARB.
- Ask for the price per vehicle and any mobile trip fee. Typical published prices for an OBD test are $50–$135 per vehicle (see cost guide).
Which trucks Earl Cain Trucking can test
The test CARB requires depends on the engine's fuel and model year. Based on the services Earl Cain Trucking lists on CARB's tester list:
| Your vehicle | Test required | This tester |
|---|---|---|
| Diesel, model year 2013 or newer | OBD scan | Yes |
| Alternative fuel (natural gas, propane), 2018 or newer | OBD scan | Yes |
| Diesel, model year 2012 or older (no OBD) | Smoke opacity test (SAE J1667) plus visual inspection | Yes |
| California-registered motorhome | Same test as above by engine year, once a year | Yes |
Clean Truck Check testers in Tulare County
Earl Cain Trucking is one of 62 testing businesses in Tulare County on CARB's public tester list. 53 of them offer mobile testing and 31 do smoke opacity tests. In Visalia itself there are 19 listed businesses, 15 of them mobile. All testers in Tulare County.
When your truck is due
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. You can test up to 90 days before a deadline. Get a free email reminder before each one.
How to check a tester's credential
CARB publishes its Clean Truck Check tester list, where Earl Cain Trucking appears as of November 1, 2026. Listing there is optional, so a missing name does not always mean a tester is not credentialed. After the test, check that the passing result shows for your vehicle in CTC-VIS; that is what counts for compliance.
Frequently asked questions
Does Earl Cain Trucking offer mobile Clean Truck Check testing?
Yes. Earl Cain Trucking says on CARB's tester list that it offers mobile testing, so it can come to your yard or job site. Ask about a trip fee when you call.
Can Earl Cain Trucking test a 2012 or older diesel truck?
Yes. Earl Cain Trucking lists smoke opacity testing, the test CARB requires for diesel trucks of model year 2012 and older (no OBD). See OBD vs smoke opacity.
How much does Earl Cain Trucking charge for a Clean Truck Check?
Earl Cain Trucking has not published prices with us; call (559) 723-2552 for a quote. Published California prices are usually $50–$135 per vehicle for an OBD test and $190–$200 for a smoke opacity test, plus CARB's annual fee ($32.13 in 2026). See the cost guide.
Is Earl Cain Trucking a CARB-credentialed tester?
Earl Cain Trucking appears on CARB's public Clean Truck Check tester list, last checked November 1, 2026. Only credentialed testers can submit results to CARB; after the test, confirm the passing result shows for your vehicle in CTC-VIS.
Other testers near Visalia
-
C & M Truck & Trailer LLC
- Mobile testing
- OBD test
- Motorhomes
-
California Tire Service
- Mobile testing
- OBD test
-
Daniel’s clean truck check
- Mobile testing
- OBD test
- Motorhomes
-
KRC safety co
- Mobile testing
- OBD test
- Smoke opacity
- Motorhomes
-
Stacks Smoke Testing
- Mobile testing
- OBD test
- Motorhomes
-
Busloop
- Mobile testing
- OBD test
- Motorhomes
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.