RJ Express Services LLC
Clean Truck Check tester in Santa Clara, CA (Santa Clara County).
- Mobile testing
- OBD test
RJ Express Services LLC appears on CARB's public list of credentialed Clean Truck Check testers. It lists mobile testing, OBD testing. Mobile testing means the tester can come to your yard or job site.
- Location
- 1555 Laurelwood Rd Suite 6, Santa Clara, CA 95054
- County
- Santa Clara County
- Phone
- (415) 871-1361
- Mobile testing
- Yes — comes to your yard
- OBD testing
- Yes
- Smoke opacity (non-OBD)
- No
- Motorhomes
- No
- Credentialed testers
- 1
- Last verified
Call (415) 871-1361 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 RJ Express Services LLC can test
The test CARB requires depends on the engine's fuel and model year. Based on the services RJ Express Services LLC 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 | Not listed |
| California-registered motorhome | Same test as above by engine year, once a year | Not listed |
For a 2012 or older diesel, the nearest listed tester with smoke opacity testing is IH in Santa Clara, about 1 mile away. See listing.
Clean Truck Check testers in Santa Clara County
RJ Express Services LLC is one of 79 testing businesses in Santa Clara County on CARB's public tester list. 67 of them offer mobile testing and 27 do smoke opacity tests. In Santa Clara itself there are 3 listed businesses, 2 of them mobile. All testers in Santa Clara 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 RJ Express Services LLC 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 RJ Express Services LLC offer mobile Clean Truck Check testing?
Yes. RJ Express Services LLC 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 RJ Express Services LLC test a 2012 or older diesel truck?
RJ Express Services LLC does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is IH (about 1 mile). Trucks from 2013 on get an OBD scan instead.
How much does RJ Express Services LLC charge for a Clean Truck Check?
RJ Express Services LLC has not published prices with us; call (415) 871-1361 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 RJ Express Services LLC a CARB-credentialed tester?
RJ Express Services LLC 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 Santa Clara
-
IH
- Mobile testing
- OBD test
- Smoke opacity
- Motorhomes
-
Jspeed
- OBD test
- Motorhomes
-
Smog Check Car
- OBD test
- Motorhomes
-
Benjamin Nguyen
- Mobile testing
- OBD test
- Smoke opacity
- Motorhomes
-
Ed Boland
- Mobile testing
- OBD test
-
Jose Medina
- OBD test
- Smoke opacity
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.