CCW

Clean Truck Check tester in Riverside, CA (Riverside County).

CCW appears on CARB's public list of credentialed Clean Truck Check testers. It lists smoke opacity (non-OBD) testing.

Location
1863 Service Ct, Riverside, CA 92507
County
Riverside County
Phone
(951) 684-9585
Mobile testing
No (test at the shop)
OBD testing
No
Smoke opacity (non-OBD)
Yes
Motorhomes
No
Credentialed testers
1
Last verified

Call (951) 684-9585 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. Typical published prices for an OBD test are $50–$135 per vehicle (see cost guide).

Which trucks CCW can test

The test CARB requires depends on the engine's fuel and model year. Based on the services CCW lists on CARB's tester list:

Your vehicleTest requiredThis tester
Diesel, model year 2013 or newerOBD scanNot listed
Alternative fuel (natural gas, propane), 2018 or newerOBD scanNot listed
Diesel, model year 2012 or older (no OBD)Smoke opacity test (SAE J1667) plus visual inspectionYes
California-registered motorhomeSame test as above by engine year, once a yearNot listed

If you need a tester at your yard, the nearest listed tester that offers mobile testing is Aaron’s Diesel Pro in Riverside, about 1 mile away. See listing.

Clean Truck Check testers in Riverside County

CCW is one of 251 testing businesses in Riverside County on CARB's public tester list. 233 of them offer mobile testing and 102 do smoke opacity tests. In Riverside itself there are 48 listed businesses, 45 of them mobile. All testers in Riverside 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 CCW 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 CCW offer mobile Clean Truck Check testing?

Not according to CARB's tester list; plan to bring the truck to the tester. The nearest listed mobile tester is Aaron’s Diesel Pro (about 1 mile).

Can CCW test a 2012 or older diesel truck?

Yes. CCW 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 CCW charge for a Clean Truck Check?

CCW has not published prices with us; call (951) 684-9585 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 CCW a CARB-credentialed tester?

CCW 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 Riverside

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.

Call (951) 684-9585