Sapp Bros 2301

Clean Truck Check tester in Commerce City, CO.

Sapp Bros 2301 appears on CARB's public list of credentialed Clean Truck Check testers.

Location
7120 E 49th Ave, Commerce City, CO 80022
Phone
(303) 289-3900
Mobile testing
No (test at the shop)
OBD testing
No
Smoke opacity (non-OBD)
No
Motorhomes
No
Credentialed testers
1
Last verified

Call (303) 289-3900 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 Sapp Bros 2301 can test

The test CARB requires depends on the engine's fuel and model year. Based on the services Sapp Bros 2301 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 inspectionNot listed
California-registered motorhomeSame test as above by engine year, once a yearNot listed

For a 2012 or older diesel, the nearest listed tester with smoke opacity testing is Airlimits - Commerce City in Commerce City, about 1 mile away. See listing.

If you need a tester at your yard, the nearest listed tester that offers mobile testing is Airlimits - Commerce City in Commerce City, about 1 mile away. See listing.

Clean Truck Check testers in Colorado

Sapp Bros 2301 is one of 11 testing businesses in Colorado on CARB's public tester list. 9 of them offer mobile testing and 5 do smoke opacity tests. Testers outside California.

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 Sapp Bros 2301 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 Sapp Bros 2301 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 Airlimits - Commerce City (about 1 mile).

Can Sapp Bros 2301 test a 2012 or older diesel truck?

Sapp Bros 2301 does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is Airlimits - Commerce City (about 1 mile). Trucks from 2013 on get an OBD scan instead.

How much does Sapp Bros 2301 charge for a Clean Truck Check?

Sapp Bros 2301 has not published prices with us; call (303) 289-3900 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 Sapp Bros 2301 a CARB-credentialed tester?

Sapp Bros 2301 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 Commerce City

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 (303) 289-3900