Carlos Mazon

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

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

Location
Madera, CA 93637
County
Madera County
Phone
(559) 975-5092
Mobile testing
No (test at the shop)
OBD testing
Yes
Smoke opacity (non-OBD)
Yes
Motorhomes
No
Credentialed testers
1
Last verified

Call (559) 975-5092 Open in Google Maps

The street address is not published for this listing (mobile or home-based tester). Call to arrange the test.

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 Carlos Mazon can test

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

Your vehicleTest requiredThis tester
Diesel, model year 2013 or newerOBD scanYes
Alternative fuel (natural gas, propane), 2018 or newerOBD scanYes
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 Advanced Automotive Smog & Repair INC in Madera, about 1 mile away. See listing.

Clean Truck Check testers in Madera County

Carlos Mazon is one of 22 testing businesses in Madera County on CARB's public tester list. 19 of them offer mobile testing and 6 do smoke opacity tests. In Madera itself there are 15 listed businesses, 12 of them mobile. All testers in Madera 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 Carlos Mazon 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 Carlos Mazon 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 Advanced Automotive Smog & Repair INC (about 1 mile).

Can Carlos Mazon test a 2012 or older diesel truck?

Yes. Carlos Mazon 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 Carlos Mazon charge for a Clean Truck Check?

Carlos Mazon has not published prices with us; call (559) 975-5092 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 Carlos Mazon a CARB-credentialed tester?

Carlos Mazon 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 Madera

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 (559) 975-5092