A white camper van parked in a scenic mountain landscape with a clear blue sky, lush greenery, and a stream running through the valley.
Green background banner with bold dark green text reading 'Mobile Clean Truck Check Testing'.
Logo for Clean Truck Check with a stylized factory or truck icon above the text, which says 'Clean Truck Check' with 'Credentialed Tester' underneath.

Green Check Testing and Fleet Services brings CARB-credentialed Clean Truck Check testing to your yard across the Inland Empire and Orange County. We test your trucks on-site — OBD testing for 2013 and newer engines, SAE J1667 opacity testing for older diesels — and submit results directly to CARB so your registrations stay clear. We track your due dates and come back before each test is due, and we can do your 90-day BIT inspections on the same visit. Motorhome and RV owners: we test those too.

CLEAN TRUCK CHECK

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Let Green Check be your go to service provider on your motorhome for the California regulated Clean Truck Check program. We will come to your location and perform the tests when the units are available and send the results straight to CARB.

OBD testing is twice a year and Green Check can add you to our tracking software so you never miss a test.

OBD testing applies to all diesel commercial trucks and motorhomes that are 2013 engine year and newer with a GVW rating over 14,000lbs.

For units with engine years older than 2013 Green Check can perform the SAE J1667 Opacity test with visual inspection.

OBD testing or

Opacity testing SAE J1667 with inspection

Stay compliant with Green Check Testing!

A white utility truck with a green check logo and a QR code on the side, parked outdoors. Someone wearing a high-visibility safety vest is inspecting the vehicle, with part of their body visible beneath the truck.

Service Area

Clean Truck Check Riverside

Clean Truck Check Corona

Clean Truck Check Perris

Clean Truck Check San Bernardino

Clean Truck Check Chino

Clean Truck Check Ontario

Clean Truck Check Rancho Cucamonga

Clean Truck Check Anaheim

Clean Truck Check Irvine

Clean Truck Check Santa Ana

Clean Truck Check Brea

And Surrounding Areas

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