Never Think About CARB Compliance Again

The Compliance Burden, Off Your Plate

Managing Clean Truck Check across a fleet is not one task — it's a rolling calendar. Different trucks, different deadlines, OBD versus opacity, CTC-VIS submissions, and a registration hold waiting for anything that slips.

Most fleet and operations managers are handling that on top of dispatch, maintenance, drivers, and everything else. It's the kind of thing that stays quiet until it's suddenly urgent.

So I take it. I keep a record of every truck I test for you and what its next deadline is. When a truck comes due, you hear from me first — not from the DMV. I show up where your trucks are parked, test them in 15 to 20 minutes each, submit the results directly to CTC-VIS, and confirm when it's filed.

No trucks leaving the yard. No drivers sitting in a queue. No spreadsheet you have to keep alive.

October 2027 Doubles Your Testing Workload

Right now most of your non-agricultural diesel units test twice a year. Beginning October 2027, every OBD-equipped vehicle — 2013 and newer diesel engines, 2018 and newer alternative-fuel engines — moves to four tests per year.

For a 15-truck fleet that's 30 testing events a year becoming 60, on staggered per-vehicle deadlines, none of which line up neatly. If deadline tracking is already the annoying part of your month, that's the part that doubles.

Two things stay where they are: non-commercial motorhomes and agricultural vehicles remain annual, and older engines that take a smoke opacity test rather than an OBD scan stay semi-annual. So a mixed fleet ends up running three different cadences at once, which is exactly the kind of thing that gets missed.

There's also a capacity problem coming that nobody's pricing in yet. When demand for credentialed testers in the North Bay roughly doubles overnight, the testers already committed to standing fleet accounts won't have much room left. Fleets that set up a schedule before then keep their slot.

Full breakdown of the 2027 change →