How Much Does CARB Clean Truck Check Testing Cost in California?

CARB Clean Truck Check costs come in two parts: the state’s annual compliance fee, which is $32.13 per vehicle in 2026, plus the testing fee you pay a credentialed tester. The test fee itself varies by test type, location, and vehicle count, and drive-in testing adds hidden costs that mobile testing avoids.

Fast facts (2026)

State compliance fee: $32.13 per vehicle per year, paid to CARB (up from $31.18 in 2025). This is separate from the test itself.
Test type matters: OBD (2013+ engines) is typically faster and lower-cost than OVI (2012 and older).
Hidden drive-in cost: Fuel, driver time, and lost productivity can add $100 to $200 per truck on top of the test fee.
Fleet volume pricing: Multiple vehicles tested in one visit usually qualify for volume rates.

What affects the cost of CARB testing?

Three things drive your total cost: the CARB annual compliance fee ($32.13 per vehicle in 2026), which test type your vehicle needs (OBD or OVI), and whether you drive to a fixed station or use a mobile tester.

OBD testing cost (2013 and newer engines)

OBD testing is the faster, simpler test for vehicles with 2013 or newer engines. The tester connects a diagnostic device to your OBD port and reads the emissions system status electronically. Because it requires less time and equipment, OBD testing is typically the more affordable option, and results upload immediately.

OVI testing cost (2012 and older engines)

OVI testing applies to older engines and involves a physical smoke opacity test plus a hands-on visual inspection. It takes longer and requires specialized equipment, so it generally costs more than OBD testing.

The hidden cost of drive-in testing

At a fixed testing station, the test fee is only part of your total cost. You also pay for driver time, fuel, lost productivity, and scheduling hassle. For an owner-operator running a single truck, that can easily add $100 to $200 in hidden costs on top of the test fee. For fleets, the logistics costs multiply with every rig.

Why mobile testing is often the better value

Mobile CARB testing removes those hidden costs. Our credentialed technicians come to your yard, terminal, or home across Sacramento, the Sacramento Region, and the SF Bay Area. The truck stays at your location. Your driver stays on the job. You pay for the test, not the round trip.

For OBD-equipped vehicles (2013+), results upload to the CARB portal immediately, so your DMV hold clears the same business day on a pass.

Call for current pricing

Pricing depends on your vehicle type, location, and how many vehicles you are testing. Fleet operators often qualify for volume rates when scheduling multiple trucks in one visit. Call us at (916) 538-7777 for a quote.