Your Source for CARB Compliance
DPA Inspect and DPA XL are your approved
inspection tools for Clean Truck Check success.
Simple and Secure Testing with DPA Inspect
DPA Inspect makes it easy for technicians to determine the health of a vehicle’s emissions control system by performing and submitting the inspection and maintenance testing required for Clean Truck Check compliance using our secure software and trusted DPA diagnostics tools.

CARB Clean Truck Check

The California Air Resources Board (CARB) Clean Truck Check program was established to ensure that all vehicles maintain their emissions control systems to reduce pollution and improve air quality. Beginning in January 2025, heavy-duty vehicles operating in California will face penalties if they fail to pass regular inspections administered by credentialed testers with tools approved for use in the Clean Truck Check program.
Your Source for CARB Compliance

PASS Your Clean Truck Check with DPA Inspect
Plug In
Attach your DPA device to the vehicle's diagnostic connector.
Activate
Open DPA Inspect and input the vehicle’s VIN and license plate number.
Start Inspection
Turn on the vehicle and initiate the scan in DPA Inspect.
Submit and Review
Inspect the vehicle, send the encrypted data to CARB, and review the results.
Tools for CARB Compliance

DPA Inspect /
DPA XL Bundle
DG-400-10970
DPA Inspect and the DPA XL hardware are certified CARB test tools that have been approved to work together to extract and encrypt OBD data and send it to CARB for the Clean Truck Check program.
Bundle includes:
- DPA Inspect PC application, one-year subscription for one user
- DPA XL Kit, includes DPA XL device, standard 9-pin Deutsch cable, USB cable, quick-start guide and carry case
$1315 then $495/year
Per User

DPA Inspect /
DPA XL V13 Bundle
DG-400-10954
DPA Inspect and the DPA XL V13 hardware are a certified CARB test tool kit that have been approved to work together to extract and encrypt OBD data and send it to CARB for the Clean Truck Check program.
Bundle includes:
- DPA Inspect PC application, one-year subscription for one user
- DPA XL V13 Kit, includes DPA XL, a “Y” cable with J1962 OBD II-style connector and a standard 9-pin Deutsch connector, USB cable, quick-start guide and carry case
$1340 then $495/year
Per User

DPA Inspect Software
DG-620-10950
DPA Inspect is our CARB-certified software application that works with the DG Technologies DPA XL, DPA 5 PRO and DPA Classic (available soon) diagnostic hardware to extract and encrypt data and send directly to CARB for pass or fail in its Clean Truck Check program.
$495/year
Per User
Frequently Asked Questions (FAQs)

Contact CARB
For questions about Clean Truck Check,
contact CARB:
(800)242-4450 | helpline@arb.ca.gov
1001 I Street, Sacramento, CA 95814
P.O. Box 2815, Sacramento, CA 95812
