Clean Truck Check - OBD Test Devices
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The California Air Resources Board (CARB) has issued Executive Orders (EO) for the following devices that meet the requirements for periodic On-Board Diagnostic (OBD) vehicle emissions testing starting in 2024 as specified in Title 13, California Code of Regulations (CCR), Section 2196.3(a)(1) and (2) of the Heavy-Duty Inspection and Maintenance (HD I/M) Regulation. Only CARB-certified OBD test devices can be used when performing periodic compliance tests on eligible vehicles for Clean Truck Check.
Please reach out directly to device vendors to purchase CARB-certified OBD test devices for your vehicles/fleet. This list is subject to change and CARB will include additional certified test devices when vendors complete the certification process and are issued an EO for their device.
Please note that Continuously Connected Devices may be sold by resellers and/or telematics providers whose company name is different from the certified vender, or manufacturer names. The device’s physical branding may also be different from the certified vender’s name. However, each device will have at least one unique physical identifier to indicate it is a certified device. Ask your telematics provider or reseller for proof of certification if you are unsure.
Guidance for Volvo/Mack Trucks Using the SAE J1979-2 (OBDonUDS) Protocol
More information for more information about testing vehicles with the J1979-2 (OBDonUDS) Protocol.
Non-Continuously Connected Devices
(Scroll down for list of continuously connected devices)
EO # | Vendor / Contact Information | Non-Continuously Connected (NCC) Devices* (Click on link for photo) | OBD Protocol / Port / Connector** |
RA CONSULTING GmbH RA Automotive Software Solutions, Inc. | This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports. | ||
RA CONSULTING GmbH
| This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports. | ||
RA CONSULTING GmbH
| This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports. | ||
RA CONSULTING GmbH
| This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports. | ||
RA CONSULTING GmbH
| This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports. | ||
RA CONSULTING GmbH
| This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports. | ||
| IM-001-0007-4 | RA CONSULTING GmbH
| Silver Snap-Tool with Kvaser Leaf v3 | This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports. |
HEM Data Corporation HEM Data Corporation | DAWN OBD Inspector for iOS with CAN Mini Streamer (Wireless) | This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports. | |
Noregon Systems LLC Noregon Systems LLC | This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports. | ||
Noregon Systems LLC
| Truck Check Up with DLA+ 3.0 XBT Adapter (Wireless), DLA+ 3.0 Adapter (Wireless) | This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports. | |
DG Technologies DG Technologies | This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports. | ||
DG Technologies
| This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports. | ||
DG Technologies
| This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports. | ||
| IM-008-0001-5 | Opus Inspection, Inc. Opus Inspection, Inc. | This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports. |
Continuously Connected Devices
EO # | Vendor / Contact Information | Continuously Connected (CC) Devices* (Click on link for photo) | OBD Protocol / Port / Connector** |
| IM-004-0001-4 | Geotab Inc. Geotab Inc. | GO9, GO9B, GO9+ family of devices. | This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports. |
| IM-006-0001-4 | Pacific Track, LLC Pacific Track | This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports. | |
Zonar Systems Zonar Systems | This device supports the 9-pin SAE J1939 diagnostic port. | ||
| IM-007-0002-2 | Zonar Systems Zonar Systems | V4, V4 Base, V4 Essential, V4E-NBT, VT4 FSA, VT4, VT4 Base FSA, VT4 Base, VT4 Essential, VT4 Essential FSA, VT4E-NBT, VT4E-NBT FSA, V4 Base 2, VT4 Base 2-FSA, VT4 Base 2 | This device supports the 16-pin SAE J1979 diagnostic port |
| IM-009-0001-1 | Samsara Inc. Samsara Inc. | VG-55; VG54-NA; VG54-NAH; VG34 | This device supports the 9-pin SAE J1939 diagnostic port. |
| IM-010-0001-1 | Verizon Connect Verizon Connect | Xirgo XT6372R; Xirgo XT6383 | This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports. |
*NCC means non-continuously connected; these scan tool-type devices can be used for testing events on multiple vehicles. CC means continuously connected; these are telematics devices that are assigned to one vehicle for on-going testing events.
** The most common protocols for Heavy-Duty/Medium-Duty vehicles are SAE J1939 and J1979. In general, vehicles with Cummins/Detroit Diesel/Navistar/Paccar engines are using the SAE J1939 connector, and vehicles with Ford/Hino/Isuzu/Volvo engines are using the SAE J1979 (or OBD II) connector.