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.
Non-Continuously Connected Devices
(scroll down for list of continuously connected devices)
EO # | Vendor / Contact Information | Non-Continuously Connected (NCC) Devices* | OBD Protocol / Port / Connector** |
RA CONSULTING GmbH RA Automotive Software Solutions, Inc. | Silver Snap-Tool with Drewtech DrewLinQ | This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports. | |
RA CONSULTING GmbH
| Silver Snap-Tool with DG Technologies DPA XL | This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports. | |
RA CONSULTING GmbH
| Silver Snap-Tool with Kvaser Leaf Light | This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports. | |
RA CONSULTING GmbH
| Silver Snap-Tool with Kvaser U100 | This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports. | |
RA CONSULTING GmbH
| Silver Snap-Tool with Nexiq USB-Link 2 - NCC | This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports. | |
RA CONSULTING GmbH | Silver Snap-Tool with Nexiq USB-Link 3 | This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports. | |
HEM Data Corporation HEM Data Corporation | DAWN OBD Inspector | This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports. | |
Noregon Systems LLC Noregon Systems LLC | Truck Check Up with DLA+ 3.0 (USB) | This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports. | |
Noregon Systems LLC Noregon Systems LLC | Truck Check Up with DLA+ 3.0 (Wireless) | This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports. | |
DG Technologies DG Technologies | DPA INSPECT with DPA Classic | This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports. | |
DG Technologies | DPA INSPECT with DPA XL | This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports. | |
DG Technologies | DPA INSPECT with DPA 5 Pro | This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports. | |
| IM-008-0001 | Opus Inspection, Inc. Opus Inspection, Inc. | Opus Clean Truck with Opus CleanTruck OBD Device Kit | 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* | OBD Protocol / Port / Connector** |
| IM-004-0001 | 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-006-0001-1 | Pacific Track, LLC Pacific Track | PT40 | This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports. |
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 9-pin SAE J1939 diagnostic port. |
*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.