OBD Test Devices

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.

EO #	Vendor / Contact Information	Non-Continuously Connected (NCC) Devices*	OBD Protocol / Port / Connector**
IM-001-0001-1	RA CONSULTING GmbH RA Automotive Software Solutions, Inc. 1850 Research Drive, Suite 208 Troy, MI 48083 (586) 782 5121 sales@ra-automotive.net	Silver Snap-Tool with Drewtech DrewLinQ - NCC	This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports.
IM-001-0002-1	RA CONSULTING GmbH (see contact information above)	Silver Snap-Tool with DG Technologies DPA XL - NCC	This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports.
IM-001-0003-1	RA CONSULTING GmbH (see contact information above)	Silver Snap-Tool with Kvaser Leaf Light - NCC	This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports.
IM-001-0004-1	RA CONSULTING GmbH (see contact information above)	Silver Snap-Tool with Kvaser U100 - NCC	This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports.
IM-001-0005-1	RA CONSULTING GmbH (see contact information above)	Silver Snap-Tool with Nexiq USB-Link 2 - NCC	This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports.
IM-001-0006-1	RA CONSULTING GmbH (see contact information above)	Silver Snap-Tool with Nexiq USB-Link 3 - NCC	This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports.
IM-002-0001-2	HEM Data Corporation HEM Data Corporation 17320 12 Mile Road Southfield, MI 48076 (248) 559-5607 sales@hemdata.com	DAWN OBD Inspector - NCC	This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports.
IM-003-0001-2	Noregon Systems LLC Noregon Systems LLC 7823 National Service Road Greensboro, NC 27409 (855) 906-3491 (option 3) salessolutions@noregon.com	Truck Check Up with DLA+ 3.0 (USB) - NCC	This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports.
IM-003-0002-2	Noregon Systems LLC Noregon Systems LLC 7823 National Service Road Greensboro, NC 27409 (855) 906-3491 (option 3) salessolutions@noregon.com	Truck Check Up with DLA+ 3.0 (Wireless) - NCC	This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports.
IM-005-0001-1	DG Technologies 33604 West Eight Mile Road Farmington Hills, MI 48335 (248) 888-2000 phone, (248) 888-9977 faxsales@dgtech.com	NCC - DPA INSPECT with DPA Classic	This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports.
IM-005-0002-1	DG Technologies (see contact information above)	NCC - DPA INSPECT with DPA XL	This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports.
IM-005-0003-1	DG Technologies (see contact information above)	NCC - DPA INSPECT with DPA 5 Pro	This device supports both 9-pin SAE J1939 and 16-pin SAE J1979 diagnostic ports.

EO #	Vendor / Contact Information	Continuously Connected (CC) Devices*	OBD Protocol / Port / Connector**
IM-007-0001	Zonar Systems Zonar Systems 821 2nd Avenue, Suite 1100 Seattle, WA 98104 (888) 778-6868 (#2) customercare@zonarsystems.com	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.

EO #

Vendor / Contact Information

Continuously Connected (CC) Devices*

OBD Protocol / Port / Connector**

IM-007-0001

Zonar Systems

Zonar Systems
821 2nd Avenue, Suite 1100
Seattle, WA 98104
(888) 778-6868 (#2)
customercare@zonarsystems.com

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.