Question: Why is there only one OBD test device available for Clean Truck Check?
Answer: Currently there is only one CARB-verified on-board diagnostic (OBD) test device available. We are in the process of collaborating with several device vendors to expand the number of devices that can be used for the Clean Truck Check. However, it is ultimately up to the vendors to work with us to ensure that their devices meet the vendor specifications and requirements for data collection, transmission, and security. We are optimistic that more device options from various vendors will become available in the near future.