Take CARB training and exam
… and become a credentialed Clean Truck Check tester. The free online training consists of video learning modules and the exam is completed via an online quiz. After passing the exam you will be assigned a tester ID that will be associated with the email address you registered with.
Please note: When registering for the training and exam, it is very important that you make sure to use the email address that you want to use later for submitting OBD snapshots to CARB. They will only accept your submissions if you use the email address that they have on their records with your tester ID.
» Learn more about the California Clean Truck Check Program
» Complete CARB Tester Training Course and Exam