This CDL hazmat test course is designed for commercial motor vehicle drivers seeking a hazardous materials (H) endorsement to their Commercial Driver's License (CDL). The hazmat endorsement is required to become a hazmat driver so that you can haul certain types of specialized freight and open new career opportunities as a driver. If you seek an endorsement such as this, you must complete this curriculum to take the state-administered knowledge test for the H endorsement. The hazmat theory course must be completed to take the state Hazmat Endorsement Knowledge Exam, which is usually administered at the state motor vehicle office. Upon completion of this hazmat endorsement training course, your completion record will be uploaded to the U.S. Department of Transportation's (DOT) TPR, and you can take your state's hazmat knowledge test. Students who successfully take the knowledge test can be issued the H endorsement.