If you apply for a HazMat endorsement, you must undergo a check through which agency? Question If you apply for a HazMat endorsement, you must undergo a check through which agency? Answers The Transportation Security Administration The Federal Bureau of Investigation The Department of Energy The Department of Defense Explanation To obtain an original or renewed hazardous materials endorsement, you must pass a Transportation Security Administration (TSA) background check. This questions appears in the following tests: Alabama HazMat Colorado HazMat Colorado HazMat Delaware HazMat Illinois HazMat Indiana HazMat Nebraska HazMat New Jersey HazMat New York HazMat North Carolina HazMat Oregon HazMat South Carolina HazMat South Carolina HazMat Utah HazMat