The TSA Hazardous Materials Endorsement Threat Assessment Program conducts a security threat assessment for any driver seeking to obtain, renew, or transfer a hazardous materials endorsement (HME) on a state-issued commercial drivers license (CDL).

The program was implemented to meet the requirements of the USA PATRIOT Act (pdf, 848Kb), which prohibits states from issuing a license to transport hazardous materials in commerce unless a determination has been made that the driver does not pose a security risk. The Act further requires that the risk assessment include checks of criminal history records, legal status, and relevant international databases.

If you seek to obtain, renew, or transfer an HME on your CDL, you must apply for a security threat assessment. TSA rules require you to begin applying for the security threat assessment at least 30 days prior to the expiration of your CDL.