I have a CDL with a hazardous materials endorsement. What is required to add the school bus endorsement to my license?
Adding a new endorsement or upgrading CDL class requires a new transaction. Based on Federal regulations defined by the USA PATRIOT ACT, any applicant for a new or renewal license with a hazardous materials (HazMat) endorsement must have an approved security threat assessment response from the Transportation Security Administration (TSA) prior to issuance. If you do not have a current threat assessment on file, you will be required to apply and obtain approval from the TSA prior to issuance of a full term CDL with an H or X HazMat endorsement. This also includes applicants adding a motorcycle endorsement.
