Renew or update your CDL

Commercial driver license

When you apply to renew or upgrade your commercial driver license (CDL), you must:

• provide any updated information.
• complete any additional testing requirements for an upgrade.

Hazardous materials endorsement

If you want to keep or upgrade a hazardous materials endorsement, you must:

• provide any updated information.
• complete any additional testing requirements for an upgrade.
• pass a hazardous materials knowledge test.
• submit fingerprints and pass a federal background check.