Commercial Driver's License (CDL) Requirements by State
CDLs are issued by each state's DMV or DOT to uniform FMCSA standards. Classes A, B, C cover combos, heavy vehicles, and hazmat loads. The exact hours, fees and exams are set by each state's board - here is the state-by-state breakdown, sourced from official licensing authorities.
Last updated August 7, 2026. Licensing rules change - confirm with the official board before applying.
National exam basics
CDL standards are set federally by the FMCSA and are uniform across states; each state DMV administers the knowledge and skills tests.
Commercial Driver's License (CDL) requirements by state
FAQ
What are the CDL classes?
Class A covers combination vehicles such as tractor trailers, Class B covers heavy straight trucks and buses, and Class C covers smaller vehicles carrying hazardous materials or 16 or more passengers.
Do I need CDL training before I can test?
Since October 2022 the FMCSA Entry-Level Driver Training rule requires new drivers to complete training at a registered school before taking the skills test.
What is a DOT medical certificate?
Drivers who cross state lines or are not excepted must carry a medical certificate from an accredited physician, renewed every two years.
If I move, does my CDL transfer?
You must get a new CDL in your new home state, usually within 30 days. Most states waive the full test but may require a knowledge exam.