CDL is short for Commercial Drivers' License. There are many different classes of CDL including Class A, B, and C. In addition to these; you can add a multitude of endorsements including:

☛ H Endorsement: for transporting hazardous materials.

☛ N Endorsement: for operating tank vehicles.

☛ P Endorsement: for operating a truck with a specified number of passengers.

☛ S Endorsement: for operating a school bus.

☛ T Endorsement: for towing a double or triple trailer.

☛ X Endorsement: for operating a combination of HAZMAT and tank vehicles.

If you did not pass your CDL written or road test the first time, share what mistakes you made, how you have corrected them, and what steps, if any, you have taken to ensure you do not make those mistakes again.