AAMVA offers many different resources for Commercial Driver Licensing (CDL). The CDL Program is a nationwide effort to ensure that only qualified commercial drivers receive and maintain commercial driver's licenses (CDLs) and to remove unsafe and unqualified drivers from our highways. From our best practices, to tips on training, and information on different systems and services, AAMVA's CDL Portfolio works with you to make sure every driver - commercial or not - is safe on the roads.