Miller-Motte Colleges CDL : Class A Tractor Trailer program helps prepare you for the chance to pursue a career as a tractor-trailer or heavy haul driver. This program allows you to pursue a CDL : Class A Tractor Trailer certificate in a flexible environment that combines in-classroom instruction with hands-on experience. Enrollment is on a rolling basis with classes beginning every 5 weeks, and you can be finished with your CDL : Class A Tractor...