Jobs that provide CDL training include a variety of positions where you may be asked to drive trucks, buses, or similar large vehicles. In these roles, you may receive additional on-the-job training to operate trailers, get experience with different sizes and weights of vehicles, or learn how to drive large, multi-axle vehicles. Most jobs that provide CDL training focus on short-distance or long-distance transportation, though some may require you to sign a contract for a minimum term of employment after you get your CDL. Depending on the company, you may or may not do other work while preparing to get your commercial driver's license.