What if you want to cross The Centennial State in a vehicle loaded with beef? Well, our practice tests cover all exams and endorsements. In the past, we've helped people with; •Tank vehicles •Hazardous materials •School buses •Passenger buses •Doubles/triples •Air brake restriction removal skills Compared to other states, Colorado's CDL fees are extremely generous at $15.50. Once you have your license, you'll be climbing the Rockies in no time and it all starts with our fantastic resources.