First-time CDL Driver | Department of Revenue

New changes are coming for first-time CDL applicants, find more info here

CDL Initial Application Information

You must hold a valid regular driver license and be at least 18 years old before applying for a CDL
You will need to visit a driver license office and successfully pass the written tests that apply to the commercial license you desire. The Commercial Driver Handbook is under Driver Education.
Once you have successfully passed the required exams, purchase a CDL permit for the applicable fee.
If you'd like to take the written CDL test in Spanish, please let the DMV technician helping you know so they may set the test's language.

Class A - minimum exams required are

General knowledge
Combination
Air brakes (required if driving a vehicle with air brakes)

Class B - minimum exams required are

General knowledge
Air brakes (required if driving a vehicle with air brakes)

Class C - minimum exams required are

General knowledge
Passenger (required if carrying 16 passengers or more including driver)
Hazardous materials (required if transporting hazardous materials)

You will be required to

Show current DOT medical card. Find a FMCSA Certified Medical Examiner in your area
Proof of current physical Colorado address documents
Proof of your Social Security number
Schedule a drive skills test with an approved driving school
Return to driver license office with your drive skills test completion form and purchase a CDL for the applicable fee.

Other Information

Learn about endorsements and the requirements to obtain endorsements

Get information about CDL restrictions

For additional information, call 303-205-5600 or email DOR_cdlunit@state.co.us

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