Colorado CDL Resources

Official resources to check first

Colorado CDL requirements are managed by DMV (dmv.colorado.gov). Verify current requirements at dmv.colorado.gov.

No direct CDL handbook link is listed for Colorado yet. Visit the Colorado Department of Revenue — Division of Motor Vehicles website and look for a "CDL Manual," "Commercial Driver Handbook," or similar link.

Before you apply or renew

These steps apply regardless of state. Verify each requirement directly with the Colorado Department of Revenue — Division of Motor Vehicles before beginning the application process.

• Verify your CDL class (A, B, or C) matches the vehicles you intend to operate.
• Check whether you need endorsements (HazMat, Tanker, Passenger, School Bus, Doubles/Triples) and confirm state testing requirements for each.
• Confirm you hold a valid DOT medical certificate (MCSA-5876) and that it is current before applying or renewing.
• If you are a new CDL applicant, confirm whether ELDT (Entry-Level Driver Training) applies to your situation — see the ELDT overview.
• Gather required documents — identity, residency, and any existing license — before visiting a testing location.
• Confirm current fees and testing appointment availability directly with the Colorado Department of Revenue — Division of Motor Vehicles.

Medical certificate

CDL holders operating in interstate commerce must carry a current DOT medical certificate issued by a certified medical examiner on the FMCSA National Registry. Colorado state requirements for submitting or updating medical certification vary — check the Colorado Department of Revenue — Division of Motor Vehicles website for the current procedure.

For Colorado-specific medical certificate submission procedures, start at the Colorado Department of Revenue — Division of Motor Vehicles website .

• Learn about medical card requirements: DOT Medical Card Explained
• Track expiration dates: Medical Card Expiration Tracker

ELDT — Entry-Level Driver Training

Federal ELDT requirements apply to new Class A and Class B CDL applicants and to certain endorsements. Training must be completed at a provider listed on the FMCSA Training Provider Registry (TPR). The Colorado Department of Revenue — Division of Motor Vehicles does not administer ELDT — training is completed at a registered provider before you schedule the skills test.

• Find an ELDT provider: FMCSA Training Provider Registry
• See who needs ELDT: Who Needs ELDT?
• ELDT for small fleets and owner-operators: ELDT for Small Fleets

Federal references

• FMCSA — CDL Overview
• 49 CFR Part 383 — CDL Standards
• FMCSA — Medical Qualifications
• What Is a CDL? — Federal Standards Overview