Colorado CDL Requirements
Prepare for the Colorado CDL permit test, Colorado CDL skills test, DOT physical requirements, and official Colorado DMV CDL steps.
CDL Requirements
Basic Requirements
- Must be at least 18 years old (21 for interstate commerce)
- Hold a valid non-commercial license and bring the identity and residency documents Colorado DMV requires
- Complete self-certification and maintain a DOT medical certificate when your driving category requires one
- Pass the knowledge tests for your CDL class, brake system, and requested endorsements
Application Items to Confirm in Colorado
Use these as planning prompts, then verify the current documents and eligibility rules with Colorado DMV before your visit.
- Medical certificate
- Mountain driving training
Colorado CDL Permit Test Practice
The Colorado CDL permit test starts with the official Colorado Commercial Driver License Manual. Use it with practice questions for General Knowledge, Air Brakes, Combination Vehicles, and any endorsement you need.
Use the federal CDL practice sets first, then check the official Colorado DMV page for any state-specific testing steps.
What Colorado CDL Applicants Should Know in 2026
These points answer the permit, road-test, and physical-requirement questions drivers most often search for. Requirements can change, so use this summary to prepare and confirm your final application details with Colorado DMV.
- Start with the Colorado Commercial Driver License Manual and study the sections for your intended CDL class, brake system, and endorsements.
- First-time Class A or B applicants, Class B-to-A upgrades, and first-time H, P, or S endorsement applicants must complete applicable Entry-Level Driver Training.
- A CDL skills test normally covers vehicle inspection, basic controls, and on-road driving. Confirm the current permit wait, scheduling rules, and test-vehicle requirements with Colorado DMV.
Build Your Colorado CDL Study Plan
Do not study every handbook section equally. Match your practice to the vehicle you plan to drive and use this order to cover the tests that apply to you.
1. Core knowledge
Study General Knowledge first. Add Air Brakes if the vehicle uses them and Combination Vehicles for a Class A path.
2. Endorsements
Study separate sections for tanker, doubles/triples, passenger, school bus, or hazardous materials only when your job requires them.
3. Skills test
After the permit tests, rehearse the inspection, basic-control maneuvers, and on-road habits in a representative vehicle.
Colorado-Specific Regulations
Mountain driving requirements
Chain law compliance
High altitude operation guidelines
State rules and procedures change. Treat these as topics to review and use the official Colorado DMV resource for the final requirement.
Testing Process: Permit & Road Test
Study & Practice for Permit
Use our free practice tests to prepare for the general knowledge, air brakes, and combination vehicle exams.
Get DOT Physical
Determine your self-certification category and obtain a DOT medical certificate from a certified examiner when required.
Apply for CLP (Permit)
Apply for a Commercial Learner's Permit and pass the required knowledge tests through Colorado DMV.
CDL Road Test
Schedule and pass the pre-trip inspection, basic controls, and on-road driving test.
Colorado CDL Road Test & Physical Requirements
The Colorado CDL skills test normally checks vehicle inspection, basic control, and on-road driving. Practice the permit material first, then study pre-trip inspection and low-speed control so the skills test does not feel like a separate surprise.
Colorado applicants should confirm their driving category, self-certification, and any required DOT medical record with Colorado DMV.
Before scheduling, confirm current fees, medical certificate rules, CLP holding periods, and appointment steps with Colorado DMV.
Free Practice Tests
Official Resources
Need Help?
For current questions about CDL requirements in Colorado, contact Colorado DMV or your local driver licensing office.