How to Obtain a CDL in Colorado

Obtaining a Commercial Driver’s License (CDL) in Colorado is essential if you plan to operate commercial motor vehicles (CMVs) such as semi-trucks, buses, or hazardous material carriers. The process involves several steps that ensure you are physically, mentally, and technically equipped to handle these vehicles safely and in compliance with federal and state laws.

CDL License Classes

Colorado issues three main classes of CDLs based on the type and weight of the vehicle:

• Class A: For combination vehicles with a gross combination weight rating (GCWR) of 26,001 lbs or more, provided the towed vehicle is over 10,000 lbs.
• Class B: For single vehicles with a GVWR of 26,001 lbs or more, or towing a vehicle under 10,000 lbs.
• Class C: For vehicles transporting 16 or more passengers or hazardous materials (HAZMAT).

Each class may also require CDL Endorsements and Restrictions depending on the vehicle type and cargo.

Step 1: Meet Basic Eligibility Requirements

To apply for a Colorado CDL, you must:

• Be at least 18 years old for intrastate driving or 21 years old for interstate or hazardous material transport.
• Hold a valid Colorado non-commercial driver’s license.
• Have a clean driving record.
• Pass a Department of Transportation (DOT) medical exam and obtain a Medical Examiner’s Certificate, as outlined in Medical Requirements for Colorado CDL Holders.

Step 2: Obtain a Commercial Learner’s Permit (CLP)

Before getting a CDL, you must first obtain a CLP:

1. Visit a Colorado DMV office and present proof of identity, residency, and lawful presence.
2. Submit a Medical Examiner’s Certificate.
3. Pass the written knowledge exams for:
   • General Knowledge
   • Air Brakes (if applicable)
   • Combination Vehicles (for Class A)
4. Pay the required CLP fees.
5. Hold the CLP for at least 14 days before taking the skills test.

For more information on eligibility, visit the Colorado Driver’s License Eligibility Guide.

Step 3: Enroll in CDL Training (Recommended)

While not mandatory, attending a CDL training school can significantly improve your chances of passing the skills test. Training programs typically cover:

• Vehicle inspections
• Basic control skills
• On-road driving
• Federal Motor Carrier Safety Regulations (FMCSR)

Entry-Level Driver Training (ELDT) is required for first-time applicants as of February 2022. Only FMCSA-approved training providers can certify ELDT completion.

Step 4: Schedule and Pass the CDL Skills Test

The skills test includes three components:

1. Pre-trip inspection
2. Basic vehicle control
3. On-road driving

You must schedule your skills test through a third-party tester or a state-certified CDL testing site. Be sure to bring your own vehicle for the class of license you're testing for.

For a broader understanding of CDL regulations in Colorado, see the Colorado Commercial Driver’s License (CDL) Overview.

Step 5: Receive Your CDL

After passing the skills test:

• Return to a Colorado DMV office with your test results and required identification.
• Pay the CDL issuance fee.
• You’ll be issued a temporary CDL until your permanent card arrives by mail.

Additional Tips and Resources

• If you're planning to drive specialized vehicles like school buses or tankers, you must pass additional endorsement tests.
• Keep your DOT medical certificate current to avoid disqualification.
• If your CDL is lost or stolen, refer to Replacing a Lost or Stolen Colorado License for guidance.

Always refer to the Colorado DMV Commercial Licensing page for the most up-to-date information.