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New to Colorado
CDL DOT Medical
What is a DOT medical exam
It is an exam that indicates an individual is physically qualified to operate a commercial motor vehicle in accordance with 49 CFR 391.41, Subpart E - Physical Qualifications and Examinations.
Where can I get a DOT medical exam
to find a FMCSA Certified Medical Examiner in your area.
What happens if my exam expires
You are no longer medically qualified to operate a commercial vehicle and your CDL is subject to cancellation. You must keep your DOT medical up-to-date (new exam every 2 years). If you do not have a current DOT medical, you will be required to downgrade your CDL to a regular license.
Where/how do I submit my DOT medical information
You may bring it to any driver license office or
You may fax it to 303-205-5709 or
You may scan and e-mail to
You may mail it to:
Colorado Department of Revenue
Attn: CDL Unit
PO Box 173350
Denver CO 80217-3350
Medical conditions that may disqualify me from holding a CDL:
Diabetes requiring insulin
Drug use, including marijuana
Many medical conditions, on a case-by-case basis, may disqualify you from holding a CDL. Some common issues are listed above, however each individual needs to check with their medical provider for a final decision.
For additional information, call 303-205-5694 or email