The Purpose of DOT Physicals Explained

The standard DOT medical certificate is valid for 24 months. Drivers with certain managed health conditions may receive certificates valid for 12 months, 3 months or other shorter intervals determined by the medical examiner. Drivers must renew before expiry, an expired certificate causes the CDL to automatically downgrade to a non-commercial licence until a new certificate is issued.

No. The urinalysis collected during the physical screens for glucose, protein, blood and specific gravity, health indicators related to diabetes and kidney function, not controlled substances. DOT drug and alcohol testing is a completely separate federal requirement governed by 49 CFR Part 382 and 49 CFR Part 40. Both are required for CDL compliance but are conducted separately.

Only medical examiners listed on the FMCSA National Registry of Certified Medical Examiners are authorized to perform DOT physicals. The National Registry includes physicians, doctors of osteopathy, physician assistants, advanced practice nurses and chiropractors who have completed the required FMCSA training and passed the certification exam. You can search for a certified examiner through the FMCSA National Registry.

If a driver does not meet FMCSA medical standards, the examiner will not issue a Medical Examiner’s Certificate, or may issue a conditional or deferred certification pending additional documentation or treatment. The driver cannot legally operate a commercial vehicle without a current certificate. For some conditions, FMCSA exemption programmes exist that allow drivers to continue operating with additional monitoring requirements.

It depends on the type and management of the diabetes. Non-insulin-treated diabetes that is well controlled may not prevent certification, though the examiner may issue a shorter certification period with monitoring requirements. Insulin-treated diabetes previously resulted in automatic disqualification, but FMCSA now has an insulin exemption programme that allows some drivers using insulin to qualify. Drivers using insulin must apply for and receive an exemption.

No. DOT physical exams must be performed by a certified medical examiner on the FMCSA National Registry. What we do provide is the DOT drug and alcohol testing required alongside the physical for full CDL compliance. We handle all six required test types following 49 CFR Part 40 procedures with SAMHSA-certified lab analysis and MRO review.

DOT physical costs vary by provider, typically ranging from $75 to $200 depending on the clinic, location and whether additional testing is required. For pricing on the physical itself, contact FMCSA-certified medical examiner clinics in the Kansas City area directly. For DOT drug and alcohol testing, which we provide, cost is $60–$99 based on services needed.