DOT Medical Card (Medical Examiner's Certificate) Requirements
FMCSA · 49 CFR 391.41-49
Regulation at a glance
The DOT Medical Card (officially the Medical Examiner's Certificate or MEC, form MCSA-5876) certifies that a commercial driver is physically qualified to operate a commercial motor vehicle. The exam is conducted by a Certified Medical Examiner (CME) listed on FMCSA's National Registry. The medical card is generally valid for up to 24 months, but can be issued for shorter periods (3, 6, or 12 months) if the driver has conditions requiring monitoring. Without a current DOT medical card, drivers are not permitted to operate a CMV — even if their CDL is otherwise valid.
Overview
The DOT Medical Card (officially the Medical Examiner's Certificate or MEC, form MCSA-5876) certifies that a commercial driver is physically qualified to operate a commercial motor vehicle. The exam is conducted by a Certified Medical Examiner (CME) listed on FMCSA's National Registry. The medical card is generally valid for up to 24 months, but can be issued for shorter periods (3, 6, or 12 months) if the driver has conditions requiring monitoring. Without a current DOT medical card, drivers are not permitted to operate a CMV — even if their CDL is otherwise valid.
Who must comply
All interstate commercial drivers operating vehicles requiring a CDL OR vehicles 10,001+ lb GVWR (interstate). Many states also require intrastate drivers to hold a DOT medical card for vehicles 26,001+ lb GVWR. Drivers of 9+ passenger vehicles (including driver) and drivers of placarded hazmat vehicles also require the medical card regardless of vehicle weight.
Requirements in detail
Exceptions and exemptions
Drivers operating in intrastate-only commerce in states that don't require DOT medical for intrastate. Drivers of vehicles below CDL thresholds (under 10,001 lb GVWR). Federal military exemptions for active-duty military operating government vehicles.
Penalties for non-compliance
Operating CMV with expired medical card: out-of-service, citation ($1,300+). Operating without ever obtaining medical card when required: civil penalty up to $5,000 (driver) and $10,000+ (carrier). Falsifying medical information: criminal fraud charges possible. Failing to update CDL with valid medical certificate: CDL downgrade in most states.
Practical tips and compliance advice
(1) Schedule the medical exam BEFORE current card expires — out-of-service if you're expired even one day. (2) Take recent BP readings before the exam — many drivers fail due to anxiety-spike BP. Get your BP under control 2-3 weeks ahead. (3) Bring a complete list of medications and dosages — surprise medications during the exam reveal undisclosed conditions and can disqualify you. (4) Sleep apnea screening: BMI over 35 triggers a sleep study referral — this is the #1 reason for short-period certifications. Address sleep apnea diagnosis with CPAP for 2+ years and you'll requalify for 2-year certification. (5) Find your medical examiner on the FMCSA National Registry (nationalregistry.fmcsa.dot.gov) — exam costs $80-$150 depending on examiner. (6) Bring your CDL state's specific form — California (DL-51), Texas, and others have additional state-specific paperwork beyond the federal MCSA-5876.
Recent changes and updates
2014: National Registry of Certified Medical Examiners required — only listed CMEs can perform DOT exams. 2022: Sleep apnea screening guidelines updated — BMI, neck circumference, and Epworth Sleepiness Scale now standard. 2023: Diabetes Type 1 / insulin-dependent drivers can now qualify with FMCSA exemption (significant change — was previously disqualifying). 2024: Medical card data now electronically transferred to state DMVs in real-time — driver no longer needs to physically deliver the medical card to the DMV.
Related forms and documentation
MCSA-5876 (Medical Examiner's Certificate), MCSA-5875 (Medical Examination Report Form), state DMV-specific update forms