A commercial driver's license medical card is a document that proves you passed a physical exam required by the Department of Transportation
If you drive a commercial vehicle for work — a truck, bus, or any vehicle that requires a CDL — the federal government requires you to carry a medical certificate, often called a medical card or medical examiner's certificate. This card shows that a certified medical examiner has evaluated your health and determined you are physically able to operate a commercial vehicle safely.
The card itself is small and wallet-sized. It lists your name, the date of your exam, the date the certificate expires, and any restrictions the examiner placed on your driving. You must carry it with you whenever you operate a commercial vehicle, and you must show it to law enforcement if asked during a traffic stop.
Without a valid medical card, you cannot legally drive a commercial vehicle, even if you hold a valid CDL. The card and your CDL are separate documents — one proves you know how to drive, the other proves you are medically fit to do so.
Key Takeaways
- A medical card is required by federal law if you drive any commercial vehicle, and you must carry it at all times while driving commercially.
- The exam takes place with a certified medical examiner listed in the National Registry, not your personal doctor, and covers vision, hearing, blood pressure, and other basic health markers.
- Medical cards expire every two years, and you must schedule a new exam before the expiration date or you will no longer be able to drive commercially.
- Certain medical conditions — uncontrolled diabetes, heart disease, sleep apnea, or vision problems — may result in restrictions or disqualification.
- You can find certified examiners through your state's Department of Motor Vehicles or by searching the National Registry of Certified Medical Examiners online.
What the medical exam covers
The exam is standardized across all states and takes about 30 to 45 minutes. A certified medical examiner will check your vision (you need at least 20/40 in each eye, corrected or uncorrected), hearing, blood pressure, and reflexes. They will also review your medical history, ask about any medications you take, and perform a basic physical exam including checking your heart and lungs.
The examiner is looking for conditions that could make you unsafe behind the wheel of a large vehicle. These include uncontrolled high blood pressure, heart disease, diabetes that is not well managed, sleep apnea, seizure disorders, and severe vision or hearing loss. If you have any of these conditions, the examiner may still issue a card but with restrictions — for example, you might be limited to driving only during daylight hours, or only within a certain distance of your home.
Bring your current medical information to the exam. If you take medications, bring a list or the bottles themselves. If you have had recent medical tests or see a specialist, bring those records. The more complete your medical history, the faster the exam will go.
How to find a certified medical examiner
Not every doctor can perform a commercial driver's license medical exam. The examiner must be listed in the National Registry of Certified Medical Examiners, which is maintained by the Federal Motor Carrier Safety Administration. You can search this registry online at fmcsa.dot.gov — it allows you to search by state, city, or zip code.
Your state's Department of Motor Vehicles also maintains a list of approved examiners. You can call your DMV or visit their website to request the list. Many examiners are primary care doctors, occupational health clinics, or urgent care centers that have completed the certification training.
Call ahead and ask if the examiner has openings. Some examiners book weeks in advance, especially in busy areas. Ask about the cost — the exam is not free, and prices vary by location and examiner, typically ranging from $75 to $150. Some insurance plans cover the exam, but many do not, so confirm the cost before you schedule.
What happens if you fail the exam
If the examiner finds a medical condition that disqualifies you, they will not issue a card. You will receive a notice explaining the reason. Common reasons for disqualification include uncontrolled diabetes, a heart condition that has not been evaluated by a cardiologist, or vision that cannot be corrected to the required standard.
In many cases, disqualification is temporary. If your condition is treatable — for example, if your blood pressure is too high but you start taking medication — you can schedule a follow-up exam once your condition is under control. Bring documentation from your doctor showing that the condition has improved. The examiner will re-evaluate you and may issue a card at that time.
If you believe the examiner made an error, you can request a second opinion from another certified examiner. There is no formal appeal process through the government, but a different examiner may reach a different conclusion based on your medical records or a new exam.
Renewing your medical card before it expires
Medical cards are valid for two years from the date of the exam. The expiration date is printed on the front of the card. You should schedule your renewal exam at least 30 days before the card expires, because the new card is not valid until the old one has expired — you cannot carry two cards at once.
If your card expires while you are driving, you are no longer legally permitted to operate a commercial vehicle. If you are stopped by law enforcement, you can be cited. If your employer discovers your card has expired, you may be suspended from driving commercially until you obtain a new one.
The renewal exam is the same as the initial exam. You will see a certified examiner, undergo the same health checks, and receive a new card if you pass. If your health has changed since your last exam — for example, if you have developed a new medical condition or started a new medication — tell the examiner, because this may affect the result.
Restrictions and what they mean
An examiner may issue a card with restrictions rather than disqualifying you outright. Common restrictions include "daylight driving only" (you cannot drive between sunset and sunrise), "within 100 miles of home" (limiting your range), or "corrective lenses required" (you must wear glasses or contacts). Some examiners restrict drivers with well-controlled diabetes or those taking certain medications.
Restrictions are printed on the back of your medical card. You must follow them exactly. If your card says daylight driving only and you drive at night, you are violating federal law. If you are in an accident while violating a restriction, your insurance may deny your claim, and you could face fines or loss of your CDL.
If you believe a restriction is too limiting, you can ask the examiner to reconsider. Bring updated medical records showing that your condition has improved or is well controlled. Some examiners will remove or modify restrictions if the evidence supports it. You can also seek a second opinion from another examiner.
What to bring to your exam
Bring a photo ID and your current CDL or a copy of your CDL process. Bring a list of all medications you take, including over-the-counter drugs and supplements, or bring the bottles themselves. If you have had recent medical tests — blood work, an EKG, or imaging — bring those results or a summary from your doctor.
If you have a medical condition such as diabetes, heart disease, or sleep apnea, bring documentation from your doctor showing how the condition is being managed. If you wear glasses or contacts, bring them to the exam. If you have had a seizure, stroke, or other serious medical event in the past, bring records from that event.
Wear comfortable clothing that allows the examiner to check your blood pressure and perform a basic physical. Avoid caffeine before the exam, as it can temporarily raise your blood pressure. Bring your insurance card if you have it, though the exam is typically paid out of pocket.
Frequently Asked Questions
Can my regular doctor perform the medical exam?
Only if your doctor is certified and listed in the National Registry of Certified Medical Examiners. Many primary care doctors have completed the certification, but you must confirm this before scheduling. Call your doctor's office and ask if they are a certified medical examiner for commercial drivers.
What if I have a medical condition like diabetes or high blood pressure?
You may still receive a card if the condition is well controlled with medication or lifestyle changes. Bring documentation from your doctor showing that your condition is stable. The examiner will review this information and decide whether to issue a card, issue a card with restrictions, or disqualify you.
How long does it take to get the card after the exam?
You typically receive the card when ready after passing the exam. The examiner will hand you the physical card before you leave. If the examiner needs to consult with a supervisor or review your records more carefully, they may mail the card to you within a few days.
Can I drive commercially while my medical card is being renewed?
No. You must have a valid, unexpired medical card to drive commercially. If your card expires, you cannot legally operate a commercial vehicle until you pass a new exam and receive a new card. Schedule your renewal at least 30 days before expiration to avoid a gap.
What if I move to a different state?
Your medical card is valid in all states. You do not need a new exam when you move. However, if you change your address, you should notify your state's DMV so your CDL records are updated. Your medical card itself does not need to be reissued.