Renewing a DOT medical card means a new DOT physical with a certified medical examiner before the expiration date on your current certificate. A certificate is valid for up to 24 months, or for a shorter term, such as 12, 6 or 3 months, when a condition needs monitoring. Once it lapses, you can’t drive in a role that requires certification, so book ahead of the date.
What happens in the weeks around your expiration date?
- Weeks before. Find the expiration date printed on your certificate. FMCSA suggests CDL holders get their exam well in advance of it, to leave time to fix any error in how the result reaches their state driving record. Ask now for anything the exam will need: Form MCSA-5870 from the clinician who treats insulin-treated diabetes, a recent CPAP compliance report for sleep apnea, or specialist notes for other ongoing care. A missing note can hold up your certificate until it arrives.
- The day before. Take your medications as usual and don’t skip a dose to change a reading. Drink water normally, keep meals ordinary rather than salty, and pass on energy drinks.
- Exam day. You complete the health history on Form MCSA-5875 and go over it with Dr. Gurj Kalay, DC, a Certified Medical Examiner, including anything diagnosed or changed since your last exam. The checks themselves are listed on our DOT physicals page.
- By the next day. The examiner must send your results electronically to FMCSA by midnight, local time, of the next calendar day, under 49 CFR 391.43. For CDL holders, the National Registry passes the certification to the state, and the California DMV says it posts results to your driving record within one business day.
- If the examiner needs more information. The decision can be held as pending while a record arrives or a further check is done. Under 49 CFR 391.43, you then have 45 days to provide it, and the pending status is reported to FMCSA.
- If you get a shorter term. A 12-, 6- or 3-month certificate means the next renewal comes sooner, so the date on the new card is the one to plan around.
What’s different about a renewal from your first exam?
The qualification rules are the same ones. 49 CFR 391.41 defines a single set of physical qualification standards, met by passing the exam described in 391.43, and it doesn’t set a separate standard for renewals. A driver who hasn’t been examined and certified in the preceding 24 months must be examined again, under 49 CFR 391.45.
What changes is what you bring. Your most recent Medical Examiner’s Certificate shows the examiner where you left off, and a list of every diagnosis and medication change since that exam saves a second trip. The rest of the checklist is on our DOT physicals page.
What happens if your card lapses before you renew?
You can’t drive in a role that requires certification until you have a new one. 49 CFR 391.41 bars anyone it covers from operating a commercial motor vehicle unless they are medically certified as physically qualified. FMCSA’s answer on restoring CDL privileges is to get a new certificate, and it warns that your state may require retesting and additional fees.
A lapse can also happen on paper. FMCSA’s National Registry FAQ says that if you were told you are qualified and later receive a CDL downgrade letter, your certification most likely never reached the state. Booking well ahead of the date leaves time to sort that out.
How early can I renew my DOT medical card?
FMCSA’s guidance for CDL holders is to get the exam and certificate well in advance of the current one’s expiration, though it isn’t required. The reason it gives is time to troubleshoot any error in posting the result to your driving record. The new exam sets the new certificate’s term, up to 24 months.
Do some drivers have to renew every year?
Yes. Under 49 CFR 391.45, drivers with insulin-treated diabetes, and drivers who hold a vision exemption, must be re-examined if their last certification was more than 12 months ago. An examiner can also issue a certificate for less than 24 months to monitor a condition such as high blood pressure.
Do I still have to carry my medical card?
Not if you hold a CDL. Since June 23, 2025, 49 CFR 391.41 says a CDL or CLP holder with a current medical certificate no longer needs to carry it. The certification now goes to the state electronically, and FMCSA’s National Registry FAQ still encourages you to ask for a copy for your records. Drivers without a CDL are still issued the paper certificate.
Do I need to send my new medical certificate to the California DMV myself?
For interstate drivers, no: since July 27, 2026, the California DMV takes medical results only electronically from the National Registry, and drivers can’t submit their own. Intrastate drivers can still submit forms MCSA-5875 and MCSA-5876 online, by mail or in person, but an exam by an examiner on the National Registry is sent to the DMV electronically.
Dr. Kalay does DOT physicals at our Yuba City office. Book your renewal ahead of the date on your certificate, and bring the checklist from our DOT physicals page. The office also does sports physicals for students and athletes.
Sources
- 49 CFR 391.41, “Physical qualifications for drivers.” Electronic Code of Federal Regulations. ecfr.gov
- 49 CFR 391.43, “Medical examination; certificate of physical examination.” Electronic Code of Federal Regulations. ecfr.gov
- 49 CFR 391.45, “Persons who must be medically examined and certified.” Electronic Code of Federal Regulations. ecfr.gov
- “DOT Medical Exam and Commercial Motor Vehicle Certification.” Federal Motor Carrier Safety Administration. fmcsa.dot.gov
- “National Registry II: Frequently Asked Questions for Drivers.” FMCSA National Registry, May 2025. nationalregistry.fmcsa.dot.gov
- “How can I get back my commercial driver’s license (CDL) privileges?” FMCSA Frequently Asked Questions. fmcsa.dot.gov
- “Commercial Driver’s Licenses.” California Department of Motor Vehicles. dmv.ca.gov
