A CDL medical card renewal is a fresh DOT physical, not an extension of the old card. Book with a medical examiner listed on the FMCSA National Registry, bring the records that match your conditions, and leave runway before the expiration date. The maximum certification interval is 24 months, but the examiner may issue a shorter certificate when a condition needs monitoring [3][5]. Start 8 weeks out. That gives a fleet driver time to handle blood pressure follow-up, insulin paperwork, or a second appointment without putting recert against dispatch.

What does a CDL medical card renewal actually require?

The renewal starts with a new examination by a medical examiner listed on the FMCSA National Registry [2]. The examiner reviews your health history, checks blood pressure and pulse, performs vision and hearing checks, reviews a urinalysis dipstick, and examines body systems [5]. The visit is a current assessment of whether you meet the physical qualification standards. Your last card helps show history, but it does not replace the new exam.

The exam is recorded on Medical Examination Report Form MCSA-5875. If you qualify, the examiner issues Medical Examiner's Certificate Form MCSA-5876, the wallet card drivers call the DOT medical card or med card [2]. That is the document you give your carrier or keep with your qualification records.

The federal standards cover 13 areas, including limbs, insulin-treated diabetes, cardiovascular disease, respiratory dysfunction, high blood pressure, musculoskeletal disease, epilepsy and loss of consciousness, mental and psychiatric conditions, vision, hearing, drug use, and alcoholism [1]. A renewal is your chance to bring current information for any of those areas that applies to you.

Before you book, use the FMCSA National Registry search to verify the examiner. Roadworthy does not perform DOT physicals, employ or certify medical examiners, or issue medical certificates. It supports the health work between exams. The DOT medical card guide covers the document itself, while the DOT physical hub collects the broader recert material.

When should a fleet driver start the renewal process?

Start 8 weeks before the card expires. That is not a federal examination interval. It is a working calendar habit for a driver who needs room for a high reading, missing records, or a form that has to come from a treating clinician.

At 8 weeks, write down the exact expiration date and check whether the card is a 24-month card, a 1-year card, or a shorter certificate. Federal rules set 24 months as the maximum interval when a driver is not examined and certified during the preceding 24 months [3]. That maximum is not an entitlement. The examiner's certification length is clinical judgment when a condition needs monitoring [5].

At 6 weeks, verify the examiner's registry listing and book the appointment. At 5 weeks, gather the prior MCSA-5876, medication list, glasses or contacts information, hearing aids if used, and records for conditions that affect the exam. At 3 weeks, review your home blood pressure log and make sure an insulin-treated diabetes form is moving through the right office. At 2 weeks, confirm the appointment and check that the records are complete.

The point is simple. A renewal date is not the day you start looking for an appointment. A driver with a card expiring in 8 weeks still has time to find a gap and act on it. A driver who waits until exam week may have less room if the examiner needs follow-up.

How long will the renewed medical card last?

The answer depends on the standard that applies and the examiner's judgment. A driver can receive up to a 24-month certificate when the examiner finds the driver qualified and no shorter interval is needed [3][5]. A shorter card does not automatically mean the driver failed. It can mean the examiner wants the condition checked sooner.

Blood pressure is one reason the renewal rhythm changes. Under examiner guidance, below 140/90 can support certification for the full period, up to a 2-year card [5]. The next stages are written as follows.

  • 140-159 systolic or 90-99 diastolic supports a 1-year certificate [5].
  • 160-179 systolic or 100-109 diastolic supports a one-time 3-month certificate so treatment can start or be adjusted. Once blood pressure is at or below 140/90, the driver can be certified for 1 year from the original exam date [5].
  • At or above 180 systolic or 110 diastolic, the driver is disqualified until blood pressure is brought under control. After control is shown, certification continues on 6-month cards [5].

Either number alone can place you in a stage. The regulation itself has no numeric blood pressure cutoff. It says there must be no current clinical diagnosis of high blood pressure likely to interfere with safe CMV operation, while the numbers come from examiner guidance [1][5].

If you have insulin-treated diabetes or use the alternative vision standard, you must be examined and certified every 12 months [3]. These intervals are different from the 24-month ceiling. The examiner cannot turn that 12-month requirement into a 2-year cycle.

What paperwork does an insulin-treated driver need?

An insulin-treated driver needs the Insulin-Treated Diabetes Mellitus Assessment Form MCSA-5870 from the treating clinician who manages and prescribes insulin for the driver's diabetes [4]. The medical examiner then examines the driver at least annually and no later than 45 days after the treating clinician signs the form [4].

For a card expiring in 8 weeks, do not wait until the appointment is close to request the MCSA-5870. Ask the treating clinician's office to complete and sign it early enough for you to review the dates and bring the form to the medical examiner. The form supports the examination. It does not replace the examination.

The records requirement can affect the certificate length. With at least 3 months of electronic blood glucose self-monitoring records, an insulin-treated driver can be certified for up to 12 months. Without those records, the driver can receive a certificate of up to 3 months while the record builds [4]. The diabetes standard replaced the old federal exemption process with the MCSA-5870 assessment and regular exam, effective November 19, 2018 [4].

The qualification standards contain no A1C number [1]. That means you should not build your renewal plan around an invented A1C cutoff. Bring the documentation the standard calls for, including the MCSA-5870 when it applies, and let the medical examiner make the qualification decision.

What should you bring to the renewal exam?

Bring documents that let the examiner assess your current condition instead of reconstructing it from memory. Start with the current MCSA-5876 and prior exam paperwork. Add your medication list, home blood pressure log, glasses or contacts information, hearing aids if you use them, and condition-specific records.

For vision, the standard requires distant visual acuity of at least 20/40 in each eye, with or without corrective lenses, a field of vision of at least 70 degrees in the horizontal meridian in each eye, and the ability to recognize red, green, and amber traffic signals [1]. A licensed ophthalmologist or optometrist may perform the vision portion of the DOT exam [2].

For hearing, the standard can be met by first perceiving a forced whispered voice in the better ear at not less than 5 feet, or by having an average hearing loss in the better ear of 40 decibels or less at 500 Hz, 1,000 Hz, and 2,000 Hz. A hearing aid may be used to meet the standard [1].

If you have a limb loss or limb impairment, an SPE certificate can be part of the qualification path under 49 CFR 391.49 [1]. If a physical or mental injury or disease has impaired your ability to perform normal duties, you must be re-examined and certified even when the current certificate has not expired [3].

Sleep apnea deserves a precise answer. The handbook sets no sleep apnea screening requirement and no BMI trigger. Whether sleep testing is needed before certification is examiner judgment under the respiratory standard [5]. If the examiner asks for additional information, the failed DOT physical guide explains how to handle the result without guessing at a shortcut.

Use this renewal timeline as a screenshot for a card that expires in 8 weeks.

Time before expiration Renewal action
8 weeks Write down the expiration date, review the current MCSA-5876, and start the renewal file
6 weeks Verify the medical examiner on the FMCSA National Registry and book the exam [6]
5 weeks Gather the prior card, medication list, vision items, hearing items, and condition records
3 weeks Review the home blood pressure log and confirm the MCSA-5870 path if insulin-treated diabetes applies [4]
2 weeks Confirm the appointment and check that required forms and records are complete
1 week Put the paperwork, glasses, hearing aids, and home blood pressure log in the truck folder
Exam day Complete the fresh DOT physical, MCSA-5875, and MCSA-5876 process [2]

What to do next

  1. Check the exact expiration date on your current MCSA-5876.
  2. At 8 weeks out, open a renewal folder with the current card and prior MCSA-5875.
  3. Search the examiner on the FMCSA National Registry before booking [6].
  4. Book the fresh DOT physical before the old card lapses.
  5. Start a home blood pressure log and bring it to the exam.
  6. If you use insulin, request the signed MCSA-5870 from the treating clinician and track the 45-day exam window [4].
  7. Bring glasses, hearing aids, the medication list, and condition records to the examiner.
  8. Give the new MCSA-5876 to your carrier after the examination if you qualify [2].

Sources

  1. Cornell Law School LII, 49 CFR 391.41, physical qualification standards, accessed 2026-08-01, https://www.law.cornell.edu/cfr/text/49/391.41
  2. Cornell Law School LII, 49 CFR 391.43, who performs the exam and the forms, accessed 2026-08-01, https://www.law.cornell.edu/cfr/text/49/391.43
  3. Cornell Law School LII, 49 CFR 391.45, who must be examined and when, accessed 2026-08-01, https://www.law.cornell.edu/cfr/text/49/391.45
  4. Cornell Law School LII, 49 CFR 391.46, insulin-treated diabetes standard, accessed 2026-08-01, https://www.law.cornell.edu/cfr/text/49/391.46
  5. FMCSA Medical Examiner's Handbook, 2024 edition, certification intervals, blood pressure staging, exam components, and examiner judgment, accessed 2026-08-01, handbook-appendix
  6. FMCSA National Registry of Certified Medical Examiners, examiner verification search, accessed 2026-08-01, https://nationalregistry.fmcsa.dot.gov/