DOT medical card basics, how long it lasts, how to renew

A DOT medical card is Form MCSA-5876, the Medical Examiner's Certificate issued after a qualifying DOT physical. The exam is recorded on Form MCSA-5875, and the exam must be performed by a medical examiner listed on the FMCSA National Registry [2]. The card can last up to 24 months, but 2 years is only the ceiling. Blood pressure staging, insulin-treated diabetes, the alternative vision standard, and other conditions can shorten it [3][4]. With 6 weeks left, book the exam now and use the time to get your numbers and paperwork in order.

What exactly is a DOT medical card?

The DOT medical card is the wallet-sized certificate that shows the medical examiner found you qualified under the federal physical qualification standards. Those standards appear in 49 CFR 391.41, which lists 13 qualification areas covering conditions such as limb impairment, insulin-treated diabetes, cardiovascular disease, respiratory dysfunction, high blood pressure, epilepsy, vision, hearing, drug use, and alcoholism [1].

The card is not a general health score. It reflects the result of a hands-on federal medical exam and the examiner's decision about whether you meet the applicable standards at that visit. The examination report is Form MCSA-5875. If you qualify, the examiner issues Form MCSA-5876, which is the document drivers call the DOT medical card or med card [2].

The exam includes a health history review, blood pressure and pulse, vision, hearing, a urinalysis dipstick screening specific gravity, protein, blood, and glucose, and a hands-on exam of body systems [4]. A licensed ophthalmologist or optometrist may perform the vision portion of the exam, but the DOT examination still has to be completed through the required medical examiner process [2].

For the exam itself, use the DOT physical hub. It covers the broader process, while this guide focuses on the card in your wallet, its expiration date, and renewal.

How long can a DOT medical card last?

The maximum certification interval is 24 months, or 2 years [3]. That does not mean every driver receives a 2-year card. The examiner can certify for less when a condition needs monitoring, and the length within the rules is examiner clinical judgment [4].

That distinction matters when you read the expiration date. The date printed on your MCSA-5876 controls your current certification period. A driver with no finding that calls for closer monitoring may receive the full period available under the rules. Another driver may receive 1 year, 6 months, or a shorter period tied to a specific medical issue.

The federal standards also set fixed requirements for some drivers. A driver certified under the insulin-treated diabetes standard or the alternative vision standard must be examined and certified every 12 months [3]. Insulin-treated diabetes has its own process under 49 CFR 391.46, including the MCSA-5870 assessment from the treating clinician [5].

Your card length is not something to negotiate at the counter. The examiner reviews the exam, the history, the records, and the applicable standard. If the condition needs monitoring, a shorter card may be the medically appropriate result. Roadworthy does not perform exams or issue certificates. Verify the examiner before booking through the FMCSA National Registry search.

Why do some drivers get 1-year or shorter cards?

Blood pressure is one common reason. The regulation says a driver must not have a current clinical diagnosis of high blood pressure likely to interfere with safe CMV operation, but the regulation itself does not contain a numeric cutoff [1]. The numbers used for certification staging come from examiner guidance [4].

Under that guidance, below 140/90 can support certification for the full period, up to a 2-year card [4]. A reading of 140-159 systolic or 90-99 diastolic falls in Stage 1 and supports a 1-year card [4]. A reading of 160-179 systolic or 100-109 diastolic can lead to 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 [4].

Readings at or above 180 systolic or 110 diastolic place the driver in Stage 3. The driver is disqualified until blood pressure is brought under control. After control is shown, certification continues on 6-month cards [4]. Either number alone can place a driver in a stage.

Insulin-treated diabetes is another fixed path. With at least 3 months of electronic blood glucose self-monitoring records, the driver can be certified for up to 12 months. Without those records, the certificate can be up to 3 months while the record builds [5]. The MCSA-5870 must be completed and signed by the treating clinician, and the medical examiner must examine the driver at least annually and no later than 45 days after that signature [5].

What does the examiner check before renewing it?

The examiner checks the same federal qualification areas that apply to the initial card. The vision standard requires distant visual acuity of at least 20/40 in each eye, with or without corrective lenses, a horizontal field of vision of at least 70 degrees in each eye, and the ability to recognize red, green, and amber traffic signals [1].

The hearing standard can be met by perceiving a forced whispered voice in the better ear at not less than 5 feet, or by having 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].

The history review also matters. Cardiovascular disease, respiratory dysfunction, seizures or loss of consciousness, mental and psychiatric conditions, substance use, and alcoholism are all addressed in the physical qualification standards [1]. A driver who has lost a limb or has a limb impairment may still qualify with a Skill Performance Evaluation certificate under 49 CFR 391.49 [1].

There is no BMI number in 49 CFR 391.41, and the handbook sets no BMI trigger for extra testing [1][4]. The handbook also sets no sleep apnea screening requirement. Whether sleep testing is needed before certification is examiner clinical judgment under the respiratory standard [4].

If an injury or disease has impaired your ability to perform normal duties, you must be re-examined and certified even when your current card has not expired [3]. Do not wait for the printed date when your ability to work has changed.

What paperwork should you bring to a renewal?

Bring the records that explain the conditions the examiner will be reviewing. The exact packet depends on your medical history, and the examiner decides what is needed. A clean file helps the visit answer the real question instead of leaving gaps.

For blood pressure, bring your home cuff log and current medication list. The log does not replace the exam reading, but it gives the examiner a pattern to review when a reading is elevated at the visit. If your readings fall into a higher stage, get the issue addressed before exam day rather than waiting for a short certificate.

For insulin-treated diabetes, the key artifact is Form MCSA-5870. The treating clinician who manages and prescribes insulin completes and signs it. The medical examiner then examines you within the required timing, at least annually and no later than 45 days after the clinician signs the form [5]. Bring the electronic blood glucose self-monitoring records when they apply, because at least 3 months of records affects the certification period [5].

Bring corrective lenses and hearing aids if you use them. Bring relevant medical records when a recent condition, procedure, injury, or diagnosis could affect your qualification. The examiner may need documentation to apply the correct standard. The CDL medical card renewal requirements page covers the renewal paperwork and timing in more detail.

The cleanest approach is simple: identify what shortened your last card, gather the record tied to that issue, and bring it to the new exam.

Here is the working timeline for a card that expires in 6 weeks.

What happens if the card is shorter than 2 years?

A shorter card is still a valid medical certificate for the period printed on it, unless a later medical change requires re-examination. The expiration date is the date you need to work from. A 1-year card does not mean the examiner found you unqualified. It means the examiner applied a shorter monitoring period under the rules and clinical guidance [3][4].

A 3-month card for Stage 2 blood pressure is different from a routine 1-year card. It gives time for treatment to 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 under the staging guidance [4].

For Stage 3 blood pressure, the driver is disqualified until control is shown. After control, certification continues on 6-month cards [4]. That is a documented path back, not a reason to search for a different exam result.

Insulin-treated diabetes has a maximum 12-month certification interval. With the required MCSA-5870 process and at least 3 months of electronic blood glucose self-monitoring records, certification can be up to 12 months. Without those records, certification can be up to 3 months while the record builds [5].

The examiner cannot be replaced by a health program, a home reading, or a paperwork shortcut. Get healthier before recert because the card measures health. There is no honest way to game a hands-on federal exam, and no clinic can promise a card length.

What to do next

Written for a driver whose card expires in 6 weeks.

1. Find the expiration date printed on Form MCSA-5876 and put it on your dispatch and personal calendar.
2. Book the DOT exam now with a medical examiner verified through the FMCSA National Registry search.
3. Use the next 3 weeks to check blood pressure and keep a home cuff log, especially if your last card was shortened for blood pressure.
4. If insulin-treated diabetes applies, ask the treating clinician to complete and sign Form MCSA-5870, then track the 45-day exam window [5].
5. At 1 week before the exam, gather the MCSA-5870 if required, electronic blood glucose records, glasses, hearing aids, medication records, and prior paperwork.
6. Review the DOT medical certification process before exam day so you know which forms are completed at the visit.
7. Attend the exam with the records the examiner needs, and keep the new MCSA-5876 with your work documents if it is issued.

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. FMCSA Medical Examiner's Handbook, 2024 edition, blood pressure staging, certificate length, and exam guidance, accessed 2026-08-01, handbook-appendix
5. 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