A DOT physical is the federal medical exam required for drivers who operate interstate commercial motor vehicles, or CMVs. It checks whether your health meets the physical qualification standards in 49 CFR 391.41 [1]. A medical examiner listed on the FMCSA National Registry performs the exam and records it on MCSA-5875. If you qualify, the examiner issues MCSA-5876, the wallet card drivers call a DOT medical card or med card [2]. It is not a drug test, a regular checkup, or a treatment visit.
Who has to take a DOT physical?
The exam is for interstate CMV drivers who need to meet the federal medical qualification standards. If you are entering CDL school for interstate work, this is the exam you are asking about. The standard is not based on whether you personally call the vehicle a truck. It is tied to commercial motor vehicle operation and the federal requirements that apply to the driving job [1].
The federal rule lists 13 qualification standards in 49 CFR 391.41(b). They cover loss of a limb, limb impairment, insulin-treated diabetes, cardiovascular disease, respiratory dysfunction, high blood pressure, musculoskeletal and related disease, epilepsy or loss of consciousness, mental and psychiatric conditions, vision, hearing, drug use, and alcoholism [1].
That list does not mean a diagnosis automatically ends your driving plans. Some conditions need records, current findings, or a separate qualification path. A driver with a lost limb or limb impairment can still qualify with a Skill Performance Evaluation certificate under 49 CFR 391.49 [1]. Diabetes treated with insulin follows the requirements in 49 CFR 391.46 [1][6].
The starting point is simple. Tell the clinic you need a DOT medical examination for interstate CMV driving, then verify that the examiner is on the National Registry before you book.
What happens during the exam?
The visit starts with your health history. The medical examiner reviews the conditions and information that could affect your ability to operate a CMV safely. The visit includes blood pressure and pulse, a vision check, a hearing check, a urinalysis dipstick screening specific gravity, protein, blood, and glucose, plus a hands-on exam of body systems [4].
The exam is not designed to give you a full primary-care workup. It measures and reviews the areas tied to the federal driving standards. If the examiner sees an issue that needs more information, the examiner may ask for records or additional documentation. That is examiner judgment, not a promise of a particular result or certificate length.
The physical qualification standards include specific vision and hearing requirements. For vision, you need 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].
For hearing, you must first perceive a forced whispered voice in the better ear at not less than 5 feet, or have 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].
What does a DOT physical check?
This table puts the main exam checks beside the federal standard that covers them. The 13 standards include more than the measurements shown here, so the examiner also reviews your history and examines your body systems [1][4].
| What the exam checks | Which federal standard covers it |
|---|---|
| Vision, including corrected distance vision, field of vision, and traffic-signal colors | 49 CFR 391.41(b)(10), at least 20/40 in each eye, at least 70 degrees in each eye, and recognition of red, green, and amber [1] |
| Hearing | 49 CFR 391.41(b)(11), forced whispered voice at not less than 5 feet in the better ear, or average hearing loss of 40 decibels or less at 500 Hz, 1,000 Hz, and 2,000 Hz [1] |
| Blood pressure and pulse | 49 CFR 391.41(b)(6), no current clinical diagnosis of high blood pressure likely to interfere with safe CMV operation. The regulation has no numeric cutoff [1] |
| Insulin-treated diabetes | 49 CFR 391.41(b)(3) and 49 CFR 391.46, including the treating clinician's MCSA-5870 assessment [1][6] |
| Cardiovascular disease | 49 CFR 391.41(b)(4), including conditions known to be accompanied by syncope, dyspnea, collapse, or congestive cardiac failure [1] |
| Respiratory dysfunction | 49 CFR 391.41(b)(5), when the condition is likely to interfere with safely controlling and driving a CMV [1] |
| Seizures or loss of consciousness | 49 CFR 391.41(b)(8), no established history or diagnosis likely to cause loss of consciousness or loss of ability to control a CMV [1] |
| Limbs and musculoskeletal function | 49 CFR 391.41(b)(1), (b)(2), and (b)(7), covering limb loss, impairment, and listed musculoskeletal or related disease [1] |
| Drug use and alcoholism | 49 CFR 391.41(b)(12) and (b)(13), covering Schedule I or other habit-forming drug use and current clinical diagnosis of alcoholism [1] |
The blood pressure rule deserves a careful distinction. The regulation itself does not state a number [1]. Examiners use guidance for staging. Below 140/90 can support certification for the full period, up to a 2-year card. A reading of 140-159 systolic or 90-99 diastolic corresponds to a 1-year card. 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. Readings at or above 180 systolic or 110 diastolic disqualify a driver until blood pressure is brought under control [4].
Is a DOT physical the same as a regular physical?
No. A regular physical is usually a general health visit with your own clinician. A DOT physical is a medical qualification exam tied to federal CMV driving standards. The medical examiner decides whether the information supports qualification under those standards. The visit is not a substitute for primary care, and it does not diagnose or treat your conditions.
It is also not a drug test. The federal standards include drug use and alcoholism, but the physical itself is the exam process described in the Medical Examiner's Handbook, including history review, blood pressure and pulse, vision, hearing, urinalysis screening, and a hands-on exam [1][4]. If an employer requires a separate drug test, that is a separate requirement.
Sleep apnea is another area where new drivers often hear conflicting advice. The 2024 Medical Examiner's Handbook sets no sleep apnea screening requirement and no BMI trigger. Whether an examiner requires sleep testing before certification is examiner judgment under the respiratory standard [4]. FMCSA and FRA withdrew the sleep apnea rulemaking in 2017, and no FMCSA regulation names sleep apnea [4].
Weight itself is not a federal pass or fail number. There is no BMI number anywhere in the driver physical qualification standards of 49 CFR 391.41 [1]. A condition connected with weight can still matter if it affects a standard, such as blood pressure or respiratory function.
What are MCSA-5875 and MCSA-5876?
MCSA-5875 is the Medical Examination Report Form. It records the DOT physical, including the health history, exam findings, and medical examiner's decision [2]. You may hear clinic staff refer to it as the long form.
MCSA-5876 is the Medical Examiner's Certificate. It is the certificate a qualified driver receives, and it is the wallet card drivers call the DOT medical card or med card [2]. The 2 forms serve different purposes. One records the examination. The other documents the certification decision.
The medical examiner must be listed on the FMCSA National Registry of Certified Medical Examiners [2]. You can check the examiner or clinic through the official National Registry search before booking [5]. A licensed ophthalmologist or optometrist may perform the vision portion of the DOT exam, but the complete DOT examination still runs through a listed medical examiner [2].
Your certificate can be shorter than the maximum. Federal rules require examination and certification at least every 24 months when the driver has not been examined and certified during the preceding 24 months [3]. That 24-month period is a maximum, not an automatic card length. The examiner can certify for less when a condition needs monitoring, and the length within the rules is examiner clinical judgment [3][4].
Drivers certified under the insulin-treated diabetes standard or the alternative vision standard must be examined and certified every 12 months [3]. If an injury or disease impairs your ability to perform normal duties, you must be re-examined and certified even if your current certificate has not expired [3].
What does the med card mean for getting hired?
The med card documents the medical examiner's certification. For a new CDL student, it is the document that shows the medical qualification part of the process has been completed. It does not itself create employment, assign you to a carrier, or state how long a carrier will keep you in a job.
That distinction matters when you are comparing training programs or talking with a recruiter. A clinic can perform the exam and issue MCSA-5876 when the examiner certifies you. Roadworthy does not perform DOT physicals, employ or certify medical examiners, or issue medical certificates. It is the care between exams, so verify the examiner through the National Registry and use the DOT physical hub for the broader preparation library.
A med card also is not a way to bypass a health standard. There is no shortcut around a hands-on federal exam. If a condition does not meet a standard, the documented path back depends on that condition. That may involve records from the clinician who treats it, the MCSA-5870 process for insulin-treated diabetes, or an SPE certificate for a qualifying limb issue [1][6]. The examiner makes the certification decision.
For a first exam, bring an accurate medication and condition list, glasses or contact lenses if you use them, hearing aids if you use them, and any records the examiner has asked for. Honest, complete information gives the examiner a usable file.
What to do next
Written for a brand new driver booking a first exam in 3 weeks.
- Confirm with the school or carrier that you need an interstate CMV DOT physical.
- Search the examiner's name on the FMCSA National Registry before you book [5].
- Book the exam for this week or next week, leaving time before your CDL training date.
- Complete your health history with current conditions, prescriptions, prior surgeries, and any seizure, heart, breathing, vision, or hearing history.
- Pack your current glasses, contact-lens information, hearing aids, and the clinician records tied to any condition the examiner needs to review.
- If you use insulin, ask the treating clinician to complete and sign MCSA-5870, then schedule the medical examiner visit within 45 days of that signature [6].
- Ask the clinic whether you will receive MCSA-5876 after certification and keep the card with your CDL paperwork.
- Read the examiner's certification period before you leave, because a 2-year maximum is not the same as an automatic 2-year card [3][4].
- Save MCSA-5875 and MCSA-5876 with your CDL school documents, then check the DOT medical card guide and DOT physical appointment guide for the next paperwork step.
Sources
- 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
- 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
- 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
- FMCSA Medical Examiner's Handbook, 2024 edition, exam components, blood pressure guidance, and sleep apnea guidance, accessed 2026-08-01, handbook-appendix
- FMCSA National Registry of Certified Medical Examiners, examiner search, accessed 2026-08-01, https://nationalregistry.fmcsa.dot.gov/
- 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