DOT Medical Card Requirements 2026: What Every CDL Driver Must Meet
Quick Answer
The DOT medical card requirements are the 13 physical qualification standards set out in 49 CFR 391.41(b)(1)–(b)(13). A driver must meet every applicable standard before a certified medical examiner can issue a Medical Examiner's Certificate.
49 CFR 391.41 sets 13 physical qualification categories a driver must meet before a certified examiner can issue a medical certificate. This is the definitive reference for every standard — vision, hearing, blood pressure, diabetes, cardiovascular, mental health, and what carriers must track to stay compliant.
49 CFR 391.41
Governing regulation
13
Physical qualification standards
NRCME
Required examiner registry
$16,550
Max per-violation penalty
In This Guide
What Is the DOT Medical Card (and Who Issues It)
The DOT medical card — formally called the Medical Examiner's Certificate (MEC) — is the federal document confirming that a commercial motor vehicle driver meets the physical qualification standards established under 49 CFR Part 391, Subpart E. It is required before a driver can legally operate a commercial motor vehicle in interstate commerce and must remain valid continuously throughout a driver's employment.
Since May 21, 2014, only FMCSA National Registry of Certified Medical Examiners (NRCME)-listed providers may perform DOT physicals and issue Medical Examiner's Certificates. This replaced the prior system where any licensed physician could certify a driver. The NRCME includes MDs, DOs, physician assistants, advanced practice registered nurses, and chiropractors who have completed FMCSA-approved training and testing. The authority is codified in 49 CFR 391.43.
The Two-Part System
DOT medical certification operates on two levels simultaneously. The driver must carry the current Medical Examiner's Certificate in their possession whenever operating a CMV. The carrier must maintain a copy in the Driver Qualification File under 49 CFR 391.51, verify the certificate is from an NRCME-listed examiner, and track all expiration dates across their entire driver pool. Both obligations apply independently — a carrier cannot satisfy its obligation by relying on the driver to self-report.
The medical examination is conducted on Form MCSA-5875 (Medical Examination Report for Commercial Driver Fitness Determination). After the exam, the examiner completes and transmits the Medical Examiner's Certificate (Form MCSA-5876) electronically to the FMCSA National Registry within 24 hours per 49 CFR 391.43(g). This electronic transmission is what links the certificate to the driver's CDL record through state DMV systems.
For a step-by-step walkthrough of how to schedule and complete the physical, see our guide on How to Get a DOT Medical Card.
The 13 Physical Qualification Standards Under 49 CFR 391.41
49 CFR 391.41 sets 13 physical qualification categories a driver must meet before a certified examiner can issue a medical certificate. The regulation uses the phrase "physically qualified" — meaning the driver must affirmatively satisfy each applicable standard, not merely avoid being disqualified. Here are all 13 categories:
Limb Loss and Function
391.41(b)(1)A driver must not have lost a foot, leg, hand, or arm, OR must have obtained a Skill Performance Evaluation (SPE) Certificate that confirms they can safely operate a CMV. Loss of fingers, partial limb function impairment, or limb use impairment also falls under this standard — evaluated on a case-by-case basis.
Neurological Conditions
391.41(b)(2)No current clinical diagnosis of any disease that would reasonably affect nervous system function, cause loss of consciousness, or impair the ability to control a CMV safely. This includes uncontrolled epilepsy, multiple sclerosis, Parkinson's disease, and other progressive neurological conditions. The FMCSA Epilepsy Exemption Program allows qualified applicants with controlled seizure history to obtain certification.
Mental Health
391.41(b)(3)No current clinical diagnosis of a mental, nervous, organic, or functional disease likely to interfere with the ability to drive safely. Examiners apply clinical judgment — this is not a blanket prohibition on mental health conditions but requires evaluation of functional impairment and medication effects. Conditions controlled with medication are evaluated including the medication's potential to impair driving.
Eyesight — Distant Acuity
391.41(b)(4)Distant visual acuity of at least 20/40 in each eye and combined, with or without corrective lenses. First distant acuity must be measured without lenses; if the standard is not met, lenses may be added. If the standard is only met with corrective lenses, the restriction 'must wear corrective lenses' is noted on the certificate.
Eyesight — Field of Vision
391.41(b)(5)Horizontal field of vision of at least 70 degrees in the horizontal meridian in each eye. This is the peripheral vision standard. Drivers who do not meet field of vision requirements may apply for the FMCSA Vision Exemption Program.
Eyesight — Color Recognition
391.41(b)(6)Ability to recognize and distinguish among traffic control signals and devices showing standard red, green, and amber colors. Tested with pseudoisochromatic plates (Ishihara) or equivalent color recognition test.
First Perception of Hearing
391.41(b)(7)Ability to first perceive a forced whispered voice in the better ear at not less than 5 feet with or without the use of a hearing aid, or, if tested via audiometric device, does not have average hearing loss in the better ear greater than 40 decibels with or without a hearing aid. Hearing aids are explicitly permitted — their use must be noted on the certificate.
Substance Use — Amphetamines
391.41(b)(8)Does not use any Schedule I substance, amphetamine, narcotic, or other habit-forming drug. Exception: may use an amphetamine or habit-forming drug if prescribed by a licensed physician who has advised the driver that the substance will not adversely affect their ability to safely operate a CMV. Examiners evaluate each case individually.
Alcohol Use
391.41(b)(9)No current clinical diagnosis of alcoholism. This is not a zero-tolerance drinking standard — it is a prohibition on clinical alcoholism as a diagnosed condition. Prior history does not automatically disqualify; current diagnosis and active disorder do.
Cardiovascular Disease
391.41(b)(10)No current clinical diagnosis of myocardial infarction, angina pectoris, coronary insufficiency, thrombosis, or any other cardiovascular disease of a variety that is likely to cause syncope (fainting), dyspnea (shortness of breath), collapse, or incapacity. Drivers who have had cardiac events can often be recertified following a recovery period and cardiologist clearance letter confirming return-to-drive fitness.
Respiratory Disease
391.41(b)(11)No current clinical diagnosis of a respiratory dysfunction that is likely to interfere with the driver's ability to control and drive a commercial motor vehicle safely. Moderate to severe COPD, severe asthma, and similar conditions fall under this standard. Most drivers with controlled respiratory conditions can be certified.
Blood Pressure and Hypertension
391.41(b)(12)Current blood pressure level must not be disqualifying. Under FMCSA guidance: below 140/90 earns 2-year certification; 140–159/90–99 earns 1-year certification; 160–179/100–109 earns 3-month temporary certification; at or above 180/110 is disqualifying until controlled. See the full blood pressure section below for details.
Diabetes
391.41(b)(13)No clinical diagnosis of diabetes currently requiring insulin for control — unless the driver holds a valid FMCSA Insulin-Treated Diabetes Mellitus (ITDM) Exemption and meets the additional monitoring and documentation requirements. Non-insulin controlled diabetes is permitted with appropriate documentation of stable management. See the diabetes section below for details.
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Vision Requirements for CDL Drivers
Vision is one of the most evaluated standards during the DOT physical. The requirements under 49 CFR 391.41(b)(4), (b)(5), and (b)(6) cover three distinct components of visual function:
Distant Acuity
20/40 in each eye and combined
Measured without correction first. Corrective lenses allowed. Restriction noted on certificate.
Peripheral (Field) Vision
70° horizontal in each eye
No corrective lenses apply to this standard. Federal vision exemption available if not met.
Color Recognition
Red, green, amber recognition
Traffic signal colors. Tested with Ishihara plates or equivalent. Color blindness in one type may still qualify.
Drivers who do not meet the distant acuity or peripheral vision standards may apply for the FMCSA Federal Vision Exemption Program. This program allows drivers with monocular vision, inadequate peripheral field, or other vision impairments to obtain a federal exemption and be medically certified. Applications are submitted to FMCSA and evaluated by a medical review board. Exemptions are renewed annually.
See our detailed guide on DOT Physical Requirements for the full vision examination process, what the Snellen chart test involves, and tips for drivers concerned about their vision standards.
Hearing Requirements
The hearing standard under 49 CFR 391.41(b)(7) requires that a driver can perceive a forced whispered voice in the better ear at not less than 5 feet, with or without a hearing aid. Alternatively, the standard can be met via audiometric testing showing average hearing loss in the better ear not greater than 40 decibels.
| Test Method | Standard | Hearing Aid Permitted? |
|---|---|---|
| Forced whisper test | Perceive at 5 feet in best ear | Yes — restriction noted on card |
| Audiometric testing | ≤40 decibels average loss in best ear | Yes — restriction noted on card |
Hearing aids are explicitly permitted under the regulation — a driver who meets the standard only with a hearing aid is certified with the notation that hearing aids must be worn while driving. There is no federal exemption program for hearing because the standard already accommodates correction. Drivers with complete or near-complete deafness who cannot meet the whisper standard even with amplification are medically disqualified under FMCSA rules, though some states may apply different standards for intrastate operations.
Blood Pressure and Cardiovascular Standards
Blood pressure is one of the most common sources of shortened certification periods and conditional certifications during DOT physicals. The standard falls under 49 CFR 391.41(b)(12) for hypertension and 49 CFR 391.41(b)(10) for broader cardiovascular disease.
Blood Pressure Thresholds and Certification Periods
Below 140/90
24-month certificateStandard certification. No additional monitoring required.
140–159 / 90–99 (Stage 1)
12-month certificateAnnual certification. Driver should work to achieve controlled BP before next exam.
160–179 / 100–109 (Stage 2)
3-month temporary certificateTemporary certification. Driver must return in 3 months with BP controlled below 160/100 for a 1-year certificate.
180/110 or above (Stage 3)
Disqualifying — no certificateDriver cannot be certified until BP is treated and demonstrated below 160/100. Must return for new examination.
Blood pressure measured during the physical reflects the reading at that moment — not average readings over time. Drivers can request a brief rest period (5 minutes) and a recheck if the initial reading is elevated due to white-coat hypertension or situational stress. Examiners typically use the lower of two readings if the driver requests a recheck.
For a dedicated guide including a 30-day preparation plan for drivers concerned about blood pressure during their physical, see our DOT Physical Blood Pressure Requirements guide.
Cardiovascular Disease Beyond Hypertension
Under 49 CFR 391.41(b)(10), drivers cannot be certified if they have a current clinical diagnosis of cardiovascular disease likely to cause syncope, dyspnea, collapse, or incapacity. The FMCSA Medical Examiner Handbook provides detailed guidance on evaluating specific cardiac conditions:
Post-Myocardial Infarction
Can be certified after sufficient recovery period. Requires cardiologist clearance letter confirming fitness to drive commercially.
Coronary Artery Disease
Evaluated based on functional capacity and stability. Exercise stress test results often required. Cardiologist letter needed.
Cardiac Arrhythmias
Highly variable — depends on type, symptom history, and treatment. Pacemaker or defibrillator patients evaluated individually.
Heart Failure
Disqualifying if current diagnosis involves symptoms. May be certifiable with demonstrated stability and cardiologist clearance.
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Diabetes and Insulin Rules
Diabetes rules represent one of the most complex areas of DOT medical certification and have evolved significantly since FMCSA's Insulin-Treated Diabetes Mellitus (ITDM) exemption program was established. The governing regulation is 49 CFR 391.41(b)(13).
Diabetes Certification Framework
Diet-controlled diabetes
CertifiableNo special documentation required beyond standard disclosure on the health history form. Standard 24-month certification if no other conditions limit validity.
Oral medication-controlled diabetes
Certifiable — 12-month limitationAnnual certification required. Examiner may request treating physician documentation confirming stable blood glucose management, HbA1c results, and no disqualifying hypoglycemic episodes.
Insulin-treated diabetes (ITDM) — without exemption
DisqualifyingA driver who requires insulin to manage diabetes is medically disqualified under 49 CFR 391.41(b)(13) unless they hold a current FMCSA ITDM Exemption.
Insulin-treated diabetes (ITDM) — with FMCSA exemption
Certifiable — 12-month limitationDriver must have an active FMCSA ITDM Exemption, provide an endocrinologist's monitoring letter confirming glucose control, demonstrate proper hypoglycemia prevention protocols, and self-monitor glucose before and during trips per the exemption requirements.
The FMCSA ITDM Exemption application is submitted to the FMCSA Office of Medical Programs. Applications require documentation from an endocrinologist and a history demonstrating glucose stability. Exemptions are granted for 12 months and must be renewed annually. The exemption number must be provided to the medical examiner at the time of the physical examination.
Mental Health and Substance Use Standards
Mental health and substance use fall under 49 CFR 391.41(b)(3), (b)(8), and (b)(9). These standards apply clinical judgment rather than categorical disqualification for all conditions — with the exception of active alcoholism (a clinical diagnosis) and current Schedule I substance use.
Mental Health Conditions
No current clinical diagnosis of a mental, nervous, organic, or functional disease likely to interfere with the ability to drive safely. Examiners evaluate both the condition and the treatment:
Conditions Evaluated Individually
- Depression — often certifiable if controlled and medication does not impair driving
- Anxiety disorders — evaluated based on functional impact and treatment
- PTSD — evaluated on symptom stability and medication effects
- ADHD — medication matters; stimulants require individual evaluation
- Bipolar disorder — evaluated based on stability and treatment compliance
Disqualifying Conditions
- Active psychosis or schizophrenia with functional impairment
- Severe uncontrolled bipolar disorder
- Any condition causing blackouts, loss of consciousness, or cognitive incapacitation
- Conditions requiring medications that severely impair alertness or reaction time
- Active untreated or unstable major mental health diagnoses
Substance Use
Under 49 CFR 391.41(b)(8), a driver must not currently use any Schedule I controlled substance, amphetamine, narcotic, or other habit-forming drug — unless prescribed by a licensed physician who has explicitly advised that the substance will not adversely affect the driver's ability to safely operate a CMV. The examiner evaluates prescribed controlled substances individually.
Prescribed vs. Recreational — Both Matter
The medical examiner evaluates all substance use — both prescribed and non-prescribed. Cannabis remains a Schedule I substance under federal law and is disqualifying regardless of state legalization or medical prescription status. Drivers on prescription opioids, benzodiazepines, or other controlled substances should bring complete documentation of their prescription and be prepared for the examiner to contact their prescribing physician.
For a detailed list of specific medications that require additional documentation or specialist letters before a DOT physical, see our complete guide on CDL Medical Disqualifying Conditions.
Medical Conditions That Trigger Shorter Certification Periods
Many drivers are surprised to receive a 1-year or even 3-month medical card when they expected the full 24 months. Shorter periods are not punishment — they reflect the examiner's judgment that the condition requires monitoring to ensure continued qualification. Here is a comprehensive reference:
| Condition | Typical Period | Documentation Required at Renewal |
|---|---|---|
| No significant conditions | 24 months | Standard exam only |
| Stage 1 hypertension (140–159/90–99) | 12 months | Demonstrated BP control; may ask for treating physician note |
| Stage 2 hypertension (160–179/100–109) | 3 months (temporary) | BP must be under 160/100 at 3-month recheck for 1-year cert |
| Oral medication-controlled diabetes | 12 months | Treating physician letter; HbA1c results recommended |
| ITDM with federal exemption | 12 months | Current FMCSA exemption; endocrinologist monitoring letter |
| Sleep apnea (CPAP treatment) | 12 months | 90+ days of CPAP compliance data; AHI and adherence report |
| Post-cardiac event | 3–12 months | Cardiologist clearance letter; stress test results |
| Controlled epilepsy with exemption | 12 months | Current FMCSA exemption; neurologist letter |
| Hypothyroidism (treated) | 12–24 months | TSH levels in normal range; treating physician note if needed |
| Corrected vision (lenses required) | 24 months | Restriction noted on card; corrective lenses required while driving |
Fleet managers must account for the full range of certification periods across their driver pool. A fleet with 30 drivers may have a mix of 24-month, 12-month, and 3-month cards all expiring at different times. Manual tracking of this matrix is where most compliance failures originate.
How Carriers Must Track and File Medical Certificates
Carrier obligations under 49 CFR 391.51 are independent of and parallel to the driver's personal certification obligation. A driver maintaining their own card does not relieve the carrier of its tracking and filing requirements.
Obtain every driver's Medical Examiner's Certificate before first operation
49 CFR 391.51(b)(7)The MEC must be on file before the driver operates any CMV. Post-hire collection is not compliant.
Maintain the most current certificate in the Driver Qualification File
49 CFR 391.51(b)(7)The DQF must contain the original or legible copy of the most recent MEC. Superseded certificates should be retained but are not the 'current' document.
Track and enforce all expiration dates
49 CFR 391.41(a)Carriers are liable when a driver operates with an expired certificate. The carrier has an independent obligation to proactively track expirations across all drivers.
Verify certificates are from NRCME-listed examiners
49 CFR 391.43A carrier that knowingly or negligently accepts a certificate from an unregistered examiner faces separate violation exposure.
Retain all DQF records for 3 years after separation
49 CFR 391.51(c)Medical certificates — including expired ones — must be retained for 3 years after a driver leaves the company. The entire DQF must remain accessible for FMCSA review.
Penalty Exposure for Carriers
Allowing a driver to operate with an expired medical certificate is a violation of 49 CFR 391.41(a) subject to civil penalties of up to $16,550 per violation under 49 U.S.C. § 521. In a fleet audit where multiple drivers have DQF compliance issues, each driver's file represents a separate violation. Incomplete DQFs uncovered during a compliance review are among the most common and costly findings FMCSA investigators document.
The fine structure is per-incident, not per audit. A carrier found with 5 drivers operating on expired medical certificates faces potential exposure of up to $82,750 — before any other DQF violations are considered.
For action steps when a driver's card has already expired, see CDL Medical Card Expired: What to Do Right Now.
For the step-by-step process of obtaining a medical card — including finding an NRCME examiner, preparing for the physical, and understanding costs — see How to Get a DOT Medical Card.
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Frequently Asked Questions
The DOT medical card requirements are the 13 physical qualification standards set out in 49 CFR 391.41(b)(1)–(b)(13). A driver must meet every applicable standard before a certified medical examiner can issue a Medical Examiner's Certificate. The 13 categories cover: vision, hearing, cardiovascular health, respiratory function, musculoskeletal condition, neurological health, psychiatric health, diabetes management, substance use, limb function, blood pressure, epilepsy/seizure history, and general health conditions that could interfere with safe driving. Meeting all 13 standards earns a standard 24-month certificate; conditions requiring monitoring result in shorter validity periods.
Only medical examiners listed on the FMCSA National Registry of Certified Medical Examiners (NRCME) at nationalregistry.fmcsa.dot.gov may issue a valid DOT medical card. The NRCME includes MDs, DOs, physician assistants, advanced practice nurses, and doctors of chiropractic who have completed FMCSA-approved training and passed the required examination. NRCME certifications expire every 10 years and must be current at the time of the physical. A medical card issued by an unlisted examiner — regardless of that person's professional licensure — is invalid under 49 CFR 391.43.
Absolute disqualifiers under 49 CFR 391.41 include: established epilepsy that is not controlled (without federal exemption), insulin-treated diabetes mellitus (without FMCSA ITDM exemption), loss of foot or leg without a Skill Performance Evaluation Certificate, loss of hand or arm without an SPE, monocular vision without federal vision exemption, uncorrectable vision below 20/40 in either eye, current clinical diagnosis of alcoholism, and current use of any Schedule I controlled substance. Other conditions — high blood pressure, sleep apnea, controlled diabetes, and heart conditions — are disqualifying only in their uncontrolled state and can be certified once stable with appropriate documentation.
A standard DOT medical card is valid for up to 24 months. However, the medical examiner must issue a shorter certification period for drivers with certain conditions. Common shortened periods include: 12 months for Stage 1 hypertension (140–159/90–99), controlled diabetes requiring medication, and sleep apnea managed with CPAP; 3 months for Stage 2 hypertension (160–179/100–109) as a temporary certificate pending BP control; 6–12 months for cardiac conditions pending specialist follow-up. There is no grace period after expiration — a driver with an expired certificate cannot legally operate a CMV.
When a DOT medical card expires, the driver cannot legally operate a commercial motor vehicle until a new one is obtained. For CDL holders, the state DMV will automatically downgrade the CDL to a non-commercial license if the FMCSA system does not reflect a current valid certificate — this can happen without any direct notice to the driver. For carriers, allowing a driver to operate with an expired certificate is a violation subject to fines up to $16,550 per incident under 49 U.S.C. § 521. The driver must complete a new DOT physical with an NRCME-certified examiner to restore their qualification status. See our guide on what to do when a CDL medical card has already expired.
Yes, in limited circumstances. FMCSA administers several federal exemption programs that allow drivers with otherwise-disqualifying conditions to obtain medical certification. Active programs include: the Vision Exemption Program (for monocular vision and other vision impairments), the Diabetes Exemption Program (for insulin-treated diabetes mellitus), the Epilepsy/Seizure Exemption Program, and the Limb Exemption program (Skill Performance Evaluation Certificates for missing limbs or impaired limb function). Applications are submitted to FMCSA, reviewed by a medical advisory board, and must be renewed annually. The exemption number must be on file with the examiner at the time of the physical.
Yes. There is no part-time or occasional-use exception to the DOT medical certification requirement. Any driver who operates a commercial motor vehicle in interstate commerce must hold a valid Medical Examiner's Certificate, regardless of how often they drive or whether driving is their primary job. This applies equally to drivers who operate CMVs seasonally, occasionally, or as a secondary function of a non-driving role. The only relevant question is whether the vehicle qualifies as a CMV under 49 CFR 390.5 and whether the operation involves interstate commerce.
Carriers must verify that every active driver has a current, valid Medical Examiner's Certificate on file in their Driver Qualification File (DQF) at all times. Under 49 CFR 391.51, the DQF must contain the most current certificate and be maintained for the duration of employment plus 3 years. FMCSA does not specify a required review frequency, but carriers are liable for violations discovered during roadside inspections or audits — meaning a driver operating with an expired certificate creates immediate carrier liability regardless of when the carrier last checked. Best practice is a monthly audit of all driver medical certificate expirations, with automated alerts at 90, 60, and 30 days.
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