Every CMV driver in interstate commerce must be medically certified as physically qualified before driving — that's 49 CFR §391.41(a), and it applies to a one-truck owner-operator exactly as it applies to a 500-truck fleet. The exam itself hasn't changed much in years. How the certificate gets filed has changed completely, and most guides you'll find are describing the old system: since June 23, 2025, medical examiners transmit CDL drivers' results to FMCSA electronically, states post them to the driving record, and the paper card is on its way out — with a temporary federal exemption smoothing the transition through October 11, 2026.
This post covers the whole lifecycle: who needs the exam, who can perform it, what it covers, how long the certificate lasts, and — the part that's actively changing — what you and your carrier must file, carry, and keep, for CDL and non-CDL drivers separately.
Who needs a medical certificate
If you operate a commercial motor vehicle in interstate commerce, §391.41(a) requires current medical certification. "Commercial motor vehicle" here is the Part 390 definition — it starts at 10,001 lbs GVWR/GCWR, not at the 26,001-lb CDL line. That catches a lot of people who don't think of themselves as regulated: a ¾-ton pickup pulling a 6,000-lb gooseneck is over the threshold, no CDL required, medical card required. If that's you, the hotshot and non-CDL compliance guide walks the full obligation set.
Intrastate-only drivers follow their state's version of the rule, which usually mirrors the federal standard but can differ (some states have their own waiver programs for drivers who can't meet a federal standard intrastate).
§391.45 lists when an exam is required — and it is not just "every two years":
- Before driving, unless you've been examined and certified within the preceding 24 months;
- When the current certificate expires;
- On a 12-month cycle instead, for insulin-treated diabetic drivers (§391.46) and drivers certified under the vision standards alternative;
- After any injury or illness that impairs your ability to drive — this one is routinely missed. Come back from a heart attack, a stroke, or major surgery, and your still-unexpired card does not cover you; §391.45(g) requires a new exam when a condition has impaired your normal duties.
Who performs the exam, and on what forms
Since the National Registry rule, only a medical examiner listed on FMCSA's National Registry of Certified Medical Examiners (NRCME) can perform the DOT physical (§391.43(a)). Your family doctor can't sign you off unless they happen to be registered. The exam is documented on the Medical Examination Report, Form MCSA-5875, and a qualified driver receives the Medical Examiner's Certificate, Form MCSA-5876 — the "med card."
Book the exam like a compliance event, not a doctor's visit: bring your license, your medication list, and — if you have a monitored condition — recent readings or a treating-provider letter. Examiners can and do issue short cards or delay certification pending more information (you get 45 days to supply it before the exam is discarded).
What the exam covers, and the conditions with their own path
§391.41(b) sets the physical qualification standards: vision (20/40 acuity in each eye, 70° field, ability to distinguish traffic-signal colors), hearing (forced whisper at 5 feet or the audiometric alternative), blood pressure, cardiovascular and respiratory function, no condition likely to cause loss of consciousness, no current clinical diagnosis of alcoholism, and no use of Schedule I drugs.
Several conditions that used to be flat disqualifications now have defined paths:
- Insulin-treated diabetes — certifiable under §391.46 with a treating-clinician evaluation, on a maximum 12-month cycle. No federal exemption application anymore.
- Vision deficiency in one eye — the 2022 alternative vision standard replaced the old exemption program; also a 12-month cycle.
- Missing or impaired limbs — the Skill Performance Evaluation (SPE) certificate program.
If an examiner finds you unqualified, that determination is transmitted to FMCSA — since June 2025 the result goes into the federal system either way, which is one more reason to arrive at the exam prepared.
How long the card lasts
Up to 24 months — but the examiner sets the actual period, and shorter cards are common: monitored hypertension typically earns a one-year card, and the ITDM and alternative-vision paths are capped at 12 months by rule. The expiration date printed on the certificate is the date; there is no grace period. The day after expiration you are an unqualified driver under §391.41, which is an out-of-service condition at roadside and an audit finding against the carrier — see the §391.41 violation page for how that's cited and weighted.
Treat renewal like a deadline with lead time: book the exam 30–45 days out so a short card, a follow-up request, or a scheduling problem doesn't put you over the line. The compliance deadline calculator tracks med-cert expirations alongside annual inspections and MVR reviews — it reads the date from the card, which is the correct method; never compute "two years from the exam" and assume.
The filing rules changed in June 2025 — here's the current state
This is where old blog posts will steer you wrong. FMCSA's Medical Examiner's Certification Integration rule (the "National Registry II" or NRII rule) took effect June 23, 2025, and it rewired the paper flow for CDL and CLP holders:
- The examiner transmits results to FMCSA electronically by midnight of the next calendar day after the exam.
- FMCSA transmits the certification to your State Driver's Licensing Agency (SDLA) electronically, and the state posts it to your CDLIS motor vehicle record.
- You no longer take a paper card to the DMV (§391.43(g)(2)(ii)) — examiners aren't even required to issue the paper MCSA-5876 to CDL/CLP holders anymore.
- Your carrier verifies your medical status from the CDLIS MVR, not from a photocopy of the card (§391.51(b)(6)(ii)).
In a fully-integrated world, the med card effectively becomes a database record attached to your CDL. Roadside, an inspector runs your license and sees your status.
The catch: not every state is connected yet — and there's a 60-day paper exemption through October 11, 2026
As of FMCSA's April 2026 notice, 45 states and the District of Columbia have implemented NRII. Five states — Alaska, California, Kentucky, Louisiana, and New Hampshire — have not, and still rely on the paper certificate. The electronic hand-off also produced real-world lag: a driver could pass the physical on Monday and show "expired" in CDLIS for days while the data moved.
To keep medically-qualified drivers from being put out of service over a processing delay, FMCSA granted an exemption (91 FR 19255, Docket FMCSA-2026-0265): from April 11 through October 11, 2026, a paper copy of the medical certificate is valid proof of medical certification for up to 60 days after it was issued — for the driver at roadside, and for the carrier's qualification file. Two conditions, both strict:
- The driver must actually have the paper copy on their person, issued by a certified examiner within the prior 60 days.
- The carrier must hold a copy of that same current card, issued within the prior 60 days.
The practical rule for every CDL driver right now: ask the examiner for the paper certificate at every exam, carry it for 60 days, and give your carrier a copy the same day — even though the electronic system is supposed to make that unnecessary. It costs nothing and it is your only protection while the data catches up. FMCSA has said plainly that carriers and drivers "should not expect additional nationwide waivers or exemptions" after October 11, 2026 — so build the habit of confirming your CDLIS record actually shows the new certification within a couple of weeks of the exam, before the paper stops counting.
One more CDL-side duty that predates all of this and still applies: keep your self-certification with the SDLA current (non-excepted interstate, for most for-hire carriers). If your medical certification lapses in the state's system — because it expired, or because the electronic record never arrived — the SDLA is required to downgrade your CDL. That converts a paperwork problem into a license problem.
Non-CDL drivers: the old rules, unchanged
If you drive a 10,001–26,000-lb vehicle without a CDL, NRII changed nothing about what you carry: you must have the medical certificate (original or copy) on your person while on duty, same as always. Your carrier's obligations, per §391.23(m)(1):
- Verify the examiner was listed on the National Registry on the date the certificate was issued — check at nationalregistry.fmcsa.dot.gov — and put a note of that verification in the driver qualification file. This verification-note requirement took effect June 23, 2025, and it applies to non-CDL drivers only (CDL verification happens through the CDLIS MVR instead).
- Keep a copy of the certificate in the DQF.
For a self-employed owner-operator, "the carrier" is you wearing your other hat — you verify your own examiner and file your own note. The §391.43 violation page covers what happens at audit when the examiner wasn't registered: the exam doesn't count.
What lives in the driver qualification file
The DQF requirement (§391.51(b)(6)) is satisfied by the medical certificate copy for non-CDL drivers, or the CDLIS MVR showing medical status for CDL drivers — plus the SPE certificate or exemption documentation if one applies, plus the non-CDL verification note. Each of these is removable three years after its execution date, so a med card generates a record that outlives the card itself by a year. If you're building the file from nothing, the DQF walkthrough puts the medical items in context with the other seven required documents.
At a new-entrant audit, the medical item is checked per driver, per cycle: current certificate (or CDLIS MVR), registry verification, and no gap between expiration and renewal. A driver who drove even one day past expiration is a §391.45 finding — using a driver not medically examined and certified — and it's exactly the kind of finding that's invisible until an auditor lines the dates up. See the §391.45 violation page for the citation mechanics.
Keeping it current without thinking about it
The medical card is the most expiration-prone document in the entire driver file — it's the shortest-lived, it varies per driver, and a short card can quietly cut its own cycle in half. Roadworthy HQ tracks every driver's certificate with the expiration read straight from the card, alerts you at 90/60/30/7 days, handles short cards with automatic re-alerts, and keeps the DQF copy and verification note filed where an auditor expects them. If you're staying audit-ready on sticky notes today, start a 14-day free trial — no credit card required.
Related violation codes
The requirements covered above are cited as these violation codes in audits and roadside inspections: