Compliance
CDL Blood Pressure Requirements for the DOT Physical
By Editorial Team · Updated June 16, 2026 · Editorial standards
A driver shows up for a DOT physical, the examiner wraps a cuff around their arm, and a single number decides whether they walk out with a two-year medical card, a three-month card, or no card at all. Blood pressure is the one reading that quietly governs how long a med card lasts — and how often the driver has to come back. If you hire CDL drivers, knowing where the federal lines fall tells you why one new hire’s card expires in two years and another’s expires in 90 days, before anyone calls it a problem.
Key takeaways
- A blood pressure under 140/90 earns the longest med card — up to two years. Once a driver crosses 140/90, the certification window shrinks, and above 180/110 the examiner can’t certify at all until the pressure comes down.
- FMCSA’s blood-pressure rules are tiered, and they’re guidelines, not a hard pass/fail. The certified medical examiner applies the cardiovascular advisory criteria but keeps clinical discretion — readings also vary visit to visit, so one high number isn’t automatically a career problem.
- Blood pressure medication is allowed and does not, by itself, disqualify a driver. What FMCSA cares about is whether the pressure is controlled; a driver on meds with a reading under 140/90 can still earn a full-length card.
- A clean blood-pressure reading proves medical fitness — not reliability or rehireability. The med card says the driver can physically operate the truck on exam day. It says nothing about no-shows, abandoned loads, or whether a past carrier would take them back.
What “blood pressure requirements” mean on a DOT physical
Blood pressure on a DOT physical is the reading that determines how long a driver’s medical certificate stays valid, under the physical-qualification standard in 49 CFR §391.41. That regulation says an interstate commercial motor vehicle (CMV) driver must have “no current clinical diagnosis of high blood pressure likely to interfere with safe driving.” The number is the systolic pressure (top) over the diastolic pressure (bottom), written as something like 138/88.
The practical effect is that blood pressure rarely produces a flat “fail.” Instead, it sets the length of the card. A driver well under the line gets the maximum two-year certificate; one creeping into hypertension gets a shorter card and a faster return visit; one with severely elevated pressure gets sent away to control it before any certificate is issued. The examiner applying these standards has to be a certified medical examiner on FMCSA’s National Registry — the rules only carry weight when the right person reads the cuff.
The blood pressure to pass a DOT physical
To earn the full two-year medical card, a CDL driver generally needs a blood pressure below 140/90. That’s the threshold that signals “no current clinical diagnosis of high blood pressure likely to interfere with safe driving” in the clearest way, and it’s the reading every driver should be aiming for before they walk in.
That said, “pass” is the wrong mental model. A reading at or above 140/90 doesn’t end the exam — it shortens the card and starts a clock. FMCSA’s guidance, drawn from the Medical Examiner Handbook and the agency’s cardiovascular advisory criteria, breaks elevated pressure into three stages, each with its own certification window. Knowing the stage a reading falls into is the difference between planning around a two-year cycle and planning around a 90-day one.
DOT physical blood pressure chart: the FMCSA certification tiers
FMCSA’s blood-pressure guidelines map each stage of hypertension to a specific certification length, summarized in the chart below. These are the cardiovascular advisory criteria certified examiners use as guidance — they are not an inflexible rule, and the examiner retains clinical discretion on every exam.
| Blood pressure reading | Stage | Certification outcome |
|---|---|---|
| Under 140/90 | Normal / acceptable | Certified for up to 2 years |
| 140–159 / 90–99 | Stage 1 hypertension | May be certified one time for 1 year; recertified annually as long as the reading stays at or below 140/90 |
| 160–179 / 100–109 | Stage 2 hypertension | One-time 3-month certificate; once reduced to ≤140/90, certified for 1 year, then annually |
| 180/110 or higher | Stage 3 hypertension | Disqualified until controlled; once reduced to ≤140/90, certified for 6 months and recertified every 6 months |
Two things to read out of that table. The one-time language in Stages 1 and 2 matters — the longer one-year-then-annual certificate at those stages is a single allowance, not something a driver can keep collecting if the pressure stays elevated. And every path back to a longer card runs through the same gate: get the reading to 140/90 or below.
Blood pressure medication and the DOT physical
Taking blood pressure medication does not disqualify a CDL driver — uncontrolled blood pressure does. This is one of the most common misunderstandings at the hiring desk, and it cuts in the driver’s favor. FMCSA’s standard is about control, not whether a driver takes a pill to get there. A driver on a common antihypertensive — an ACE inhibitor, diuretic, or beta-blocker — whose reading comes in under 140/90 is a controlled, qualified driver and can earn a full-length card.
The flip side is that the medication has to be doing its job at the exam. An examiner may confirm the driver tolerates it without side effects that would interfere with safe driving — but the medication’s presence is not the problem. What ends a certification is a number that stays high regardless. For a driver who knows their pressure runs warm, the practical move is to bring a current medication list and recent readings; our guide on what to bring to a DOT physical covers the full document set that smooths out the visit.
When high blood pressure causes a CDL disqualification
High blood pressure causes a CDL disqualification only when it’s severe and uncontrolled — a reading of 180/110 or higher — and that disqualification lifts once the pressure is brought under control. This is the Stage 3 scenario, and it’s important to frame it correctly: it is almost never permanent. The examiner won’t certify a driver whose pressure is at or above 180/110 at the time of the exam, but the door reopens the moment treatment brings the reading down.
Once a Stage 3 driver gets the pressure to 140/90 or below, the examiner may issue a six-month certificate and recertify every six months going forward — a shorter leash than a two-year card, but a valid one. So “disqualified for high blood pressure” really means “not certified today, and back on the road once it’s controlled.” Because a single reading can spike from stress, caffeine, or a bad night’s sleep, readings vary by visit, and a recheck after treatment is the normal path. None of this is medical advice; the certified examiner and the driver’s own physician make the calls, and a driver should follow their guidance, not a chart.
For employers, all of this lives one rung up in the broader medical-fitness stack. Blood pressure is just one of the standards a CDL medical card certifies — alongside vision, hearing, and diabetes screening. The med card is the summary document; the blood-pressure tier is one input behind how long it lasts. You can verify the rest of the program through FMCSA’s medical program resources and the National Registry of certified examiners.
What a clean reading proves — and what it doesn’t
A clean blood-pressure reading proves a driver is medically fit to operate a truck on the day of the exam — and nothing more. That’s a real and required thing. It is also the narrowest possible statement about a person you’re about to hand a loaded 80,000-pound rig and your operating authority.
A two-year med card with a perfect 118/76 says nothing about whether the driver shows up for orientation, finishes the loads they accept, or left their last three carriers on good terms. It won’t flag the ones who abandon a truck mid-route or ghost a dispatcher after a load is on. Those are reliability and rehire signals, and the DOT physical was never built to capture them — the cuff measures the artery, not the work history. A medically qualified driver and a hireable driver are two different findings.
That gap is exactly what a peer driver-review database is built to fill. CDLscan is a peer-sourced driver-review database — more than 1,000,000 driver reviews, around 23,419 searches a week, and free to search. Alongside your medical and licensing checks, never instead of them, you can search a driver on CDLscan by name and read what past carriers actually reported about reliability and rehireability before you sign anyone. Given that a single bad hire runs an estimated $8,000 to $50,000 once you count recruiting, training, downtime, and the scramble to backfill, a quick CDLscan check is cheap insurance next to the card in your file.
Frequently asked questions
What blood pressure will fail a DOT physical? A reading of 180/110 or higher (Stage 3 hypertension) keeps an examiner from certifying the driver until the pressure is brought under control. Readings between 140/90 and 179/109 don’t “fail” outright — they shorten the certification window depending on the stage. A reading under 140/90 earns the full two-year card.
What is the blood pressure reading to pass a DOT physical? Aim for under 140/90. That threshold supports the longest medical card — up to two years — and signals no current clinical diagnosis of high blood pressure. At or above 140/90, the driver can usually still be certified, but for a shorter period.
Can you drive a CMV while taking blood pressure medication? Yes. Blood pressure medication does not disqualify a driver by itself. FMCSA’s standard is about whether the pressure is controlled, not whether a driver takes medication to control it. A driver on antihypertensives whose reading comes in under 140/90 can earn a full-length card.
How long is the med card with high blood pressure? It depends on the stage. Stage 1 (140–159/90–99) allows a one-time one-year card, then annual recertification while the reading stays at or below 140/90. Stage 2 (160–179/100–109) gives a one-time three-month card, then a one-year card and annual recertification once controlled. Stage 3 (180/110+) means no card until controlled, then six-month certificates.
What are the FMCSA blood pressure stages? FMCSA’s cardiovascular guidance uses three tiers: Stage 1 is 140–159/90–99; Stage 2 is 160–179/100–109; Stage 3 is 180/110 or higher. Each tier carries its own certification length, and every road back to a longer card runs through getting the reading to 140/90 or below.
Can high blood pressure permanently disqualify a CDL driver? Almost never. A Stage 3 reading (180/110+) disqualifies the driver only until the pressure is controlled. Once treatment brings it to 140/90 or below, the examiner may certify the driver for six months at a time. High blood pressure is treated as a manageable, recertifiable condition — not a permanent bar.
Are FMCSA’s blood pressure limits a strict rule or a guideline? They are guidelines drawn from the FMCSA Medical Examiner Handbook and the agency’s cardiovascular advisory criteria. The certified medical examiner applies them but retains clinical discretion on each exam, and may recheck a spiked reading before deciding. This is general information, not medical advice — the examiner and the driver’s doctor make the actual call.
Does a clean blood-pressure reading mean a driver is a safe hire? No. A clean reading and a valid med card confirm only that the driver is medically fit to operate a CMV on the exam date. They say nothing about reliability, no-shows, abandoned loads, or whether past carriers would rehire the driver. A peer driver-review check on CDLscan adds that behavior layer alongside your medical and licensing checks.