DOT Physical Blood Pressure Requirements Explained

The federal thresholds, plain and simple

Medical examiners follow FMCSA blood pressure guidelines when deciding how long your medical card lasts. The bands are based on whichever of your two numbers, systolic or diastolic, puts you in the higher category:

Read that table carefully, because it holds a hopeful fact: blood pressure in the middle bands does not end your career. It shortens your card and puts you on a monitoring cycle. Only the top band stops certification outright, and even then, the path back is getting the pressure controlled, not finding a new line of work.

• 140/90 or below: eligible for the full two-year medical card
• 141 to 159 systolic, or 91 to 99 diastolic: certified for one year at a time
• 160 to 179 systolic, or 100 to 109 diastolic: a one-time three-month card to get it under control
• 180/110 or above: cannot be certified until the pressure is controlled

Life on a one-year card

If your reading lands in the 141 to 159 or 91 to 99 range, you get a one-year card and return for a new exam every year while your pressure stays in that band. Plenty of working drivers live on one-year cards for their whole careers. It is an inconvenience and an annual expense, not a threat to your livelihood.

The practical advice is to treat the year as the project: work with your own doctor between exams, take any prescribed medication exactly as directed, and keep your readings trending the right way. If your pressure comes down and stays down, your examiner can certify you under the standards that apply at your next exam.

The three-month card is a one-time window

A reading in the 160 to 179 or 100 to 109 range gets you a one-time, three-month certification. One-time means exactly that: this particular break is only offered once. The purpose of the window is to give you time to get treatment started and your pressure down.

If you return within those three months with your pressure below 140/90, you can be certified for one year from the date of the original exam. If you do not, or your pressure is still high, you cannot be certified until it is controlled. Letting a three-month card expire without acting is the mistake to avoid, because it converts a manageable situation into a stop-work problem.

Legitimate ways to show up ready

There is no trick that defeats the cuff, and examiners have seen them all. But readings are genuinely affected by ordinary things, and managing them is legitimate preparation, not gaming the exam:

If you already know your blood pressure runs high, the smartest move is to see your own doctor before the DOT exam, not after a bad reading. Walking in with treatment underway and a recent history of controlled readings is the strongest position a driver with hypertension can be in. This page explains the standards; your doctor and your examiner are the people who can advise you on your own health.

• Avoid caffeine, energy drinks, and nicotine in the hours before the exam, since all three can push readings up
• Arrive early enough to sit and rest quietly; a rushed, stressed arrival reads higher
• Take your regular medications as prescribed on exam day, and bring an accurate medication list
• Ask politely for a rest and a second reading if the first one surprises you; examiners commonly allow it

Medication does not disqualify you

Drivers sometimes worry that being on blood pressure medication itself is the problem, or worse, stop taking it before an exam hoping for a better number. Both ideas are backwards. Most common blood pressure medications are fully compatible with certification, and examiners certify treated drivers every day. The standard is the reading, not the prescription.

Going off prescribed medication to pass an exam is dangerous and usually counterproductive, since uncontrolled pressure reads worse, not better. If you have concerns about a medication, the conversation to have is with your prescribing doctor and your examiner, well before your card is about to expire.