DOT blood pressure guidelines
Blood pressure is the number one reason drivers walk out with a 3-month card instead of a 2-year one. The thresholds are fixed, they're published by the FMCSA, and they're the part of the exam you have the most control over.
The thresholds, and what each one costs you
Normal · Below 140 / 90
Certified up to 24 monthsNothing to monitor. You get the full card.
Stage 1 · 140–159 / 90–99
One-time 1-year certificateAt recertification you need to be below 140/90 to keep getting 1-year cards.
Stage 2 · 160–179 / 100–109
One-time 3-month certificateGet below 140/90 within those 3 months and you can be certified for 1 year at a time.
Stage 3 · 180 / 110 or higher
Disqualified until controlledOnce you're below 140/90 you can be certified for 6 months, then recertified every 6 months.
Source: FMCSA Medical Examiner Handbook advisory criteria for hypertension, issued under 49 CFR 391.41(b)(6). Examiners have discretion within these criteria.
How to lower blood pressure before a DOT physical
None of this is exotic. It's the same short list every time, adapted to a life spent in a cab.
Cut sodium where drivers actually get it
Truck-stop hot food, jerky, canned soup, and fast-food combos routinely run 1,500–3,000 mg of sodium in one sitting. Swapping one hot meal a day for a lower-sodium option is the single biggest lever most drivers have.
Short daily cardio beats occasional gym sessions
Ten minutes of brisk movement most days is enough to start moving systolic pressure. Consistency matters more than intensity, and it fits inside a 30-minute break.
Lose the first 5–10 pounds
Modest weight loss reliably lowers blood pressure for most people. You do not need to hit a goal weight before your exam to see the reading move.
Take your medication exactly as prescribed
Being on blood pressure medication does not disqualify you. Stopping it before an exam, or taking it inconsistently, is what causes bad readings.
Control the exam-day variables
Skip caffeine and nicotine before the appointment, use the bathroom first, sit quietly for five minutes, and keep both feet flat with your arm supported at heart level. Ask for a re-check if the first reading is high — examiners routinely allow it.
Know your own numbers before you walk in
A cheap cuff and a week of readings tells you whether you have a real problem or white-coat nerves. Bring the log.
Blood pressure & DOT physical FAQ
What are the DOT blood pressure guidelines?+
Below 140/90 qualifies you for a certificate up to 24 months. 140–159/90–99 is stage 1 and gets a one-time 1-year certificate. 160–179/100–109 is stage 2 and gets a one-time 3-month certificate. 180/110 or higher is stage 3 and is disqualifying until the reading is controlled below 140/90.
What blood pressure will fail a DOT physical?+
A reading of 180/110 or higher disqualifies you until it is brought under control. Readings between 140/90 and 179/109 do not fail you outright — they shorten your certification period.
Can I take blood pressure medication and still pass?+
Yes. Treated hypertension is acceptable as long as the medication is well tolerated and your reading meets the threshold. Never stop a prescribed medication before an exam.
Can the examiner re-check my blood pressure?+
Yes. Medical examiners commonly allow repeat readings during the same visit, and many will let you return for a re-check. Ask — a single nervous reading should not decide your card.
How fast can I lower my blood pressure before a DOT physical?+
Cutting sodium, adding daily movement, sleeping properly, and taking prescribed medication consistently can move the number within a few weeks. Same-day tricks are unreliable; the honest answer is to start a month out.
Two habits move that number. Both fit in a break.
Cab-Fit builds you a 10-minute daily workout you can do next to the rig and shows you lower-sodium options at truck stops near you, with USDA-verified macros.
General information, not medical advice. Talk to your doctor or your certified medical examiner about your own readings and medications.