Everything CDL drivers need to know about FMCSA blood pressure requirements — Stage 1, 2, and 3 explained.
Blood pressure is one of the most common reasons CDL drivers fail or get a shortened certificate at their DOT physical. The good news: if you understand the FMCSA's rules ahead of time, you can plan accordingly — and in most cases, still get certified even if your blood pressure runs high.
The FMCSA uses a three-stage classification system based on your reading at the time of the exam. Here is the full breakdown:
| Stage | Systolic (top number) | Diastolic (bottom number) | Result | Certificate Length |
|---|---|---|---|---|
| Normal | Less than 140 | Less than 90 | Pass | 2 years |
| Stage 1 | 140 – 159 | 90 – 99 | Pass | 2 years |
| Stage 2 | 160 – 179 | 100 – 109 | Pass (limited) | 1 year only |
| Stage 3 | 180 or higher | 110 or higher | Disqualified | Not certified |
Important: Only ONE number needs to be in a higher stage to trigger that classification. For example, a reading of 175/85 is Stage 2 because the systolic (top number) is in the 160–179 range, even though the diastolic (bottom number) is normal.
Stage 1 hypertension is very common and does not shorten your certificate. You still qualify for the standard 2-year Medical Examiner Certificate. However, the examiner will note the elevated reading in your file, and you should work with your doctor to get it under control before your next exam.
At Stage 2, you can still drive — but your certificate is valid for only one year instead of two. At your next annual exam, if your blood pressure has not improved below 160/100, you may be moved to Stage 3. This is a strong signal to get on blood pressure medication or adjust your current treatment before the year is up.
A Stage 3 reading means the examiner cannot certify you that day. You are temporarily disqualified until your blood pressure is brought under control. Once your treating physician documents that your BP is consistently below 180/110 — typically through medication — you can return for a new exam and be certified with a 1-year certificate.
Stage 3 disqualification is temporary, not permanent. Most drivers are back on the road within 2–4 weeks once they begin or adjust their medication.
Yes — absolutely. The FMCSA does not prohibit blood pressure medication for CDL drivers. In fact, taking your prescribed medication as directed is encouraged.
What the examiner will do:
Common blood pressure medications that are generally acceptable for CDL drivers include ACE inhibitors (lisinopril), ARBs (losartan), calcium channel blockers (amlodipine), and diuretics. Beta-blockers are also acceptable but the examiner may ask more questions since some can cause fatigue.
Tip: Bring your prescription bottle or a medication list to your DOT physical. It makes the exam faster and avoids any confusion.
If your blood pressure tends to run high, these steps can help bring it down naturally before exam day:
If you have "white coat hypertension" (blood pressure that spikes due to the stress of a medical setting), let the examiner know. Many examiners will take multiple readings and use the lowest one.
Blood pressure alone disqualifies you only at Stage 3 (180/110 or higher). However, there are related cardiovascular conditions that can also affect your certification:
In most cases, these are not permanent disqualifications. With proper documentation from a specialist, the majority of drivers with cardiovascular conditions can still be certified.
The maximum blood pressure for certification is 179/109 mmHg (Stage 2). At this level you receive a 1-year certificate. A reading of 180/110 or higher (Stage 3) results in same-day disqualification until blood pressure is controlled.
Yes. If you are disqualified for Stage 3 blood pressure, you can return for a new exam once your blood pressure is consistently controlled below 180/110. Most examiners recommend getting a note from your primary care doctor confirming your BP is stable on medication before booking your return appointment.
FMCSA guidelines allow the examiner to use clinical judgment. Many examiners will take two or three readings and use the average or the lowest reading. If you feel anxious, ask to sit quietly for a few minutes and request a second reading.
Yes. Take your prescribed medication as directed. Bring a list of your medications to the exam. Most blood pressure medications are compatible with CDL driving as long as they do not cause disqualifying side effects such as severe dizziness or fainting.
There is no fixed waiting period. Once your treating physician documents that your blood pressure is consistently controlled below 180/110 mmHg — usually within 2–4 weeks of starting or adjusting medication — you can schedule a new DOT physical and be certified with a 1-year certificate.
Your Medical Examiner Certificate and examination results are reported to the FMCSA National Registry. However, the specifics of your blood pressure reading are part of your medical file and not shared with your employer unless you provide your certificate to them.
The FMCSA stages are based on whichever number is higher. If your systolic is 165 but your diastolic is 85, you are Stage 2 because the systolic falls in the 160–179 range. Both numbers matter independently.