You drove three hours to the DMV with your ELDT certificate, your CLP, and your application filled out. The clerk looked at your paperwork, checked your documents, and asked for your Medical Examiner’s Certificate. You do not have one. You drove three hours for nothing.
The DOT physical is not optional. It is the gatekeeper to your entire commercial driving career. No medical card means no CLP, no CDL, no trucking job. Yet thousands of drivers show up to their exam unprepared because nobody told them what the doctor is actually checking.
This guide covers every DOT physical requirement for 2026: the exact blood pressure numbers, vision and hearing standards, the conditions that disqualify you, and the ones that used to disqualify you but now have exemption pathways.
Who Can Perform the Exam
Not any doctor can give you a DOT physical. The exam must be performed by a Certified Medical Examiner (CME) listed on the National Registry of Certified Medical Examiners maintained by the FMCSA. Your family doctor cannot perform this exam unless they have completed the specific FMCSA certification training.
Find a certified examiner at the FMCSA National Registry website. Most occupational health clinics, truck stops, and urgent care centers have certified examiners on staff.
Blood Pressure Requirements
Blood pressure is the number one reason drivers fail the DOT physical. Know the exact thresholds before you walk into the clinic.
| Blood Pressure Reading | Medical Card Duration | Action Required |
|---|---|---|
| Below 140/90 | 2-Year Card | None - you pass |
| 140-159 / 90-99 | 1-Year Card | Must recertify annually |
| 160-179 / 100-109 | 3-Month Card | Must lower BP and retest within 3 months |
| 180/110 or higher | Disqualified | Cannot drive until BP is controlled |
Strategy: If your blood pressure tends to run high, take your prescribed medication consistently for two weeks before the exam. Avoid caffeine, energy drinks, and salty foods for 24 hours before your appointment. Sit quietly in the waiting room for 5 minutes before the reading.
You can retake the DOT physical if you fail the blood pressure check. There is no mandatory waiting period. Treat the condition, get your numbers down, and schedule a new exam.
Vision Requirements
The vision test is the second most common reason for failing the DOT physical. The standards are specific and non-negotiable.
- Acuity: At least 20/40 in each eye, with or without corrective lenses (glasses or contacts)
- Field of vision: At least 70 degrees in each eye (horizontal field)
- Color vision: Must be able to distinguish the colors red, green, and amber - these are the standard traffic signal and brake light colors
If you wear glasses or contacts: Bring them. The examiner will test your vision with correction. If your corrected vision is 20/40 or better in each eye, you pass the vision portion.
Monocular vision (vision in one eye only): Generally disqualifies you from interstate driving. Some states grant waivers for intrastate-only CDL operation. Check with your state DMV for specific waiver programs.
Hearing Requirements
You must be able to hear a forced whisper at a distance of 5 feet from the ear, with or without a hearing aid. The whisper test is the standard method used by most certified medical examiners.
Alternatively, you can pass with an audiometry test showing hearing loss no greater than 40 decibels in the better ear at frequencies of 500 Hz, 1000 Hz, and 2000 Hz.
If you use hearing aids, bring them to the exam. The examiner will test your hearing with the devices in place.
Urinalysis: What They Are Testing
The DOT physical includes a urinalysis, but it is not a drug test. The urine sample checks for:
- Protein: Indicator of kidney problems
- Blood: Indicator of urinary tract issues or kidney disease
- Specific gravity: Indicator of hydration levels and kidney function
- Sugar (glucose): Indicator of diabetes
Important: A positive glucose result does not automatically disqualify you. The examiner may request additional blood work (A1C test) to determine if your diabetes is managed. Insulin-dependent diabetics can now qualify for a CDL under the FMCSA Diabetes Exemption Program.
Drug testing is a completely separate process conducted through your employer’s random testing program or pre-employment screening - not through the DOT physical exam.
Disqualifying Medical Conditions
The following conditions will prevent you from passing the DOT physical:
Automatic Disqualifications
- Uncontrolled epilepsy or seizure disorder: Any history of seizures requires documentation that the condition is controlled with medication and the driver has been seizure-free for the period specified by the FMCSA
- Uncontrolled diabetes with complications: Severe diabetic neuropathy or retinopathy that impairs safe driving
- Cardiovascular disease: Recent heart attack (within 3 months), coronary artery bypass surgery (within 3 months), or uncontrolled congestive heart failure
- Current use of Schedule I substances: Any use of drugs listed on Schedule I of the Controlled Substances Act
- Severe mental health conditions: Uncontrolled psychosis, severe bipolar disorder, or personality disorders that impair judgment
Conditions That Require Additional Documentation
- Diabetes treated with insulin: You can qualify under the FMCSA Diabetes Exemption Program if your A1C is well-managed and your endocrinologist provides documentation
- Sleep apnea: Not automatically disqualifying. If diagnosed, you must demonstrate CPAP compliance (minimum 4 hours per night on 70% of nights). Bring your CPAP compliance report to the exam
- Hypertension managed with medication: As long as your reading is below 140/90 with medication, you qualify for the 2-year card
- History of heart attack or cardiac stent: Can qualify if you provide a letter from your cardiologist and pass a stress test showing functional capacity to safely operate a CMV
Sleep Apnea: The Growing Concern
The FMCSA does not have a formal sleep apnea rule, but medical examiners are directed to evaluate drivers who exhibit risk factors:
- Neck circumference greater than 17 inches
- BMI of 35 or higher
- Reported symptoms like excessive daytime drowsiness, loud snoring, or witnessed apnea episodes
If the examiner suspects sleep apnea, they may issue a temporary card and require you to complete a sleep study within 90 days. If the study confirms sleep apnea, you must begin CPAP therapy and demonstrate compliance before receiving a full medical card.
CPAP compliance: Most examiners look for at least 4 hours of use per night on 70% or more of nights. Bring your CPAP machine’s data download to every DOT physical appointment.
Practice Questions: DOT Physical Requirements
A blood pressure reading below 140/90 qualifies you for the standard 2-year medical card. Readings between 140-159/90-99 receive a 1-year card. Readings of 160/100 or higher face progressive restrictions or disqualification.
The **DOT physical** urinalysis checks for protein, blood, specific gravity, and glucose - indicators of kidney function and diabetes. It is not a drug test. Drug screening is conducted separately through employer programs and the FMCSA Clearinghouse.
Since the FMCSA established the Diabetes Exemption Program, insulin-dependent diabetics can qualify for a CDL if they provide documentation from an endocrinologist showing well-managed A1C levels and no disqualifying complications. You must submit the exemption application and receive approval before the medical examiner can issue a card.
You need at least 20/40 visual acuity in each eye, with or without corrective lenses, and a horizontal field of vision of at least 70 degrees in each eye. You must also be able to distinguish red, green, and amber colors. Bring your glasses or contacts to the exam.
Conclusion
The DOT physical is the first checkpoint of your trucking career and a recurring requirement every 1 to 2 years for as long as you drive commercially. Knowing the exact requirements before you walk into the clinic saves you time, money, and the frustration of a failed exam.
Get your blood pressure under 140/90 for the full 2-year card. Bring your glasses or contacts for the vision test. If you use CPAP for sleep apnea, bring your compliance report. If you are insulin-dependent, complete the FMCSA Diabetes Exemption Program paperwork before scheduling your exam. And always use a certified medical examiner from the National Registry - your family doctor’s physical does not count.
For help preparing for the CDL knowledge exams, try our Free CDL Practice Test. For the complete licensing timeline, check our CDL Permit Test Study Guide.
Frequently Asked Questions (FAQ)
What blood pressure do you need to pass a DOT physical?
Below 140/90 for a 2-year card. Readings of 140-159/90-99 qualify for a 1-year card. Readings of 160-179/100-109 receive a 3-month temporary card. Readings of 180/110 or higher result in disqualification until the condition is treated and controlled.
Can you pass a DOT physical with one eye?
You need at least 20/40 vision in each eye and a 70-degree horizontal field of vision in each eye. Monocular vision (vision in one eye only) generally disqualifies you from interstate CDL driving. Some states offer waivers for intrastate-only operation. Check with your state DMV for specific waiver programs.
What medical conditions disqualify you from a DOT physical?
Disqualifying conditions include uncontrolled epilepsy, uncontrolled diabetes with complications, recent heart attack or cardiac surgery (within 3 months), blood pressure of 180/110 or higher, and current use of Schedule I substances. Many conditions that used to be automatic disqualifications now have exemption pathways, including insulin-dependent diabetes and treated sleep apnea.
Does sleep apnea disqualify you from getting a CDL?
Sleep apnea does not automatically disqualify you. If you are diagnosed and use a CPAP machine with documented compliance (at least 4 hours per night on 70% of nights), you can pass the DOT physical. Bring your CPAP compliance report to every exam. Untreated or non-compliant sleep apnea will result in denial of your medical card.
How much does a DOT physical cost?
The exam costs $75 to $200 depending on the clinic and location. This includes vision testing, hearing testing, blood pressure measurement, urinalysis, and a full physical examination. The medical card is valid for up to 24 months. Some trucking companies cover the cost as part of their onboarding process.
Can you retake a DOT physical if you fail?
Yes. There is no mandatory waiting period between attempts. If you fail due to high blood pressure or another correctable condition, treat the issue and schedule a new exam. You pay the full exam fee for each attempt. Bring documentation of treatment (medication records, specialist letters) to the retake appointment.