A DOT physical requires a urine sample, a vision and hearing test, a blood pressure check, and a review of your full medical history, including any medications you take. You’ll need to bring a valid photo ID, a list of your current medications, and documentation from any specialists if you have conditions like diabetes, heart disease, or sleep apnea. The exam must be performed by a provider listed on FMCSA’s National Registry of Certified Medical Examiners.
Documents and Items to Bring
Start with the basics: a government-issued photo ID (driver’s license or passport) and a complete list of every medication you take, including over-the-counter drugs and supplements. The medical examiner is required to review each one. If you wear glasses or contacts, bring them. If you use a hearing aid, bring it and wear it during the exam.
Beyond that, what you need depends on your medical history. Drivers who use insulin need form MCSA-5870, completed by their treating clinician and submitted to the examiner within 45 days of completion. If you use a CPAP or similar device for sleep apnea, bring your compliance data showing at least 4 hours of use per night on at least 70% of nights. If you have a heart condition, bring a clearance letter from your cardiologist. If you have a missing or impaired limb, you may need a Skill Performance Evaluation (SPE) certificate from FMCSA.
What the Exam Covers
The exam itself is straightforward and typically takes 30 to 45 minutes. Here’s what the examiner checks:
- Vision: You need at least 20/40 acuity in each eye (with or without correction), a field of vision of at least 70 degrees horizontally in each eye, and the ability to distinguish red, green, and amber.
- Hearing: You must be able to perceive a forced whisper at 5 feet or pass an audiometric test. A hearing aid is allowed.
- Blood pressure: Readings below 140/90 qualify you for a full 2-year certificate. Stage 1 (140-159/90-99) gets you 1 year. Stage 2 (160-179/100-109) gets you only a 3-month certificate, after which you can extend to 1 year if your pressure drops below 140/90.
- Urinalysis: You’ll provide a urine sample on-site. This is not a drug test. It screens for protein, blood, and sugar to check for underlying kidney disease or undiagnosed diabetes.
- General physical: The examiner checks your heart, lungs, abdomen, spine, and extremities. They’ll assess your reflexes, grip strength, and range of motion.
Medications That Can Disqualify You
Any Schedule I controlled substance disqualifies you, and that includes marijuana, even in states where it’s legal for medical or recreational use. Methadone is specifically prohibited regardless of the reason it’s prescribed. Narcotics, amphetamines, and other habit-forming drugs are disqualifying unless your prescribing doctor provides a written statement that the medication won’t impair your ability to drive safely. Even then, the medical examiner can still decline to certify you.
Anti-seizure medications used to prevent seizures are automatically disqualifying. For other prescriptions, the examiner evaluates whether side effects like drowsiness, low blood pressure, or impaired alertness could affect your driving. Bring documentation from your prescribing doctor if there’s any question about a medication you take.
Heart Conditions and Clearance Timelines
If you’ve had a heart attack, you can be recertified two months afterward, but you’ll need a stress test done four to six weeks post-event and a cardiologist’s written approval. After that, a stress test is required at least every two years.
Drivers who’ve had bypass surgery must wait at least three months before returning to work and need yearly stress tests after five years due to the risk of graft closure. For a stent placement to treat stable angina, the wait can be as short as one week if the procedure was uncomplicated, with a stress test three to six months later.
Heart transplant recipients must wait at least one year and then recertify every six months with a cardiologist’s evaluation.
Diabetes and Insulin Use
If you manage diabetes without insulin, the examiner will evaluate your blood sugar control and may certify you for up to two years. Insulin-dependent drivers face additional requirements: your treating clinician must complete the MCSA-5870 form confirming that your insulin regimen is stable and your diabetes is properly controlled. This form must reach the certified medical examiner within 45 days of your clinician signing it, so plan ahead and schedule your clinician visit before your DOT exam.
Sleep Apnea
A sleep apnea diagnosis won’t disqualify you as long as you’re treating it. If you use a CPAP machine, your compliance report needs to show usage of more than 4 hours per night on at least 70% of nights. Most CPAP machines store this data automatically, and you can download it or get a printout from your sleep medicine provider. Bring that report to your exam.
If the examiner suspects undiagnosed sleep apnea based on your body size, neck circumference, or reported symptoms like excessive daytime sleepiness, they may require a sleep study before certifying you.
Physical Impairments and the SPE Program
Drivers with a missing hand, finger, arm, foot, or leg, or with an impaired limb that affects their ability to safely operate a commercial vehicle, need a Skill Performance Evaluation certificate to drive in interstate commerce. The process involves submitting an application to your regional FMCSA Service Center, being fitted with the appropriate prosthetic device if applicable, and completing both on-road and off-road driving tests. If you pass, you receive an SPE certificate that you bring to your DOT physical along with your other documentation.
How to Find a Certified Examiner
Your DOT physical must be performed by a provider on FMCSA’s National Registry of Certified Medical Examiners. Not every doctor qualifies. You can search the registry on FMCSA’s website by entering your zip code to find approved examiners near you. These include physicians, physician assistants, nurse practitioners, and chiropractors who have completed FMCSA-specific training and passed a certification test. Urgent care clinics, occupational health clinics, and some trucking companies offer DOT physicals on a walk-in basis, but always verify the examiner is on the registry before your appointment.
Certificate Length and Renewal
A standard DOT medical certificate lasts two years. Certain conditions shorten that period: elevated blood pressure, insulin-dependent diabetes, and heart conditions often result in one-year or even shorter certificates. When your certificate expires, you need a completely new exam. There’s no abbreviated renewal process. Keep copies of your previous exam paperwork, specialist letters, and compliance reports, because having them organized saves time and reduces the chance of delays at your next physical.