Yes, you can pass a DOT physical with one eye and drive a commercial motor vehicle in interstate commerce. Since March 22, 2022, the Federal Motor Carrier Safety Administration has offered an alternative vision standard under 49 CFR 391.44 that gives monocular drivers a permanent path to qualification, replacing the old case-by-case exemption program.1Federal Register. Qualifications of Drivers; Vision Standard The process adds one appointment to the usual physical, and the medical certificate you receive lasts 12 months instead of 24.
What Your Better Eye Has to Meet
The alternative standard applies if your worse eye can’t meet the distant visual acuity standard with corrective lenses, the field-of-vision standard, or both. That covers complete blindness in one eye, a prosthetic eye, or an eye that simply can’t be corrected to 20/40.2eCFR. 49 CFR 391.44 – Physical Qualification Standards for an Individual Who Does Not Satisfy, With the Worse Eye, Either the Distant Visual Acuity Standard With Corrective Lenses or the Field of Vision Standard, or Both
Your better eye has to carry the qualification on its own. It must have at least 20/40 distant visual acuity (with or without corrective lenses), at least 70 degrees of horizontal field of vision, and the ability to recognize standard red, green, and amber traffic signals. You also have to meet every other physical qualification standard that applies to all commercial drivers, from blood pressure to hearing to medication use.
Vision Stability and Adaptation
The rule adds one more requirement that catches drivers off guard: your vision deficiency has to be stable, and enough time has to have passed for you to adapt to and compensate for the change.1Federal Register. Qualifications of Drivers; Vision Standard The FMCSA deliberately did not set a fixed waiting period. Your eye specialist makes the call based on your clinical picture and history.
Research the FMCSA cited during rulemaking gives a rough sense of the timeline. A 2002 study found people who lost vision suddenly needed about 8.8 months on average to adapt, while those with gradual vision loss averaged about 3.6 months. If you’ve been monocular since birth or early childhood, adaptation is essentially a non-issue. If you recently lost vision in one eye due to injury or surgery, expect the specialist to weigh that carefully.
The Qualification Process
Qualifying under the alternative standard means two appointments rather than one.
Vision Evaluation First
A licensed ophthalmologist or optometrist performs a comprehensive vision evaluation and fills out Form MCSA-5871, the Vision Evaluation Report.3Federal Motor Carrier Safety Administration. Vision Evaluation Report, Form MCSA-5871 The form documents acuity in each eye, field of vision, color recognition, the nature and cause of your vision deficiency, when it became stable, and the specialist’s opinion on whether you’ve had sufficient time to adapt. It also asks the specialist to state, in their professional judgment, whether you can safely operate a commercial motor vehicle with your current vision.
DOT Physical Within 45 Days
You bring the completed Form MCSA-5871 to a medical examiner listed on the FMCSA’s National Registry. The examiner must begin the physical within 45 calendar days of the date your eye specialist signed the form. Miss that window and you’ll need a new vision evaluation.2eCFR. 49 CFR 391.44 – Physical Qualification Standards for an Individual Who Does Not Satisfy, With the Worse Eye, Either the Distant Visual Acuity Standard With Corrective Lenses or the Field of Vision Standard, or Both
The examiner reviews the specialist’s report along with the rest of your physical. Using independent medical judgment, the examiner decides whether you meet the alternative vision standard. If you pass, you receive a Medical Examiner’s Certificate marked as certified with a medical variance.4Federal Motor Carrier Safety Administration. DOT Medical Exam and Commercial Motor Vehicle Certification
The First-Time Road Test
Passing the physical isn’t the last step for a first-time qualifier. Before you can drive commercially, your employer has to administer a road test under 49 CFR 391.31.1Federal Register. Qualifications of Drivers; Vision Standard The medical examiner has no role in this part. The test is between you and the motor carrier that plans to put you behind the wheel, and it has to be given by someone competent to evaluate your driving with the specific type of vehicle you’ll be assigned. If you pass, the employer issues a certificate of road test and keeps the original in your driver qualification file.5eCFR. 49 CFR 391.31 – Road Test
Three situations waive the road test. If your employer can confirm you held a valid license and actually drove a commercial motor vehicle in intrastate commerce (or certain excepted interstate commerce) with your vision deficiency for the three years immediately before your first qualification under the alternative standard, you’re exempt. You’ll certify in writing when your vision deficiency began. Two other waivers cover drivers who held a valid FMCSA vision exemption or were certified under the older vision waiver study as of March 22, 2022, but those legacy groups are shrinking and the grandfathering provision was formally removed as of March 23, 2026.6Federal Register. Qualifications of Drivers; Vision Standards Grandfathering Provision
You Recertify Every Year, Not Every Two
A standard medical certificate lasts up to 24 months. A certificate issued under the alternative vision standard maxes out at 12.7eCFR. 49 CFR 391.45 – Persons Who Must Be Medically Examined and Certified Every year you’ll repeat the two-step process: a fresh Form MCSA-5871 from your eye specialist, then a full DOT physical within 45 days. The road test is a one-time requirement, so renewals don’t trigger another one. But if your vision has changed significantly, your specialist may not be able to sign off on stability, and that can delay recertification.
Interstate Only, and Employers Can Say No
Two boundaries are worth knowing before you start scheduling appointments.
The FMCSA rule governs interstate commerce. If you drive only within a single state, your state’s own medical qualification rules apply. The 2022 final rule explicitly says “nothing in this document preempts any State law or regulation.”1Federal Register. Qualifications of Drivers; Vision Standard Many states adopt the federal standard, but some don’t. Check with your state DMV or transportation agency before assuming you’re covered.
Passing the DOT physical also doesn’t guarantee a job. Federal regulations set minimum standards, and employers are free to impose stricter ones.8eCFR. Part 391 Qualifications of Drivers and Longer Combination Vehicle (LCV) Driver Instructors Some carriers decline to hire monocular drivers as a matter of internal safety or insurance policy, even though those drivers are federally qualified. Others hire them without hesitation. Ask about a carrier’s vision policy before you spend on the specialist evaluation and physical.
What It Costs
A standard DOT physical typically runs $50 to $150 depending on the provider, with urgent care clinics and chiropractors on the lower end and private medical practices higher. Health insurance usually doesn’t cover it, though HSAs and FSAs can. Under the alternative vision standard, budget for the eye specialist appointment on top of the physical; your eye doctor’s office can quote that in advance. If your employer also requires drug testing, add $30 to $85. Plan to absorb these costs every year rather than every two, since the certificate expires after 12 months.