Can a Medical Condition Stop You From Getting a Licence in Ontario?

Can a Medical Condition Prevent You From Getting a Driver’s Licence in Ontario?

Yes — Ontario law allows the Registrar of Motor Vehicles to refuse a driver’s licence if a medical condition significantly interferes with a person’s ability to drive safely. The Licence Appeal Tribunal (LAT) has the power to review those refusals, but it will uphold them when the medical evidence supports the decision.

In O’Connor v. Registrar of Motor Vehicles, 2026 CanLII 74075 (ON LAT), the Tribunal considered whether alcohol use disorder and the use of acamprosate justified the Registrar’s refusal to issue a licence. The Tribunal dismissed the appeal, finding the refusal was supported by the evidence.

What Is the Licence Appeal Tribunal and What Does It Do?

The Licence Appeal Tribunal is an independent adjudicative body in Ontario that hears appeals from people whose licences have been refused, suspended, or cancelled. When the Registrar of Motor Vehicles makes a medical decision about your licence, you have the right to challenge it at the LAT.

The Tribunal does not simply rubber-stamp the Registrar’s decisions. It reviews the medical evidence, considers submissions from both sides, and makes its own findings. However, the applicant must show that they meet the standard for safe driving — the burden is not on the Registrar to prove the opposite.

What Role Does Medical Evidence Play in Licence Decisions?

Medical evidence is the foundation of any fitness-to-drive dispute at the LAT. The Tribunal relies on reports from treating physicians, specialists, and sometimes independent medical assessors to determine whether a condition poses a real risk behind the wheel.

In cases involving alcohol use disorder, the Tribunal looks at factors such as the history and severity of the condition, the current stage of recovery, compliance with treatment, and any medication being taken. Acamprosate, the medication at issue in this case, is prescribed to help people maintain sobriety — but its presence in a person’s treatment plan still forms part of the overall medical picture the Tribunal must assess.

Does Taking Medication for Alcohol Use Disorder Disqualify You From Driving?

Not automatically — but medication use is a relevant factor the Tribunal will consider alongside the underlying condition. The question is always whether the full medical picture, including the condition and its treatment, significantly interferes with the ability to drive safely.

Some medications used in addiction treatment can have side effects relevant to driving, such as effects on concentration or reaction time. The Tribunal will weigh the medical evidence about those effects and consider whether the person’s overall condition has stabilized to a degree that makes safe driving possible.

How Does the Tribunal Decide Whether Someone Can Drive Safely?

The Tribunal applies a standard focused on whether the person’s condition significantly interferes with their ability to operate a motor vehicle safely. This is a practical, evidence-based test — not a moral judgment about a person’s character or choices.

The Tribunal considers the totality of the medical record: diagnosis, treatment history, current functioning, and any expert opinions about driving fitness. If the evidence shows meaningful risk, the Tribunal will uphold a refusal even if the applicant is making genuine efforts toward recovery. The safety of the public on Ontario roads is the paramount concern.

What Can You Do If Your Licence Has Been Refused on Medical Grounds?

If the Registrar of Motor Vehicles has refused your licence for medical reasons, you have the right to appeal to the Licence Appeal Tribunal. Acting quickly matters — there are deadlines for filing an appeal, and gathering strong medical evidence takes time.

You should obtain updated medical reports from your treating physicians that speak directly to your fitness to drive. If your condition has improved since the Registrar’s decision, that evidence needs to be placed before the Tribunal clearly and persuasively. Our Ontario motor vehicle accident lawyers regularly work with clients navigating complex licence and driving-related legal issues, and can help you understand your options.

Practical Takeaways for Drivers Facing a Medical Licence Refusal

• Act within the deadline. Appeals to the Licence Appeal Tribunal must be filed within a set time after the Registrar’s decision — missing that window can cost you your right to appeal.
• Get updated medical evidence. Stale reports won’t help. Ask your doctor to provide a current assessment that speaks specifically to your ability to drive safely.
• Understand what the Tribunal is looking for. The key question is whether your condition significantly interferes with safe driving — not whether you have a diagnosis.
• Treatment and recovery matter. Evidence of consistent treatment, medication compliance, and stability in your condition can all support your appeal.
• Consider legal help early. Licence appeal hearings involve legal argument and medical evidence — having experienced representation can make a real difference in the outcome.

If you are dealing with a licence refusal or suspension connected to a medical condition, or if you have been injured in a collision and need help with accident benefits or other claims, UL Lawyers offers a free initial consultation from our Burlington office and serves clients across Ontario. Reach out to speak with a member of our team about your situation.

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This article is automated commentary on a public court decision and is for general information only — not legal advice. Decisions rely on facts unique to each case. If you are affected by a similar issue, contact a lawyer for advice specific to your situation.