How Ontario's Medical Review Process Works

Ontario's Ministry of Transportation (MTO) can suspend your driver's license if you have a medical condition that makes driving unsafe. This is not a punishment — it is a safety measure. The MTO does not decide this on its own. A doctor, an eye specialist, or a report from a hospital or police officer triggers a review, and then MTO staff assess whether your condition meets their suspension criteria.

The suspension happens in stages. First, the MTO receives medical information about you. This might come from your own doctor, a specialist, a hospital after an accident or emergency visit, or law enforcement. The MTO then sends you a letter asking you to undergo a medical examination by a doctor they approve. If that examination shows your condition makes you unsafe to drive, the MTO issues a suspension notice. You do not lose your license when ready in most cases — you get a notice period, usually 30 days, before the suspension takes effect.

The key difference between a medical suspension and other suspensions is that you can end it. You cannot straightforward wait out the clock. You have to show the MTO that your condition has improved or been managed well enough that you are safe to drive again.

Key Takeaways

  • The MTO suspends licenses based on medical reports from doctors, hospitals, or police, not on a list of diagnoses — your specific condition and how it affects your ability to drive matters.
  • You will receive a notice letter before the suspension takes effect, giving you time to seek a medical examination or appeal if you disagree.
  • To have your license restored, you must provide medical documentation showing your condition is controlled or improved, often from your own doctor or a specialist.
  • Some conditions require a formal MTO medical examination; others may be resolved with a letter from your treating physician.
  • If you drive while suspended for medical reasons, you face fines, a longer suspension, and possible criminal charges.

Common Medical Reasons for Suspension in Ontario

The MTO does not publish a fixed list of conditions that automatically suspend a license. Instead, they assess whether a condition — whatever it is — affects your ability to operate a vehicle safely. That said, certain categories appear regularly in suspensions.

Seizure disorders are among the most common. If you have had a seizure, the MTO will suspend your license until you have been seizure-free for a period set by your neurologist and approved by MTO medical staff. The length varies: some people are cleared after three months of no seizures; others must wait longer depending on medication changes or the type of seizure.

Cardiac events — heart attacks, arrhythmias, or conditions requiring pacemakers — also trigger suspensions. You will need clearance from a cardiologist before the MTO will consider restoring your license. Stroke or transient ischemic attack (TIA) suspensions follow a similar path: you need medical documentation that you have recovered enough to drive safely.

Vision loss from any cause — diabetic retinopathy, macular degeneration, cataracts, or eye surgery — can result in suspension if your vision falls below MTO standards. An eye specialist's report is required to restore the license. Sleep disorders like untreated sleep apnea also trigger suspensions because they impair alertness. Cognitive conditions, including dementia or significant memory loss, may lead to suspension if they affect judgment or reaction time.

Mental health crises, medication changes, or substance use issues can also result in suspension. The MTO's concern is not the diagnosis itself but whether the condition or its treatment affects your ability to drive safely right now.

What Happens When You Receive a Suspension Notice

When the MTO sends you a medical suspension notice, the letter will explain why they are suspending your license and what you need to do next. Read it carefully — it contains important date and instructions specific to your situation.

In most cases, you have 30 days from the date of the letter before the suspension takes effect. During this time, you can take action. You can request a medical examination by an MTO-approved doctor, or you can provide medical documentation from your own doctor showing that your condition does not make you unsafe to drive. Some people choose to do both.

If you disagree with the suspension entirely, you can request a hearing before the Licence Appeal Tribunal (LAT). This is a formal process, and you will need to present medical evidence supporting your position. The hearing usually happens within a few months. You do not need a lawyer, but many people find one helpful because the process is formal and the stakes are high.

If you do nothing and let the suspension take effect, your license will be suspended. You can still drive during the 30-day notice period. Once the suspension is active, driving is illegal, and you will face penalties.

How to Get Your License Back

Restoring a medically suspended license requires medical proof that you are safe to drive. The exact process depends on your condition and what the MTO's original suspension letter said.

Start by contacting your doctor or the specialist treating your condition — your cardiologist, neurologist, eye doctor, or psychiatrist, depending on what caused the suspension. Explain that the MTO has suspended your license and ask what documentation they can provide. Some doctors will write a letter stating that your condition is controlled and you are safe to drive. Others will ask you to wait a certain amount of time (for example, three months seizure-free) before they will provide that letter.

Once you have the medical documentation, send it to the MTO's Medical Review Unit. The address will be in your suspension notice. Include a cover letter explaining that you are requesting restoration of your license and that your condition has improved. Keep a copy for your records.

The MTO will review what you have sent. In some cases, they will accept your doctor's letter and restore your license. In others, they will ask you to undergo an examination by an MTO-approved physician. This examination is at no cost to you, but you must attend. If you miss the appointment, the MTO may extend your suspension.

The entire process — from sending in your medical documentation to receiving a decision — typically takes four to eight weeks, though it can be faster or slower depending on the MTO's workload and the complexity of your case.

The MTO Medical Examination: What to Expect

If the MTO asks you to attend a medical examination, you will receive a letter with the date, time, and location. The examination is conducted by a doctor approved by the MTO, not by your own physician. The doctor will review your medical history, ask about your condition and any medications you take, and perform a physical or cognitive assessment relevant to your situation.

For a cardiac suspension, the doctor might ask about chest pain, shortness of breath, and medication side effects. For a seizure suspension, they will ask about the frequency and type of seizures and whether you are taking medication as prescribed. For a vision suspension, they may test your visual acuity and peripheral vision. For cognitive concerns, they may ask questions to assess memory and judgment.

The examination usually takes 30 to 60 minutes. You can bring medical records or a summary from your treating doctor. Some people bring a family member for support, though the doctor may ask them to wait in the reception area during the examination itself.

After the examination, the doctor sends a report to the MTO. The MTO then decides whether to restore your license, extend the suspension, or ask for additional information. You will receive a letter with their decision.

Driving While Your License Is Suspended for Medical Reasons

Driving while your license is suspended for medical reasons is illegal in Ontario. The penalties are serious and escalate if you are caught more than once.

A first offense carries a fine of $500 to $1,000 and a possible jail sentence of up to six months. If you are caught a second time within five years, the fine increases to $1,000 to $2,000 and jail time up to six months. A third offense within five years can result in a fine up to $2,000 and jail time up to six months.

Beyond the legal penalties, driving while suspended puts you and others at risk. If you are involved in an accident and it is discovered that you were driving on a suspended license, your insurance may deny your claim. You could be held personally liable for all damages and injuries. If someone is injured or killed, you could face criminal charges beyond the suspension violation itself.

If you need to drive during the suspension period — for medical appointments, for work, or for other essential reasons — you have limited options. You cannot get a restricted license for a medical suspension. You can use a taxi, rideshare service, public transit, or ask someone else to drive. Some employers offer accommodations or temporary work-from-home arrangements. If you are facing genuine hardship, contact your local MTO office to discuss your situation; they cannot override the suspension, but they may be able to expedite your medical review if circumstances warrant it.

Appealing a Medical Suspension

If you believe the MTO's decision to suspend your license is wrong, you can request a hearing before the Licence Appeal Tribunal (LAT). This is a formal appeal process, separate from the MTO.

To request a hearing, you must submit a written request to the LAT within a specific timeframe — usually 30 days from the date of the MTO's suspension notice, though the exact important date will be stated in your letter. You can request the hearing yourself or hire a lawyer to do it for you.

At the hearing, you will have the opportunity to present evidence and testimony. You can bring your doctor or specialist to testify about your condition and your ability to drive safely. The MTO will also present evidence. A tribunal member will listen to both sides and make a decision.

The hearing process takes time — usually several months from request to decision. During this time, your license remains suspended unless the tribunal grants you a stay (a temporary lifting of the suspension while the appeal is pending). A stay is not automatic; you have to request it and show that you have a strong case and that the suspension is causing you undue hardship.

If you win the appeal, the MTO must restore your license. If you lose, the suspension remains in effect, and you will need to follow the standard restoration process outlined above.

Frequently Asked Questions

Can I drive to a medical appointment if my license is suspended for medical reasons?

No. A medical suspension means you cannot drive for any reason, including to attend medical appointments. You must use alternative transportation. If you need to attend a critical appointment, contact your MTO office to ask whether they can expedite your medical review or provide guidance on your specific situation.

How long does a medical suspension usually last?

It depends on your condition and how quickly you can provide medical documentation showing improvement. Some suspensions are lifted within weeks if your doctor confirms you are safe to drive. Others last several months if your condition requires a waiting period (such as being seizure-free for three months) or if the MTO needs to conduct an examination. There is no fixed timeline.

Will a medical suspension show up on my driving record?

Yes. A medical suspension is recorded on your driving abstract. It will appear if you request a copy of your record or if an insurance company or employer checks it. Once your license is restored, the suspension remains on your record as a historical entry, though it does not affect your ability to drive going forward.

What if my doctor says I am safe to drive but the MTO disagrees?

This disagreement can happen. The MTO's medical reviewer may have concerns that your doctor did not address, or they may interpret the same medical information differently. If this occurs, you can request a hearing before the Licence Appeal Tribunal. Bring your doctor's letter and, if possible, have your doctor attend the hearing to explain their assessment. The tribunal will weigh the evidence and make a decision.

Can I get a restricted license while my medical suspension is in place?

No. Medical suspensions do not allow for restricted licenses. You either have a full license or you do not. Once your condition improves and the MTO lifts the suspension, you will have your full license back with no restrictions related to the medical issue.