Typically, whether you are in the US, Canada or the UK you need to inform your insurance company if your driving ability is currently impaired due to a medical condition. If after you have received your insurance policy, something occurs so that you become aware of a medical condition, of you or any driver on your policy, which may affect their ability to drive, the insurance company needs to be notified.

If the insurance company is not informed of this information, depending on the terms of your policy, they may be able to turn down claims if they were caused by driving issues resulting from your medical condition.

In the UK, some car insurers may not insure the driver with certain medical conditions until the driver has informed the Driver and Vehicle licensing Agency (DVLA). Once the DVLA has been informed and has given the driver permission to continue driving, insurance coverage will be available.

In the US, most states require you to tell the Department of Motor Vehicles of any medical condition that might affect your driving ability. While in Canada you must inform the Licensing Authority. You might need to bring medical information, letters from a doctor or take tests so that the agency that grants drivers licenses in your country allows you to keep your driving privileges.