March 2, 2016 Oliver Hague Canada, Immigration Canada: Reminder - Visa-exempt nationals travelling to Canada to require Electronic Travel Authorization March 2, 2016 Oliver Hague Canada, Immigration As a reminder, visa-exempt nationals who plan to enter or exit and re-enter Canada by air on or after March 15, 2016 must apply for an Electronic Travel Authorization (eTA) prior to boarding a flight to Canada.