From March 15, visa-exempt foreign nationals planning to fly to or transit through Canada will require an Electronic Travel Authorization (eTA). U.S. citizens and travelers with valid visas are exempted. However, the entry requirements for traveling by land and sea have not been changed.
January 29, 2016 – Electronic Travel Authorization (eTA)
From March 15, visa-exempt foreign nationals planning to fly to or transit through Canada will require an Electronic Travel Authorization (eTA). U.S. citizens and travelers with valid visas are exempted. However, the entry requirements for traveling by land and sea have not been changed.