Originally Posted by
s0ssos
When you say "you", you mean "a person"? Or a particular group of people? US people don't need ETA for Canada.
As far as I am aware of, the U.S is the only passport exempt from the ETA in the world, with British Passports needing the ETA. However, the rules might have changed from last time I checked, so feel free to correct me if I am wrong.