American Passport with COPR, do I need an eTA to do landing?

[Akirahin1979]

Hi, my son has an American Passport with a valid COPR.
We are planning to do our landing as a family this month.
Do I need to apply eTA for my son as he can travel visa free into Canada?
Or can he travel without and eTA since he has a COPR?
Please help!

 

[APPNOV2014NY]

He can travel visa free on his US passport.

 

[Akirahin1979]

He can travel visa free on his US passport.

Thank you!