Does a Canadian citizen who is a US permanent resident need a passport to enter Canada?

Does a Canadian citizen who is a US permanent resident need a passport to enter Canada? - Crop unrecognizable person demonstrating British passport

My dad was born in Canada and has been a permanent resident of the US for about 50 years (not a US citizen -- he's lazy). I don't think he has returned to Canada once since he started living in the US.

He is planning a trip to Canada and we are wondering if he needs a passport or if his Green Card is sufficient to exit/enter the US.

If he does need a passport, how can he obtain a passport while living outside the country? If it's a requirement that he be physically present in the country to apply for and obtain a passport, that will likely preclude the possibility of him going altogether?






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Does a Canadian citizen who is a US permanent resident need a passport to enter Canada? - From below of crop person holding national flag of United States of America waving in wind on street against city river
Does a Canadian citizen who is a US permanent resident need a passport to enter Canada? - Ethnic male in casual clothes and sunglasses standing on embankment of city river while leaning on fence showing national flag of United States of America
Does a Canadian citizen who is a US permanent resident need a passport to enter Canada? - Emotionless African American female with coffee to go wearing casual wear and protective face mask leaving underground station and looking away in New York City





Can a U.S. Permanent Resident Travel Internationally without a Valid Passport?




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