How to live outside of US more than 180 days legally?

來源: 於 2007-07-23 10:25:56 [舊帖] [給我悄悄話] 本文已被閱讀：次

My son is studying in Canada and need to live there for another two years.

Can he submit some kind of application/form to get a permit to live outside
of US?

Thanks