Under 22 CFR 42.1- Aliens not required to obtain immigrant visas, section (f) American Indians born in Canada.
(8 CFR section, 289.2 ) Lawful admission for permanent residence(has maintained residence in the United States since his entry, shall be regarded as having been lawfully admitted for permanent residence.
Problem is, if you go to DMV to exchange your licence to another State, you must show permanent residence card, (Green Card)
Yet the law states that if you have lived in the United States and have a A# number there should be no problem, yet, this is a conflict between the two . Why? No Green Cards in Border Crossings, none needed.