The term American Indian born in Canada as used in section 289 of the Act includes only persons possessing 50 per centum or more of the blood of the American Indian race. It does not include a person who is the spouse or child of such an Indian or a person whose membership in an Indian tribe or family is created by adoption, unless such person possesses at least 50 per centum or more of such blood.

Any American Indian born in Canada who at the time of entry was entitled to the exemption provided for such person by the Act of April 2, 1928 (45 Stat. 401), or section 289 of the Act, and has maintained residence in the United States since his entry, shall be regarded as having been lawfully admitted for permanent residence. A person who does not possess 50 per centum of the blood of the American Indian race, but who entered the United States prior to December 24, 1952, under the exemption provided by the Act of April 2, 1928, and has maintained his residence in the United States since such entry shall also be regarded as having been lawfully admitted for permanent residence. In the absence of a Service record of arrival in the United States, the record of registration under the Alien Registration Act, of 1940 (54 Stat. 670; 8 U.S.C. 451), or section 262 of the Act, or other satisfactory evidence may be accepted to establish the date of entry.

The lawful admission for permanent residence of an American Indian born in Canada shall be recorded on Form I-181.