A state court entering a final decree or order in an Indian child adoptive placement shall provide the Department of Human Services and the child's tribal social services agency with a copy of the decree or order together with such other information to show:
(1) the name and tribal affiliation of the child;
(2) the names and addresses of the biological parents;
(3) the names and addresses of the adoptive parents; and
(4) the identity of any agency having files or information relating to the adoptive placement.
If the court records contain an affidavit of the biological or adoptive parent or parents requesting anonymity, the court shall delete the name and address of the biological or adoptive parents from the information sent to the child's tribal social services agency.
Upon the request of an adopted Indian person over the age of 18, the adoptive or foster parents of an Indian person, or an Indian tribal social services agency, the Department of Human Services shall disclose to the Indian person's tribe information necessary for membership of an Indian person in the tribe in which the person may be eligible for membership or for determining any rights or benefits associated with that membership. When the documents relating to the person contain an affidavit from the biological or adoptive parent or parents requesting anonymity, the department must use the procedures described in United States Code, title 25, section 1951, paragraph (b).