25 U.S.C. § 1917 : US Code - Section 1917: Tribal affiliation information and other information for protection of rights from tribal relationship; application of subject of adoptive placement; disclosure by court

Search 25 U.S.C. § 1917 : US Code - Section 1917: Tribal affiliation information and other information for protection of rights from tribal relationship; application of subject of adoptive placement; disclosure by court

Upon application by an Indian individual who has reached the age
of eighteen and who was the subject of an adoptive placement, the
court which entered the final decree shall inform such individual
of the tribal affiliation, if any, of the individual's biological
parents and provide such other information as may be necessary to
protect any rights flowing from the individual's tribal
relationship.