The parent or guardian of a minor or a person judicially determined to be incompetent must, in addition to establishing the identity of the minor or other person represented, establish parentage or guardianship by furnishing a copy of a birth certificate showing parentage or a court order establishing the guardianship and may thereafter, act on behalf of such individual. (See5 U.S.C. 552a(h) .)
31 C.F.R. §1.34