5 CFR §297.203

1. (a)A parent, legal guardian, or custodian of a minor, upon presentation of suitable personal identification, may access on behalf of a minor any record pertaining to the minor in a system of records maintained by the Office.
2. (b)A legal guardian, upon presentation of documentation establishing guardianship, may access on behalf of an individual declared to be incompetent by a court of competent jurisdiction, any record pertaining to that individual in a system of records maintained by the Office.
3. (c)Minors are not precluded from exercising personally those rights provided them by the Privacy Act.