15 C.F.R. § 80.2
(c) A legal guardian may obtain Census information relating to a ward by submitting a certified copy of the order of guardianship appointment.
(Approved by the Office of Management and Budget under control number 0607-0117)
[40 FR 53232, Nov. 17, 1975, as amended at 48 FR 56744, Dec. 23, 1983]