((a)) The regulations prescribed pursuant to shall provide procedures for the payment of an annuity under this subchapter in the case of—

((1)) a person for whom a guardian or other fiduciary has been appointed; and

((2)) a minor, mentally incompetent, or otherwise legally disabled person for whom a guardian or other fiduciary has not been appointed.

((b)) Those regulations may include the provisions set out in .

((c)) An annuity paid to a person on behalf of an annuitant in accordance with the regulations prescribed pursuant to subsection (a) discharges the obligation of the United States for payment to the annuitant of the amount of the annuity so paid.