20 CFR 266.9: Responsibilities of a representative payee.

(a) A representative payee shall, subject to review by the Board and to such requirements as it may from time-to-time prescribe, apply the payments made to him or her on behalf of the annuitant only for the use and benefit of such annuitant, and in a manner and for purposes which are in the annuitant's best interests.

(b) A representative payee shall notify the Board of any event that will affect the amount of benefits the annuitant receives or the right of the annuitant to receive benefits.

(c) A representative payee shall notify the Board of any change in his or her circumstances that would affect performance of the payee responsibilities.