12 CFR 229.32 - Depositary bank's responsibility for returned checks.
(iii) If the address in the indorsement is not in the same check processing region as the address associated with the routing number of the bank in its indorsement on the check, at a location consistent with the address in the indorsement and at a branch or head office associated with the routing number in the bank's indorsement; or
(b) Payment. A depositary bank shall pay the returning or paying bank returning the check to it for the amount of the check prior to the close of business on the banking day on which it received the check (“payment date”) by -
(3) Wire transfer; or
(4) Any other form of payment acceptable to the returning or paying bank;
(c) Misrouted returned checks and written notices of nonpayment. If a bank receives a returned check or written notice of nonpayment on the basis that it is the depositary bank, and the bank determines that it is not the depositary bank with respect to the check or notice, it shall either promptly send the returned check or notice to the depositary bank directly or by means of a returning bank agreeing to handle the returned check expeditiously under § 229.31(a), or send the check or notice back to the bank from which it was received.