FSH 6509.13b - IMPREST FUND PAYMENTS HANDBOOK 5/79 R1 SUPPLEMENT 24 0701.23C - Payment by Cashier 6. (Third paragraph) Cashier's Social Security Number. Travel advances made by an alternate cashier during a temporary absence (15 days or less) of the principal cashier, when the fund has not been officially transferred to the alternate, shall be documented on the AD-615, Application for Advance of Funds, using the principal's social security number, not the alternate's. If the fund is officially transferred, then use the alternate's social security number. Cashier's Signature. The alternate cashier will sign his or her name on the AD-615 even though using the principal's social security number during temporary absences of the principal cashier. 0704.1 - Return of Part of Balance. Return of cash to the Disbursing Officer in the form of money orders, cashier's checks, bank drafts, or endorsed Treasury checks will be done by use of "RETURN RECEIPT REQUESTED" mail to insure acknowledgement of delivery. Endorsing of uncashed checks will be done as prescribed in sectin 0306 of Treasury Manual.