7 CFR § 215.5 - Method of payment to States.
(1) Obtain funds needed to reimburse School Food Authorities and child-care institutions through presentation by designated State officials of a Payment Voucher on Letter of Credit (Treasury Form GFO 7578) in accordance with procedures prescribed by FNS and approved by the U.S. Treasury Department;
(2) Submit requests for funds only at such times and in such amounts as will permit prompt payment of claims;
(3) Use the funds received from such requests without delay for the purpose for which drawn. Notwithstanding the foregoing provisions, if funds are made available by Congress for the operation of the Program under a continuing resolution, Letters of Credit shall reflect only the amount available for the effective period of the resolution.
(c) The State agency shall release to FNS any Federal funds made available to it under the Program which are unobligated at the end of each fiscal year. Release of funds by the State agency shall be made as soon as practicable but in no event later than 30 days following demand by FNSRO, and shall be reflected by a related adjustment in the State agency's Letter of Credit.