Miss. Code § 7-7-25
Upon receipt of each purchase order filed with the State Fiscal Officer under the provisions of Section 7-7-23, the State Fiscal Officer shall, upon approval of such purchase order, make due entry of the same on the record of encumbrances, which shall be established in the General Accounting Office, showing separately thereon an account for each department, institution or other agency and the law authorizing the appropriation from which the same is to be paid, if from appropriated funds. Encumbrances so made and entered shall, until paid, be shown in the General Accounting Office's books of account so as to be used as a liability against the then cash balance of the particular fund which is applicable, whether general or special, and against the appropriation balance, if the encumbrance is to be paid from appropriated funds.
Miss. Code § 7-7-25