Miss. Code Ann. § 37-65-3

The decision or determination to close any one or more of the schools, colleges or institutions of higher learning as provided in Section 37-65-1, shall be effectuated and evidenced by a proclamation of the governor of the State of Mississippi, which shall be effective upon his execution or issuance thereof, and such schools, colleges, or institutions of higher learning closed according to the provisions of this article shall remain so closed until said governor shall execute or issue a further proclamation opening same. The use by said governor of the power vested in him by the terms of this article may be exercised from time to time as, in his discretion, he may deem necessary for any or all of the purposes specified in Section 37-65-1 and any proclamation of closure need not specify the period of time during which such closure shall be effective.