Ala. Code § 31-2-15

The Governor shall, when necessary, designate a depository or depositories for the undistributed military property of the state, or in the custody of the state, which shall be maintained at the expense of the state. Any portion of any regular appropriation for the support of the Military Department and militia which is unexpended and unobligated after the expiration of the eleventh month of any fiscal year shall be available for use in building, rebuilding, repairing, enlarging, equipping, and maintaining a centrally located depository, arsenal, military warehouse, shop, and garage for the purposes named above and for the upkeep and repair of such property, and shall also be available for the payment of expenses and obligations of the Armory Commission of Alabama in carrying out its duties, or for providing necessary office furniture, equipment, or supplies for the headquarters and units of the Alabama National Guard, in accordance with priorities established by the Adjutant General.