The proceeds from the bonds issued by the Alabama Public Historical Sites and Parks Improvement Corporation and interest income thereon shall be appropriated as follows:
(a) Three million dollars ($3,000,000) of the proceeds and interest thereon shall be used for the acquisition, improvement, renovation, equipping and maintenance of state-owned public historical sites and public historical parks not under the jurisdiction of the Department of Conservation and Natural Resources.
(b) Three million dollars ($3,000,000) for the acquisition, improvement, renovation, equipping, and maintenance of publicly-owned historical sites, public parks, and public historical parks not under the jurisdiction of the Department of Conservation and Natural Resources, provided that the corporation may provide up to one third of this amount for the acquisition, improvement, renovation, equipping, and maintenance of publicly-owned historical sites and historical parks operated by public corporations under Section 16-44A-31 et seq., which are not under the jurisdiction of the Department of Conservation and Natural Resources.