(1) There is hereby created in the state treasury the capitol commission operating fund. The fund shall be used to support the operation, activities and projects of the capitol commission, shall be managed by the state treasurer and shall consist of the following: Transfers approved by the capitol commission from the capitol maintenance reserve fund for the operation, activities and projects of the capitol commission;
(2) All interests earned on the capitol commission operating fund; and
(3) All other proceeds either public or private approved by the legislature for the purposes of this act.
(4) All moneys in the capitol commission operating fund shall be subject to annual appropriation by the legislature. All moneys shall be appropriated exclusively for the purposes of this chapter, retained for future appropriation, or transferred to the capitol endowment permanent fund [capital permanent endowment fund] by legislative appropriation.