The Secretary may, with the approval of the Governor, employ such persons to carry out the operation of such building, including the rental or lease or sale of rental or exhibition space of any portion of such building upon such terms and conditions as the Secretary shall determine. (Amended 1959, No. 329 (Adj. Sess.), § 18(a), eff. March 1, 1961; 1977, No. 152 (Adj. Sess.), § 2; 2003, No. 42, § 2, eff. May 27, 2003.)