There is established a separate special trust fund in the State Treasury to be known as the Alabama State Board of Respiratory Therapy Fund. All funds received by the board shall be deposited into the fund and shall be expended only to implement and administer this chapter. No monies shall be withdrawn or expended from the fund for any purpose unless the monies have been appropriated by the Legislature and allocated pursuant to this chapter. Any monies appropriated shall be budgeted and allocated pursuant to the Budget Management Act in accordance with Article 4, commencing with Section 41-4-80, of Chapter 4 of Title 41, and only in the amounts provided by the Legislature in the general appropriations act or other appropriations act. Funds shall be disbursed only upon a warrant of the state Comptroller upon itemized vouchers approved by the chair. After the first three full fiscal years from May 17, 2004, and every three years thereafter, if a surplus of funds exists which is greater than two years’ operating expense, the funds shall be distributed to the General Fund.