(a) In the resolution or order authorizing issuance of bonds, the board may make additional covenants with respect to the bonds and the pledged revenues and may provide for the flow of funds and the establishment, maintenance, and investment of funds.
(b) The funds established may include an interest and sinking fund, a reserve fund, and other funds that will be kept and maintained by or under the direction of the board.

(c) Any funds established by the board are not to be part of the state treasury but, at the direction of the board, may be kept and held in escrow and in trust by the state treasury on behalf of the authority and the owners of the bonds and used only as provided by this chapter.
(d) Money in the funds shall be invested in authorized investments as provided by any bond resolutions and orders of the authority.
(e) Legal title to money in any fund is in the authority unless or until paid from the fund as provided by this chapter or the resolutions or orders authorizing the authority’s bonds.
(f) The comptroller, as custodian of any of the funds, shall administer the funds solely and strictly as provided by this chapter and the resolutions or orders authorizing the bonds, and the state may not take any other action relating to any of those funds except those specified in this chapter and the resolutions and orders authorizing the bonds.