Georgia Code Title 50. State Government § 50-26-12

(a) All or any part of the gross or net revenues and earnings derived from any particular loan or loans and any and all revenues and earnings received by the authority, regardless of whether such revenues and earnings were produced by a particular loan or loans for which bonds have been issued, may be pledged by the authority to the payment of the principal of and interest on bonds of the authority as may be provided in any resolution authorizing the issuance of such bonds or in any indenture or trust agreement pertaining to such bonds.

(b) Such funds so pledged, from whatever source received, may include funds received from one or more of all sources and may be set aside at regular intervals into sinking funds for which provision may be made in any such resolution or indenture or trust agreement, which sinking funds may be pledged to and charged with the payment of:

(c) The use and disposition of any sinking fund may be subject to regulations for which provision may be made in the resolution authorizing the issuance of the bonds or in the trust instrument or indenture securing the payment of the same.