O.C.G.A. § 20-2-919

Any amounts held by the health insurance fund which are available for investment shall be paid over to the Office of the State Treasurer. The state treasurer shall deposit such funds in a trust account for credit only to the health insurance fund. The state treasurer shall invest these health insurance funds subject to the limitations of Code Section 50-5A-7 and Chapter 17 of Title 50. All income derived from such investments shall accrue to the health insurance fund. When moneys are paid over to the Office of the State Treasurer, as provided in this Code section, the commissioner shall submit an estimate of the date such funds shall no longer be available for investment. When the commissioner wishes to withdraw funds from the trust account provided for in this Code section, he or she shall submit a request for such withdrawal, in writing, to the state treasurer.