(a) All demand funds held by any department, board, bureau, or other agency of the state shall be deposited in state depositories, except the monthly deposits of funds for current operating expenses may be deposited in a foreign bank by any department, board, bureau, or other agency of the state which has a foreign office, provided that the department, board, bureau, or other agency of the state limits its operating deposits in foreign banks to conform to guidelines and dollar limitations prescribed by the State Depository Board; and such funds that are in excess of requirements for current operating expenses shall be placed under time deposit agreements by the state treasurer conforming to interest contracts then having approval of the board made pursuant to Code Section 50-17-52; and any funds not deposited or placed under time deposit agreements shall be subject to immediate withdrawal on order of the state treasurer when directed by the board. The board may permit any department, board, bureau, or other agency to invest funds collected directly by that department, board, bureau, or agency in short-term time deposit agreements, provided the interest income of those funds is remitted to the state treasurer as revenues of the state.

(b) All departments, boards, bureaus, and other agencies of the state shall report to the board, on such forms and at such times as the board may prescribe, such information as the board may reasonably require concerning deposits and withdrawals pursuant to this Code section and shall enable the board to determine compliance with this Code section. Interest earned on state funds withdrawn from the state treasury on approved budgets shall be remitted to the Office of the State Treasurer by each department, board, bureau, or agency and placed in the general fund. The board may permit the state treasurer to invest in any one or more of the following: bankers' acceptances; commercial paper; bonds, bills, certificates of indebtedness, notes, or other obligations of the United States and its subsidiary corporations and instrumentalities or entities sanctioned or authorized by the United States government including, but not limited to, obligations or securities issued or guaranteed by Banks for Cooperatives regulated by the Farm Credit Administration, the Commodity Credit Corporation, Farm Credit Banks regulated by the Farm Credit Administration, Federal Assets Financing Trusts, the Federal Financing Bank, Federal Home Loan Banks, the Federal Home Loan Mortgage Corporation, the Federal National Mortgage Association, the Financial Assistance Corporation chartered by the Farm Credit Administration, the Government National Mortgage Association, the Import-Export Bank, Production Credit Associations regulated by the Farm Credit Administration, the Resolution Trust Corporation, and the Tennessee Valley Authority; obligations of corporations organized under the laws of this state or any other state but only if the corporation has a market capitalization equivalent to $100 million; provided, however, that such obligation shall be listed as investment grade by a nationally recognized rating agency; bonds, notes, warrants, and other securities not in default which are the direct obligations of the government of any foreign country which the International Monetary Fund lists as an industrialized country and for which the full faith and credit of such government has been pledged for the payment of principal and interest, provided that such securities are listed as investment grade by a nationally recognized rating agency; or obligations issued, assumed, or guaranteed by the International Bank for Reconstruction and Development or the International Financial Corporation, provided that such securities are listed as investment grade by a nationally recognized rating agency; provided, however, that interest earned on the investment of motor fuel tax revenues shall be defined as motor fuel tax revenues and shall be appropriated in conformity with and pursuant to Article III, Section IX, Paragraph VI(b) of the Constitution of Georgia. The board may also permit the state treasurer to lend any of the securities of the type identified in this subsection subject to the limitations of subsection (b) of Code Section 50-5A-7 and this chapter.