Georgia Code Title 36. Local Government § 36-80-3

(1) Obligations of the United States and of its agencies and instrumentalities;

(2) Bonds or certificates of indebtedness of this state and of its agencies and instrumentalities; and

(3) Certificates of deposit of banks which have deposits insured by the Federal Deposit Insurance Corporation; provided, however, that that portion of such certificates of deposit in excess of the amount insured by the Federal Deposit Insurance Corporation shall be secured by direct obligations of this state or the United States which are of a par value equal to that portion of such certificates of deposit which would be uninsured.