The provisions of this Chapter shall not apply to parish and municipal governments and agencies, or to any state retirement system or to any state agency not included in the executive operating budget which under authority of the constitution operates preponderantly from fees and charges for the shipment of goods in international maritime trade and commerce.  Provided, however, that all provisions contained in this Chapter shall not be in conflict with any existing Federal laws or regulations governing the receipt, deposit, investment or withdrawal of Federal funds.

Acts 1972, No. 341, §4.