At the request of the governing body of any local government, the Department is authorized to direct the State Treasurer to market such local government’s security offerings by preparing bond issues for sale, advertising for sealed bids, receiving bids at its offices, and making the award to the bidder that offers the most favorable terms. The State Treasurer may, at his discretion, offer for concurrent sale the bonds of several local governments. State sale of a local security offering under this Section shall in no way imply State guarantee of such debt issue.