(b) Authority and duties. The Board shall have the authority and responsibility to review, comment upon, and recommend, consistent with this Code, rules and practices governing the procurement, management, control, and disposal of supplies, services, professional or artistic services, construction, and real property and capital improvement leases procured by the State. The Board shall also have the authority to recommend a program for professional development and provide opportunities for training in procurement practices and policies to chief procurement officers and their staffs in order to ensure that all procurement is conducted in an efficient, professional, and appropriately transparent manner. Upon a three-fifths vote of its members, the Board may review a contract. Upon a three-fifths vote of its members, the Board may propose procurement rules for consideration by chief procurement officers. These proposals shall be published in each volume of the Procurement Bulletin. Except as otherwise provided by law, the Board shall act upon the vote of a majority of its members who have been appointed and are serving.