In contracts, further providing for regulation of contracts; in contracts, further providing for contracts or purchases in excess of base amount of $18,500, for contracts or purchases not in excess of base amount of $18,500, for contracts or purchases not requiring advertising or bidding, for evasion of advertising requirements and for separate bids for plumbing, heating, ventilating and electrical work, elevators and escalators; in general provisions relating to area government and intergovernmental cooperation, further providing for bids for certain joint purchases, for written or telephonic price quotations required and for division of transactions provided; in parking authorities, further providing for competition in award of contracts; in municipal authorities, further providing for competition in award of contracts; and making an editorial change.