To assist the legislatures of Virginia, Maryland and Pennsylvania in evaluating and responding to problems of mutual concern relating to the Chesapeake Bay; to promote intergovernmental cooperation; to encourage cooperative coordinated resource planning and action by the signatories and their agencies; to provide, where appropriate, through recommendation to the respective legislature, uniformity of legislative application; to preserve and enhance the functions, powers and duties of existing offices and agencies of government; and to recommend improvements in the existing management system for the benefit of the present and future inhabitants of the Chesapeake Bay region.