If the Council has adopted a plan for the region: (1) a governmental unit in the region may not adopt a plan, or amendment to a plan, having a regional impact until the plan is referred to the Council for its consideration, review, and recommendations; and (2) a road, park, public way, public building, or other development that is regional in nature or affects an area greater than a single unit of government may not be constructed or authorized in the region until the proposed location and its extent are referred to the Council for consideration, review, and recommendations.
Maryland Legal Code