(2) To this end not more than one district may be established under this chapter in any metropolitan area.
(3) Subject to the provisions of a district charter, a district, where formed, shall provide for those aspects of land use planning having metropolitan significance. [1969 c.700 §3; 1975 c.510 §1; 1977 c.95 §16; 1977 c.665 §3; 1977 c.782 §3; 1997 c.833 §5]