(a) In preparing and making a plan and in exercising the zoning, planning, subdivision control, and other powers granted to the Commission under this division, the Commission may act in conjunction and cooperation with the National Capital Planning Commission. (b) The Commission is the representative of the State to the National Capital Planning Commission. (c) For the purposes described in subsection (a) of this section, the Commission may enter into commitments and agreements with the National Capital Planning Commission as the Commission considers necessary. (d) The Commission may act in conjunction and cooperation with other representatives or officers of the United States government or of the District of Columbia or of this State, including the Department of Planning and the Washington Suburban Sanitary Commission, or of the Commonwealth of Virginia or of Montgomery County or Prince George’s County or of any district, municipal corporation, or other political subdivision in these states or counties.