For the purposes outlined hereinabove in § 4-101 of this title the Commission may enter into commitments and agreements with the National Capital Planning Commission, or whatever other appropriate governmental agency as in the discretion of the Commission seems necessary. The Commission also may act in conjunction and cooperation with other representatives or officials of the United States government or of the District of Columbia or of the State of Maryland, including the Washington Suburban Sanitary Commission, or with other representatives or officials of Virginia or of Montgomery and Prince George's Counties or of any municipality or other local subdivision within these counties or within these states. All public officials of the State of Maryland and of the two counties upon request shall furnish to the Commission, within a reasonable time, available information and data it requires for its work.