Amends GS 120-32.6(b) (General Assembly acting on behalf of the State in certain actions) providing that the Speaker of the House and President Pro Tempore of the Senate, as agents of the state through the General Assembly, are necessary parties to any action in State or federal court challenging the validity or constitutionality of an action of the General Assembly, part of a law enacted by the General Assembly, a rule adopted pursuant to an act of the General Assembly, or a provision of the North Carolina Constitution (previously, did not include part of a law or rule adopted pursuant to an act of the General Assembly).