The Commission shall refer any proceeding regarding the jurisdictional separation of common carrier property and expenses between interstate and intrastate operations, which it institutes pursuant to a notice of proposed rulemaking and, except as provided in section
of this title, may refer any other matter, relating to common carrier communications of joint Federal-State concern, to a Federal-State Joint Board. The Joint Board shall possess the same jurisdiction, powers, duties, and obligations as a joint board established under subsection (a) of this section, and shall prepare a recommended decision for prompt review and action by the Commission. In addition, the State members of the Joint Board shall sit with the Commission en banc at any oral argument that may be scheduled in the proceeding. The Commission shall also afford the State members of the Joint Board an opportunity to participate in its deliberations, but not vote, when it has under consideration the recommended decision of the Joint Board or any further decisional action that may be required in the proceeding. The Joint Board shall be composed of three Commissioners of the Commission and of four State commissioners nominated by the national organization of the State commissions and approved by the Commission. The Chairman of the Commission, or another Commissioner designated by the Commission, shall serve as Chairman of the Joint Board.