(a) Any meeting or portion of meeting that may properly be closed to the public pursuant to § 147.3(b) (4), (8), (9)(i), (9)(ii) or (10), or any combination thereof, may be closed if a majority of Commissioners votes by recorded vote at the beginning of such meeting, or portion thereof, to close the exempt portion or portions of the meeting.

(b) The provisions of § 147.4, and of § 147.5 (a), (b), (c), (d), (e), (f) and (h) shall not apply to any portion of a meeting to which paragraph (a) of this section is applied. The provisions of § 147.5(g) and (i) shall apply to any such portions of meetings.

(c) A written copy of all votes taken pursuant to paragraph (a) of this section reflecting the vote of each Commissioner on the question shall be made available for public inspection in the Office of the Secretariat at the Commission's Washington, DC headquarters.

(d) The Commission shall, except to the extent that such information is exempt from disclosure under the provisions of § 147.3(b), make public announcement at the earliest practicable time of the time, place, and subject matter of any portion of a meeting to which paragraph (a) of this section is applied. Such public announcement shall be provided, to the extent practicable, through the Commission's public calendar as described in § 147.4(d)(1), and by the Commission's Office of the Secretariat as set forth in § 147.4(d)(2).