(a) Except as otherwise provided in this part, every portion of a Board meeting shall be open to public observation.

(b) Board meetings, or portions thereof, shall be open to public participation when an announcement to that effect is published under §1003.4. Public participation shall be conducted in an orderly, non-disruptive manner and in accordance with any procedures the Chairman may establish. Public participation may be terminated for good cause as determined by the Board upon the advice of the General Counsel based on unanticipated developments.