(a) The Board may initiate a preliminary safety inquiry or order a formal safety investigation.

(b) A preliminary safety inquiry means any inquiry conducted by the Board or its staff, other than a formal investigation. Where it appears from a preliminary safety inquiry that a formal safety investigation is appropriate, the Board's staff will so recommend to the Board.

(c) A formal safety investigation is instituted by an Order of Safety Investigation issued either after a recorded notational vote of Board Members or after convening a meeting in accordance with the Government in the Sunshine Act and voting in open or closed session, as the case may be.

(d) Orders of Safety Investigations will outline the basis for the investigation, the matters to be investigated, the Investigating Officer(s) designated to conduct the investigation, and their authority.

(e) The Office of the General Counsel shall have primary responsibility for conducting and leading a formal safety investigation. The Investigating Officer(s) shall report to the Board.

(f) Following a notational vote and in accordance with the Government in the Sunshine Act, the Board or an individual Board Member authorized by the Board may hold such closed or open hearings and sit and act at such times and places, and require the attendance and testimony of such witnesses and the production of such evidence as the Board or an authorized member may find advisable, or exercise any other applicable authority as provided in the Board's enabling legislation. Each Board Member shall have full access to all information relating to the matter under investigation, including attendance at closed hearings.

(g) Subpoenas in formal safety investigation hearings may be issued by the Chairman only after a notational vote of the Board. The Chairman may designate another Board Member to issue a subpoena. Subpoenas shall be served by any person designated by the Chairman, or otherwise as provided by law.

(h) A determination of a decision or action authorized to the Board by these procedures shall only be made after a notational vote of the Board with each Board Member having one vote.