(a) Meetings will be closed to public observation where the Commission properly determines, according to the procedures set forth in § 375.206, that such meeting or portion of the meeting or disclosure of information to be considered at the meeting is likely to:

(1) Disclose matters that are (i) specifically authorized under criteria established by an Executive order to be kept secret in the interests of national defense or foreign policy and are (ii) in fact properly classified pursuant to such Executive order;

(2) Relate solely to the internal personnel rules and practices of the Commission;

(3) Disclose matters specifically exempted from disclosure by statute (other than 5 U.S.C. 552): Provided, That such statute:

(i) Requires that the matters be withheld from the public in such a manner as to leave no discretion on the issue, or

(ii) Establishes particular criteria for withholding or refers to particular types of matters to be withheld;

(4) Disclose the trade secrets and commercial or financial information obtained from a person and privileged or confidential, which may include geological or geophysical information and data, including maps, concerning wells;

(5) Involve accusing any person of a crime, or formally censuring any person;

(6) Disclose information of a personal nature where disclosure would constitute a clearly unwarranted invasion of personal privacy, including personnel and medical files and similar files;

(7) Disclose investigatory records compiled for law enforcement purposes, or information which if written would be contained in such records, but only to the extent that the production of such records or information would:

(i) Interfere with enforcement proceedings;

(ii) Deprive a person of a right to a fair trial or an impartial adjudication;

(iii) Constitute an unwarranted invasion of personal privacy;

(iv) Disclose the identity of a confidential source and, in the case of a record compiled by a criminal law enforcement authority in the course of a criminal investigation, or by an agency conducting a lawful national security intelligence investigation, confidential information furnished only by the confidential source;

(v) Disclose investigative techniques and procedures, or;

(vi) Endanger the life or physical safety of law enforcement personnel.

(8) Disclose information contained in or related to examination, operating, or condition reports prepared by, on behalf of, or for the use of an agency responsible for the regulation or supervision of financial institutions;

(9) Disclose information the premature disclosure of which would be:

(i) In the case of an agency which regulates currencies, securities, commodities, or financial institutions, likely to:

(A) Lead to significant financial speculation in currencies, securities, or commodities, or

(B) Significantly endanger the stability of any financial institution; or

(ii) Likely to frustrate significantly implementation of a proposed Commission action, except that paragraph (a)(9)(i) of this section shall not apply where the Commission has already disclosed to the public the content or nature of such proposed action, or where the Commission is required by law to make such disclosure on its own initiative prior to taking final agency action on such proposal; or

(10) Specifically concern the Commission's issuance of a subpoena, or the Commission's participation in a civil action or proceeding, an action in a foreign court or international tribunal, or an arbitration, or the initiation, conduct, or disposition by the Commission of a particular case:

(i) Of formal Commission adjudication pursuant to the procedures in 5 U.S.C. 554; or

(ii) Otherwise involving a determination on the record after opportunity for a hearing.

(b) Commission meetings shall not be closed pursuant to paragraph (a) of this section when the Commission finds that the public interest requires that they be open.