(a) In deciding whether to comply with a demand or request, Department officials and attorneys shall consider, among others:

(1) Whether such compliance would be unduly burdensome or otherwise inappropriate under the applicable rules of discovery or the rules of procedure governing the case or matter in which the demand arose;

(2) Whether compliance is appropriate under the relevant substantive law concerning privilege or disclosure of information;

(3) The public interest;

(4) The need to conserve the time of Department employees for the conduct of official business;

(5) The need to avoid spending the time and money of the United States for private purposes;

(6) The need to maintain impartiality between private litigants in cases where a substantial government interest is not implicated;

(7) Whether compliance would have an adverse effect on performance by the Department of its mission and duties; and

(8) The need to avoid involving the Department in controversial issues not related to its mission.

(b) Among those demands and requests in response to which compliance will not ordinarily be authorized are those with respect to which, inter alia, any of the following factors exist:

(1) Compliance would violate a statute or a rule of procedure;

(2) Compliance would violate a specific regulation or executive order;

(3) Compliance would reveal information properly classified in the interest of national security;

(4) Compliance would reveal confidential commercial or financial information or trade secrets without the owner's consent;

(5) Compliance would reveal the internal deliberative processes of the Executive Branch; or

(6) Compliance would potentially impede or prejudice an on-going law enforcement investigation.