The official seal and distinguishing flag shall not be used except as authorized by the Director of Administration in connection with:

(a) Contractor-operated facilities.

(b) Souvenir or novelty items.

(c) Toys or commercial gifts or premiums.

(d) Letterhead design, except on official Departmental stationery.

(e) Matchbook covers, calendars, and similar items.

(f) Civilian clothing or equipment.

(g) Any article which may disparage the seal or flag or reflect unfavorably upon DOE.

(h) Any manner which implies Departmental endorsement of commercial products or services, or of the user's policies or activities.