"By virtue of the authority vested in me as President of the United States and as Commander in Chief of the armed forces of the United States, it is hereby ordered as follows: 1. The Bronze Star Medal, with accompanying ribbons and appurtenances, which was first established by Executive Order No. 9419 of February 4, 1944, may be awarded by the Secretary of a military department or the Secretary of Transportation with regard to the Coast Guard when not operating as a service in the Navy, or by such military commanders, or other appropriate officers as the Secretary concerned may designate, to any person who, while serving in any capacity in or with the Army, Navy, Marine Corps, Air Force, or Coast Guard of the United States, after December 6, 1941, distinguishes, or has distinguished, himself by heroic or meritorious achievement or service, not involving participation in aerial flight-- (a) while engaged in an action against an enemy of the United States; (b) while engaged in military operations involving conflict with an opposing foreign force; or (c) while serving with friendly foreign forces engaged in an armed conflict against an opposing armed force in which the United States is not a belligerent party."
Executive Order 11046; EO 11046
Federal Register: http://www.gpo.gov/fdsys/browse/collection.action?collectionCode=FR