NATO Organizations – Any entity created by the North Atlantic Council or Defense Planning Committee and to which either NATO agreement or protocol set up pursuant to NATO applies.

Governmental Agencies of NATO Member Nations – Any government agency, including military forces of any of the 28 NATO Member Nations.

Contractors performing on behalf of NATO/member nations Partnership for Peace Countries – Non-NATO member nations who signed the Partnership for Peace Agreement on or after January 10, 1994; may be eligible, subject to a case-by-case agreement between NATO and RTN.