Each sport on the Olympic Program is governed by an International Federation (IF). Each nation competing at the Olympic Games must have a properly formed National Olympic Committee (NOC). In each nation, the various sports have National Governing Bodies (NGBs) that are responsible for the administration of that sport in that nation. The NGBs are invariably members of both their own NOC and the respective IF. As an example, the governing body of track & field athletics in the United States is USA Track & Field (USATF), which is a member of the United States Olympic Committee (USOC) and the International Amateur Athletic Federation (IAAF).