The International Ice Hockey Federation (IIHF) is the worldwide governing body for ice hockey and in-line hockey. It is based in Zurich, Switzerland, and has 68 members. It is responsible for the management of international ice hockey tournaments, and maintains the IIHF World Ranking. Despite its worldwide authority, the IIHF has little control of hockey in North America, where the National Hockey League (NHL) is the highest hockey organization. Its base of power rests in Europe with the respective national governing bodies and leagues. Canada (Hockey Canada) and the United States (USA Hockey) are the only members who have their own rulebooks