Ice hockey rules - Wikipedia
https://en.wikipedia.org/wiki/Ice_hockey_rulesIce hockey rules define the parameters of the sport of ice hockey. The sport is governed by several organizations including the International Ice Hockey Federation (IIHF), the National Hockey League (NHL), Hockey Canada, USA Hockey and others. The rules define the size of the hockey rinkwhere a game is played, the playing and safety equipment, the game definition, including time of play and whether tie-breaking methods are used and the actual playing rules themselves. Th…