Topic summary
NHL rules
Extracted from the Wikipedia article National Hockey League rules.
The rules differ slightly from the rules used in international games organized by the International Ice Hockey Federation (IIHF) such as the Olympics (the NHL rules, however, are used in the World Cup of Hockey). The IIHF rules are themselves also based on Canadian rules of ice hockey dating back to the early 20th century. The NHL and IIHF differ in the treatment of fighting and in playing rules, such as icing, the areas of play for goaltenders, helmet rules, officiating rules, timeouts and play reviews.