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The National Hockey League rules are the rules governing the play of the National Hockey League (NHL), a professional ice hockey organization. Infractions of the rules, such as offside and icing, lead to a stoppage of play and subsequent to the offending teams. The league also determines the specifications for playing equipment used in its games. The rules are one of the two standard sets of ice hockey rules in the world. The rules themselves have evolved directly from the first organized indoor ice hockey game in Montreal in 1875, updated by subsequent leagues up to 1917, when the league adopted the existing National Hockey Association set of rules. While designed to govern play of games organized by the league, the NHL's rules are the basis for rules governing most ice hockey leagues in North America. The rules differ slightly from the rules used in international games organized by the International Ice Hockey Federation (IIHF) such as the Olympics, however, the NHL rules are used in international 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. ==Hockey rink== Near each end of the rink there is a red ''goal line'' spanning the width of the ice. It is used to judge goals and icing calls. New since the 2005–06 NHL season, after testing in the American Hockey League, a trapezoid is marked behind each goalie net. The goalie can only play the puck within that area or in front of the goal line. If he plays the puck behind the goal line and not in the trapezoid, a 2-minute minor penalty for delay of game will be assessed by the referees. This rule is widely referred to as the "Brodeur rule", after New Jersey Devils goalie Martin Brodeur, whose puckhandling behind the net is believed to be the cause for the rule.〔 〕 In 2014, the NHL lengthened the goal-line side of the trapezoid by two feet on both sides of the net 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「National Hockey League rules」の詳細全文を読む スポンサード リンク
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