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The National Hockey League rules are the rules governing the play of the
National Hockey League The National Hockey League (NHL; , ''LNH'') is a professional ice hockey league in North America composed of 32 teams25 in the United States and 7 in Canada. The NHL is one of the major professional sports leagues in the United States and Cana ...
(NHL), a professional
ice hockey Ice hockey (or simply hockey in North America) is a team sport played on ice skates, usually on an Ice rink, ice skating rink with Ice hockey rink, lines and markings specific to the sport. It belongs to a family of sports called hockey. Tw ...
organization. Infractions of the rules, such as offside and icing, lead to a stoppage of play and subsequent
face-off A face-off is the method used to begin and restart play after goals in some sports using sticks, primarily ice hockey, bandy, floorball, broomball, rinkball, and lacrosse. During a face-off, two teams line up in opposition to each other, and the ...
s, while more serious infractions lead to penalties being assessed to the offending team. 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 Montreal is the List of towns in Quebec, largest city in the Provinces and territories of Canada, province of Quebec, the List of the largest municipalities in Canada by population, second-largest in Canada, and the List of North American cit ...
in 1875, updated by subsequent leagues up to 1917, when the league adopted the existing
National Hockey Association The National Hockey Association (NHA), initially the National Hockey Association of Canada Limited, was a professional ice hockey organization with teams in Ontario and Quebec, Canada. It is the direct predecessor of today's National Hockey Leagu ...
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 North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South Ameri ...
. The rules differ slightly from the rules used in international games organized by the
International Ice Hockey Federation The International Ice Hockey Federation (IIHF; ; ) is a worldwide governing body for ice hockey. It is based in Zurich, Switzerland, and has 84 member countries. The IIHF maintains the IIHF World Ranking based on international ice hockey to ...
(IIHF) such as the
Olympics The modern Olympic Games (Olympics; ) are the world's preeminent international sporting events. They feature summer and winter sports competitions in which thousands of athletes from around the world participate in a variety of competit ...
(the NHL rules, however, are used in the
World Cup of Hockey The World Cup of Hockey is an international ice hockey tournament. Inaugurated in 1996 World Cup of Hockey, 1996, it is the successor to the Canada Cup, which was held every three to five years from 1976 Canada Cup, 1976 to 1991 Canada Cup, 1991 ...
). 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
goal A goal or objective is an idea of the future or desired result that a person or a group of people envision, plan, and commit to achieve. People endeavour to reach goals within a finite time by setting deadlines. A goal is roughly similar to ...
s and icing calls. New since the
2005–06 NHL season The 2005–06 NHL season was the 89th season of operation (88th season of play) of the National Hockey League (NHL). This season succeeded the 2004–05 season which had all of its scheduled games canceled due to a labor dispute with the Na ...
, after testing in the
American Hockey League The American Hockey League (AHL) is a professional ice hockey league in North America that serves as the primary developmental league of the National Hockey League (NHL). The league comprises 32 teams, with 26 in the United States and 6 in Cana ...
, a
trapezoid In geometry, a trapezoid () in North American English, or trapezium () in British English, is a quadrilateral that has at least one pair of parallel sides. The parallel sides are called the ''bases'' of the trapezoid. The other two sides are ...
is marked behind each goalie net. The goalie can play the puck only 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 is assessed. This rule is widely referred to as the " Brodeur rule", after
New Jersey Devils The New Jersey Devils are a professional ice hockey team based in Newark, New Jersey. The Devils compete in the National Hockey League (NHL) as a member of the Metropolitan Division in the Eastern Conference (NHL), Eastern Conference. The club w ...
goalie
Martin Brodeur Martin Pierre Brodeur (; born May 6, 1972) is a Canadian–American former professional ice hockey goaltender and current team executive. He played 22 seasons in the National Hockey League (NHL), 21 of them for the New Jersey Devils, with whom ...
, whose puck handling 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 on both sides of the net.


Game timing

Between stoppages of play, teams have 18 seconds (five seconds for the visiting team, eight seconds for the home team, five seconds to line up at the faceoff location) to substitute their players, except during
TV timeout A television timeout (alternately TV timeout or media timeout) is a break in a televised live event for the purpose of television broadcasting. This allows commercial broadcasters to take an advertising break, or issue their required hourly statio ...
s. TV timeouts are two minutes long, and occur three times per period, during normal game stoppages after the 6, 10, and 14 minute marks of the period, unless it is during a power play, a goal that has just been scored, or the stoppage was as a result of an icing. Each team may also take one 30 second time-out, but it may only be taken during a normal stoppage of play. Each period, teams alternate the goal they defend, therefore changing attacking directions.


Scoring

A goal is scored when the puck passes entirely across the red line painted between the goal posts and below the crossbar. A goal may be disallowed under the following circumstances: # The scoring team takes a penalty (except if the other team puts the puck into its own net untouched by the team to be penalized) # The puck is directed in by an attacker's high stick (above the crossbar) # The puck has been directed, batted, thrown or kicked into the net by an attacking player other than with a stick (angling one's skate so the puck deflects off it into the goal is allowed) # Goaltender interference (which can also result in a penalty) # The puck goes in after a referee intends to stop play (e.g. the net has been dislodged) # The puck deflects off a referee or linesman and goes directly into the goal (exception to the rule that a puck hitting a referee or a linesman is still live) # A goal was allowed at the other end (this can happen if a video review clarifies a goal scored prior, as happened in a game on November 15, 2010, between the Los Angeles Kings and San Jose Sharks) # If a linesman reports to the referee (a) a double-minor for high-sticking, (b) a major penalty, or (c) a match penalty against the scoring team. When a regular-season game is tied at the end of regulation, it goes into a three-on-three, five-minute overtime period after a one-minute rest period with teams reversing the attacking direction. If a goal is scored during this period, the game ends and the team that scored the goal wins the game. If there is no scoring in the five-minute overtime, the game goes into a three-round shootout with the home team given the choice of shooting or defending first. This sequence ends when one team mathematically has more shootout goals than the other, thus winning the game. If neither team emerges victorious, the shootout continues one frame at a time until one team scores and the other does not, in which case the team that scores is given the win. A team that loses a game in overtime or the shootout receives one point in the standings; the awarding of game points to losing teams is a point of debate among fans and the media.


Offside

In ice hockey, play is said to be ''offside'' if a player on the attacking team crosses the offensive blue line and into the offensive zone before the puck (unless the defensive team brings the puck into their own zone). A violation occurs when an offside player touches the puck. If a player crosses the line ahead of the puck but his team is not in possession of it, the linesman will raise his arm to signal a delayed offside; when all players from the offside team leave their offensive zone ("tag up" in the neutral zone) the linesman washes out the delayed call. When an offside violation occurs, the linesman blows the play dead, and a
faceoff A face-off is the method used to begin and restart play after goals in some sports using sticks, primarily ice hockey, bandy, floorball, broomball, rinkball, and lacrosse. During a face-off, two teams line up in opposition to each other, and the ...
is conducted in the neutral zone. During the 2004–05 lockout, the league removed the "two-line offside pass" rule, which required a stoppage in play if a pass originating from inside a team's defending zone was completed on the offensive side of the center line, unless the puck crossed the line before the player. The removal of the two-line offside was one of several rule changes intended to increase overall scoring, which had been in decline since the early 1990s. The only time a player may precede the puck into the attacking zone with the puck behind in the neutral zone is if none of his teammates are in the attacking zone and the player with the puck has control of the puck in the estimation of the linesman (e.g. short-sticking/spin-o-rama).


Icing

Icing occurs when a player shoots the puck across both the center line and the opposing team's goal line without the puck going through the goal crease. When icing occurs, a linesman stops play if a defending player (other than the goaltender) crosses the imaginary line that connects the two faceoff dots in their defensive zone before an attacking player is able to. If the attacking player beats the defender for the puck, the icing is waved off. Play is resumed with a faceoff in the defending zone of the team that committed the infraction. Icing is not enforced for a team that is short-handed. If the goaltender makes a move from his net to play the puck, the icing is immediately waved off (in contrast to minor league and international hockey, where the goaltender must play the puck for it to be waved off). Icing can also be waved off if, in the officials' opinion, the defending team had a viable opportunity to play the puck before crossing the goal line. After an icing, a TV timeout cannot be called. The team who iced the puck may not make any line changes before the following faceoff, however injured players can make changes with exceptions.


Face-offs

Face-offs are used to start play at the beginning of each period and after all stoppages of play. At all levels of play, the teams line up in opposition to one another, and one player from each team (normally the centre) face each other at a designated point on the ice. Once a game official drops the puck between the two opposing skaters' sticks, they attempt to gain control of it. The face-off procedure differs slightly between NHL and international rules. Prior to the 2015–16 NHL season, the away team's centre was required to place his stick on the ice first. Since that season, this is true only for face-offs on the centre-line dot; for face-offs in either attacking zone, the defending centre must place his stick first. Under international rules, the attacking centre must place his stick first for all face-offs.


Eligibility

The Trushinski
bylaw A by-law (bye-law, by(e)law, by(e) law), is a set of rules or law established by an organization or community so as to regulate itself, as allowed or provided for by some higher authority. The higher authority, generally a legislature or some other ...
says players who are blind in one or both eyes are ineligible to play. The rule is named for
Frank Trushinski Frank, FRANK, or Franks may refer to: People * Frank (given name) * Frank (surname) * Franks (surname) * Franks, a Germanic people in late Roman times * Franks, a term in the Muslim world for all western Europeans, particularly during the Crusa ...
, a minor league hockey player for the
Kitchener Greenshirts The Kitchener Greenshirts name has been used by five separate ice hockey teams playing in Kitchener, Ontario, Canada. These include one 'Senior A' level hockey team, two 'Junior A' level teams, and two 'Junior B' level teams. The name has also b ...
. Trushinski lost his sight in one eye in a game in 1921, but was allowed to continue playing. In a later game, he suffered a
skull fracture A skull fracture is a break in one or more of the eight bones that form the cranial portion of the skull, usually occurring as a result of blunt force trauma. If the force of the impact is excessive, the bone may fracture at or near the site of ...
which cost him most of the sight in his other eye.


Helmets

In August 1979, John Ziegler Jr., the president of the National Hockey League, announced that protective helmets would become mandatory in the NHL. "The introduction of the helmet rule will be an additional safety factor", he said. The only exception to the rule are players—after signing a waiver form—who signed pro contracts prior to June 1, 1979. Essentially, this grandfather clause allowed hockey's veterans to choose whether or not they wanted to wear helmets but forced all new players to wear them. In 2013, visors in helmets became mandatory for players with 25 or less games of NHL experience. However, players who wore helmets without visors prior to the rule change may continue to wear them. Beginning the
2019–20 NHL season The 2019–20 NHL season was the 103rd season of operation (102nd season of play) of the National Hockey League. The regular season began on October 2, 2019, with playoffs originally planned for April and the Stanley Cup Finals planned for June. ...
, a player on the ice whose helmet comes off must either pick it up and put it on properly, or skate to the bench (with a reasonable opportunity to complete his immediate play). Otherwise, a minor penalty shall be assessed. Intentionally removing an opponent's helmet during play became a
roughing Roughing is an offense and penalty in ice hockey when two players are in a minor altercation. The incident would have to be minor for either player to be categorized as such an offense, for instance: * A player striking another opponent * A goal ...
offense punishable with a minor penalty.


Penalties

A penalty is a
punishment Punishment, commonly, is the imposition of an undesirable or unpleasant outcome upon an individual or group, meted out by an authority—in contexts ranging from child discipline to criminal law—as a deterrent to a particular action or beh ...
for infractions of the rules. A
referee A referee is an official, in a variety of sports and competition, responsible for enforcing the rules of the sport, including sportsmanship decisions such as ejection. The official tasked with this job may be known by a variety of other title ...
makes most penalty calls while the
linesmen In association football, an assistant referee (also known as a linesman) is an official who assists the referee in administering the Laws of the Game during a match. Although assistants are not required under the Laws, at most organised levels ...
may call only obvious technical infractions such as ''too many men on the ice''. In the NHL, the linesmen may also stop play due to player injury, and may report to the referees, during any stoppage in play, any circumstances pertaining to major, match, or misconduct penalties, abuse of officials (physical or otherwise), unsportsmanlike conduct, or double-minor penalties for
high-sticking High-sticking can refer to two infractions in the sport of ice hockey. As a non-penalty foul, high-sticking the puck is defined in Rule 80 of the rules of the National Hockey League. It may occur when a player intentionally or inadvertently plays ...
causing injury, that were not detected by the referees. During a penalty, the player who committed the infraction is sent to the
penalty box The penalty box or sin bin (sometimes called the bad box, or simply bin or box) is the area in ice hockey, rugby union, rugby league, roller derby and some other sports where a player sits to serve the time of a given penalty, for an offence not ...
. Small infractions are deemed minor penalties, and the player is kept off the ice for two minutes of gameplay. A larger infraction such as high-sticking that causes the victimized player to have a visible physical injury is deemed a double-minor, and the perpetrator is kept off the ice for four minutes. More dangerous infractions, such as fighting, are deemed major penalties and have a duration of five minutes. The penalized team cannot replace the player on the ice and is thus
short-handed Short-handed is a term used in ice hockey and several related sports, including water polo, and refers to having fewer players on the ice during play, as a result of a penalty. The player removed from play serves the penalty in the penalty box ...
for the duration of the penalty. Normally, hockey teams have five skaters (plus the
goaltender In ice hockey, the goaltender (commonly referred to as goalie or netminder) is the player responsible for preventing the hockey puck from entering their own team's net, thus preventing the opposing team from scoring. The goaltender mostly plays ...
) on the ice. If a minor or major penalty is called, play becomes "five-on-four"—five skaters versus four skaters. This situation is called a
power play "Power play" is a sporting term used to describe a period of play where one team has a numerical advantage in players, usually due to a rule violation by the opposing team. Temporary numerical advantage in players during a team sport In several ...
for the non-penalized team and a penalty kill for the penalized team; a team is far more likely to score on a power play than during normal play. If the penalized team is scored on during a minor penalty, the penalty immediately terminates. A double-minor is divided into two separate two-minute minor penalties that are served consecutively. This means that if a goal is scored by the team on the power play before the first minor is over (before the two-minute mark of the power play), the first minor ends and the penalty clock goes down to two minutes. If a goal is scored during the second minor (after the two-minute mark of the power play), the penalty ends. Unlike minor penalties, major penalties must be served to their full completion, regardless of number of goals scored during the power play. When a penalty is about to be called, an official will raise his arm to signal what is referred to as a "delayed penalty"; play will continue until the offending team touches the puck, at which point, the official will blow the play dead and assess the penalty. After a penalty is assessed, play resumes with a face-off in the offending team's defensive zone under most circumstances. If a delayed penalty is called and goes to the end of the period then the full penalty goes to the next period. If a penalty is called with less than two minutes to go in a period, except for overtime, a penalty is "carried over" into the next period, meaning that any power plays called in the final two minutes of a period move along to the next period, meaning that if a penalty is called at 19:01 in the first period, then the remaining 1:01 of the power play will go to the second period. If the team committing a penalty yields a goal and is already short-handed because of a minor penalty, the penalty will be called when the goal is scored, and the team scoring a goal will be awarded a fresh power play. Furthermore, when goals are scored, penalties come off the board in the order in which they were called (if multiple penalties have been called). If a goaltender takes a penalty (etc. delay of game), a player who was on the ice at the time of the penalty goes to the penalty box, and the goalie stays in game.


Own-goal mishaps

The offending team cannot touch the puck during a delayed penalty. This usually results in the opposing team replacing their goalie with an extra forward until the offending team touches the puck, since the offending team must touch the puck in order to score on the empty net. On rare occasions, however, this situation has resulted in an
own goal An own goal occurs in sports when a player performs actions that result in scoring points for the opposition, such as when a Association football, footballer puts a ball into their own net. In some parts of the world, the term has become a met ...
. For example: * In the November 24, 2008
New York Islanders The New York Islanders (colloquially known as the Isles) are a professional ice hockey team based in Elmont, New York. The Islanders compete in the National Hockey League (NHL) as a member of the Metropolitan Division in the Eastern Conference (N ...
Montreal Canadiens The Montreal Canadiens (), officially ' ( Canadian Hockey Club) and colloquially known as the Habs, are a professional ice hockey team based in Montreal. The Canadiens compete in the National Hockey League (NHL) as a member of the Atlantic D ...
game, when the referee was about to call a penalty against New York,
Montreal Canadiens The Montreal Canadiens (), officially ' ( Canadian Hockey Club) and colloquially known as the Habs, are a professional ice hockey team based in Montreal. The Canadiens compete in the National Hockey League (NHL) as a member of the Atlantic D ...
' goaltender
Carey Price Carey Price (born August 16, 1987) is a Canadian professional ice hockey goaltender currently under contract with the Montreal Canadiens of the National Hockey League (NHL). Considered one of the best goaltenders in the world during his career, ...
headed back to the bench for an extra forward. At that moment, Canadiens' defenceman
Ryan O'Byrne Ryan David O'Byrne (born July 19, 1984) is a Canadian former professional ice hockey player who played in the National Hockey League (NHL) from 2007 to 2013 with the Montreal Canadiens, Colorado Avalanche and the Toronto Maple Leafs. During this ...
, not noticing the delayed penalty and the empty net, attempted to pass the puck to his (now-missing) goaltender. The puck landed in the net and a goal was awarded to the Islanders'
Bill Guerin William Robert Guerin (born November 9, 1970) is an American former professional ice hockey player and the current general manager of the Minnesota Wild. He previously was the assistant general manager of the Pittsburgh Penguins and general manag ...
. * In the March 21, 2009 game between the
Vancouver Canucks The Vancouver Canucks are a professional ice hockey team based in Vancouver. The Canucks compete in the National Hockey League (NHL) as a member of the Pacific Division (NHL), Pacific Division in the Western Conference (NHL), Western Conferenc ...
and the
Phoenix Coyotes The Arizona Coyotes are an inactive professional ice hockey team based in the Phoenix metropolitan area. They competed in the National Hockey League (NHL) as a member of the Central Division (NHL), Central Division (1996–1998, 2021–2024) and ...
, Phoenix scored an empty-net goal during a delayed penalty against the Coyotes' Viktor Tikhonov. In an attempt to take possession and thus stop play, Tikhonov poke-checked Vancouver's
Henrik Sedin Henrik Lars Sedin (born 26 September 1980) is a Swedish ice hockey executive and former centre who played his entire 17-season National Hockey League (NHL) career with the Vancouver Canucks from 2000 to 2018. He additionally served as the Canuc ...
near the Vancouver blue line. Since Tikhonov only ever touched Sedin's stick, and not the puck, play continued, even though the puck was now headed straight for Vancouver's goal. Sedin's teammate Shane O'Brien skated after the errant puck, but to no avail. Both the puck and O'Brien landed in the net (with O'Brien dislodging the net in full force), and Tikhonov was credited with the goal. * In the March 21, 2013, game between the
New Jersey Devils The New Jersey Devils are a professional ice hockey team based in Newark, New Jersey. The Devils compete in the National Hockey League (NHL) as a member of the Metropolitan Division in the Eastern Conference (NHL), Eastern Conference. The club w ...
and the
Carolina Hurricanes The Carolina Hurricanes (colloquially known as the Canes) are a professional ice hockey team based in Raleigh, North Carolina. The Hurricanes compete in the National Hockey League (NHL) as a member of the Metropolitan Division in the Eastern Con ...
, when the referee was about to call a 2:00 minor penalty against the Devils'
Marek Židlický Marek Židlický (; born ) is a Czechs, Czech former professional ice hockey player who played in the National Hockey League (NHL). He was selected in the sixth round, 176th overall, by the New York Rangers in the 2001 NHL Entry Draft. Playing ...
for hooking, Carolina goaltender
Dan Ellis Daniel, Danny or Dan Ellis may refer to: Sports *Dan Ellis (ice hockey) (born 1980), Canadian ice hockey player *Danny Ellis (footballer, born 1985), English footballer for Guiseley, Harrogate, Farsley, and Darlington *Daniel Ellis (footballer, bor ...
was heading to the bench for an extra attacker when he discovered that
Jordan Staal Jordan Staal (born September 10, 1988) is a Canadian professional ice hockey Centre (ice hockey), centre and Captain (ice hockey), captain of the Carolina Hurricanes of the National Hockey League (NHL). He is regarded as a premier penalty-killer ...
's pass to
Tim Gleason Timothy Patrick Gleason (born January 29, 1983) is an American former professional ice hockey defenseman and current assistant coach to the Carolina Hurricanes. Drafted by the Ottawa Senators in the first round, 23rd overall, at the 2001 NHL en ...
had been unsuccessful and, as a result, the puck had bounced off the boards toward the empty net. Ellis tried to chase after it, but he could not get there in time, and, because Carolina's
Alexander Semin Alexander Valeryevich Semin (, ; born 3 March 1984) is a Russian former professional ice hockey winger. He last played with HC Vityaz of the Kontinental Hockey League (KHL) the top league in Russia. He previously played in the National Hocke ...
was already in the penalty box when the puck went into the net, a power play goal was awarded to the Devils; its goaltender,
Martin Brodeur Martin Pierre Brodeur (; born May 6, 1972) is a Canadian–American former professional ice hockey goaltender and current team executive. He played 22 seasons in the National Hockey League (NHL), 21 of them for the New Jersey Devils, with whom ...
— the last Devil to touch the puck — was credited with the goal.


Non-power play situations

There are exceptions to the rule where a team cannot replace a player on the ice after a penalty: mutual majors for fighting, where there are two participants in a fight, will result in each person receiving five minutes, but the penalties will not affect the on-ice strength of either team (play remains five-on-five), unless a player is deemed to be the instigator of the fight, in which case that player will receive an additional two-minute minor. There are also "coincidental" minors in which the penalties called against both teams are simultaneous and equal in length, so that neither team receives a power play, with teams skating five-on-five.


"Delay of game" situations

After the
2004–05 NHL lockout The 2004–05 NHL lockout was a labor lockout that resulted in the cancellation of the National Hockey League (NHL) season, which would have been its 88th season of play. The main dispute was the league's desire to implement a salary cap to ...
, a new rule was instituted that imposes a minor delay-of-game penalty on any defensive player who directs the puck out of bounds (e.g., over the glass into the stands or into the safety netting). When the puck is shot into either of the players’ benches, the penalty will not apply.


Match penalties

Although very uncommon, a match penalty can be assessed when a player has made a deliberate effort (successful or not) to injure an opposing player. A player who receives a match penalty is ejected for the balance of the game. Additionally, the team plays shorthanded for five minutes, regardless of the number of goals scored. Should a goaltender receive a match penalty, a backup goaltender is allowed into the game.


Misconduct penalties

There are also misconduct penalties which are reserved for infractions such as continued disputing of a call with an official. A normal misconduct penalty results in the player being kept off the ice for 10 minutes; that player, even after the 10 minutes have expired, must remain in the penalty box until the next stoppage of play. Game misconduct penalties share the same effect as a match penalty; a player that receives a game misconduct is then immediately removed from the ice for the balance of the game. In both instances, a team will be required to replace that removed player with a substitute. If a goaltender, at any time, receive a normal misconduct, that goaltender stays in the game, and a designated skater will have to serve the misconduct penalty on the goaltender's behalf. Should a goaltender, however, receive a game misconduct, it is pulled from the game, and a backup is then put in. A player receiving a misconduct penalty does not cause his team to play short-handed unless he also receives a minor or major penalty in addition to the misconduct penalty.


Power play combinations

Various combinations of penalties may also result in matchups such as 5-on-3, 4-on-3, 4-on-4 or even 3-on-3; in a four-on-four or three-on-three penalty combination, icing will still be enforced. A team, however, may not have fewer than four players (including the goaltender) on the ice at any point in the game.


Power play in overtime

If a penalty is called on a team in overtime, the matchups in that period cannot become 3-on-2, as there cannot be less than three skaters on the ice for a team. Instead, the power play team gets a 4-on-3 power play. When that power play ends, the matchups temporarily become 4-on-4 until the play is blown dead, after which the matchups return to 3-on-3.


Team roster

The maximum number of players on an NHL roster is 20. A team can have a maximum of 50 signed players and a total of 90 players (unsigned and signed).


Potential rule changes

In August 2010, the NHL held an "
R & D Research and development (R&D or R+D), known in some countries as experiment and design, is the set of innovative activities undertaken by corporations or governments in developing new services or products. R&D constitutes the first stage of d ...
camp" at the
Toronto Maple Leafs The Toronto Maple Leafs (officially the Toronto Maple Leaf Hockey Club and often referred to as the Leafs) are a professional ice hockey team based in Toronto. The Maple Leafs compete in the National Hockey League (NHL) as a member of the A ...
practice facility, where rule changes under consideration were given trial runs. Scrimmages at the camp, featuring some top players eligible for the
2011 NHL Entry Draft The 2011 NHL entry draft was the 49th entry draft for the National Hockey League. It was held on June 24–25, 2011, at the Xcel Energy Center in Saint Paul, Minnesota. It was the first time the draft was held in the state of Minnesota since the ...
, experimented with changes such as two-on-two
overtime Overtime is the amount of time someone works beyond normal working hours. The term is also used for the pay received for this time. Normal hours may be determined in several ways: *by custom (what is considered healthy or reasonable by society) ...
, shallower goal nets, a
referee A referee is an official, in a variety of sports and competition, responsible for enforcing the rules of the sport, including sportsmanship decisions such as ejection. The official tasked with this job may be known by a variety of other title ...
viewing the play from an elevated off-ice platform, and a rink with three
face-off A face-off is the method used to begin and restart play after goals in some sports using sticks, primarily ice hockey, bandy, floorball, broomball, rinkball, and lacrosse. During a face-off, two teams line up in opposition to each other, and the ...
circles instead of the traditional five.


Table of comparison

In 2021 IIHF adopted a new rule book which is based on NHL rules, however, some differences remain. The following table lists some of the key differences between NHL and IIHF rules.


References

* ;Notes


External links


NHL Official Rules 2023–2024
{{DEFAULTSORT:National Hockey League Rules Ice hockey rules and regulations
Rules Rule or ruling may refer to: Human activity * The exercise of political or personal control by someone with authority or power * Business rule, a rule pertaining to the structure or behavior internal to a business * School rule, a rule tha ...