Legal physical play where players use their bodies to compete for the puck and position without delivering a body check. What is allowed depends on the rulebook and classification.
An attacker being in the goal crease or making contact there in a way the rules do not allow. What counts, and whether a goal is taken away, depends on the rulebook.
A way of calling offside where play goes on while attackers who entered the zone too early skate back out to tag up. Which classifications use it depends on the rulebook and season.
A puck that went in but does not count, for example because of goaltender interference, a high stick, offside or a kicking motion. The reasons come from the applicable rulebook.
A center or teammate moving into or toward the faceoff area before the puck is dropped. What counts and what happens next, such as a center being waved out, depend on the rulebook.
Where play restarts after a stoppage: center ice, an end-zone dot or a neutral-zone dot. The rulebook sets which spot is used after each kind of stoppage.
A score that counts when the whole puck crosses the goal line between the posts and under the crossbar. Edge cases, such as kicked pucks or high sticks, are decided by the rulebook.
Playing the puck with the stick above the height the rulebook allows, often measured against the shoulders or the crossbar. It can stop play or wipe out a goal, depending on the rule set.
A version of icing where the linesperson judges the race and calls icing if the defender would reach the puck first, often by a set point such as the end-zone faceoff dots. The details depend on the rulebook.
Sending the puck from your own half all the way past the other team's goal line without anyone touching it, which usually stops play for a faceoff. Exceptions and how it is called vary by rule set.
The race for the puck after a long shot down the ice, with an attacker and a defender both trying to reach it first. Under some icing rules the race decides whether icing is called.
An offside call that stops play as soon as it happens, with no chance to tag up. Which classifications use it instead of delayed offside depends on the rulebook and season.
An offside the official judges was done on purpose, for example to stop play or get a better faceoff spot. Whether it is called and where the faceoff goes depend on the rulebook.
A rule some leagues and tournaments use to switch to running time or end a game early when one team leads by a large margin. The margin and what happens depend on the event's rules.
A version of icing where play stops as soon as the puck crosses the goal line, with no race to touch it, which avoids dangerous races into the boards. Which version applies depends on the rulebook.
Hockey played without body checking, though body contact is usually still allowed. Many youth, girls', women's and adult recreational games are played this way, as the applicable rulebook sets.
A rule that stops attacking players from entering the attacking zone ahead of the puck. The blue line decides it, and how it is called depends on the rule set and age classification.
The line that decides offside, which in ice hockey is the attacking blue line. How skates and the puck are judged against it comes from the applicable rulebook.
Being allowed where you are under the offside rule, usually because the puck crossed the attacking blue line before you did. Exactly what counts depends on the rule set.
One of the timed parts a game is split into. Most games have three periods, but how long each one lasts depends on the level, the league and the rulebook.
When a player clearly has the puck on the stick and can choose what to do with it. Offside, delayed penalties and other rules use it, and the exact definition comes from the rulebook.
The scheduled length of a game before any overtime or shootout. Many leagues record a result decided in regulation differently from one decided in overtime.
The span of seasons one edition of a rulebook covers before it is revised. USA Hockey, for example, publishes its playing rules on a multi-season cycle.
The official playing rules for a competition, such as USA Hockey, the NHL, the NCAA or a state high school association. Rules differ between rulebooks and editions, so always check which one applies to a game.
Timing where the game clock keeps running through most whistles, used to fit games into short ice times or when the score is lopsided. When it applies is set by the league or tournament rules.
Timing where the game clock stops at every whistle, so each period lasts its full playing time. Leagues and tournaments choose between stop time and running time in their rules.
Attackers skating back out to the blue line to clear the zone so a delayed offside is cancelled and play can go on. What each player must touch or clear depends on the rulebook.
A version of icing where play stops only when a defending player touches the puck after it crosses the goal line. Whether a game uses touch, no-touch or hybrid icing depends on the rulebook.
A pass from your own defensive zone that crosses two lines, such as your blue line and the center red line, before a teammate touches it. Whether it is a violation depends on the rulebook.
A long shot that would be icing but that the linesperson decides not to call, for example because the defending team could have played the puck. The reasons an official may wave it off come from the rulebook.