A play in the game when a team has shot the puck into the opposing team's end while teammates are still in the zone. Those players inside the zone are allowed to leave the zone, and once everyone has cleared and not re-entered, or the opposing team has carried the puck into the neutral zone, the "delayed offside" is washed and play can continue. This is also known as "tag-up offsides."
Linesmen signal the delayed offsides by raising their non-whistle arm and usually yelling at the offending team that they are offsides. Players leaving the zone cannot touch the puck, pressure the opposing team or make contact with those players. The linesman can rule intentional offsides and the face-off goes to the defensive zone of the offending team if he feels a player did any of these actions on purpose to stop the play.
Goals cannot be scored when a delayed offside is in effect. For example, if a defenseman of a team shoots the puck on net from the neutral zone while his teammates are in the offensive zone. Even if his teammates are coming out of the zone, and the puck enters the net after the last player has cleared, the goal does not count.
The National Hockey League - NHL tried a different variation of the delayed offside rule in the mid-90s until the 2005-2006 season. Delayed offsides during those years could only occur if a team shot the puck directly to the opposing team or the puck was shot into the zone above the face-off circles. This resulted in many needless stoppages, lost opportunities for non-offending teams and frustrating viewing for fans for nearly a decade.