at the faceoff location) to substitute their players, except during TV timeouts. 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 there is 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 rotate nets, 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