A restart called when play goes out of bounds is one of rugby union’s most frequent set pieces. A lineout is awarded whenever the ball or a player carrying the ball goes into touch (the area beyond the touchline) or when the ball is otherwise declared out of play at the touchline, with the team not responsible for the ball going into touch normally receiving the throw-in. The legal framework and exceptions are set out by the World Rugby Laws Committee, World Rugby and explained in national guidance such as RFU Laws Department, Rugby Football Union.
Basic causes for a lineout
A lineout follows several common causes: the ball is kicked or carried into touch, the ball becomes dead after touching the touchline or ground beyond it, or play is stopped with the ball deemed to have crossed the touchline. If a player is forced into touch while tackling or being tackled and the ball goes out, referees judge responsibility; when the defending side is judged to have forced the ball out, the attacking side normally gets the throw. Judgment on “forcing” can be subtle and is often the subject of referee reports and coach feedback.
Kicking laws create important exceptions. When a team kicks directly into touch from inside its own 22-metre area, the lineout is taken where the ball crossed the touchline, awarding territorial gain. If the ball is kicked directly into touch from outside the kicking team’s 22-metre area, the lineout is taken level with the point of the kick, not where the ball crossed the line. After a penalty kick to touch, the kicking team is entitled to the throw-in regardless of where the ball went out. These specifics are codified in Law 19 and related provisions as set by the World Rugby Laws Committee, World Rugby.
Practical consequences and nuances
A lineout is both a territorial reset and an opportunity to contest possession. The team receiving the throw can opt for a quick throw-in when conditions are met: the ball must not have been touched after it went into touch and the throw must be taken before a formed lineout; otherwise the formal lineout procedure applies. Quick throws reward awareness and speed but carry risk if the ball is poorly secured.
Culturally and tactically, lineouts shape the character of teams and regions. Clubs with strong forward traditions invest heavily in lifting technique, jump timing and throw accuracy; coastal or windy venues introduce environmental factors that make throwing more difficult and encourage shorter, safer options. At community level, simpler lineout calls and fewer lifting variations reduce injury risk and ease training demands, while elite teams use complex coded plays to exploit matchups.
Referees’ interpretation of responsibility for the ball going into touch, and the precise application of the kicking exceptions, can influence momentum and scoring opportunities. Understanding when a lineout is awarded—grounded in the World Rugby Laws Committee, World Rugby guidance and national law explanations such as RFU Laws Department, Rugby Football Union—helps players, coaches and fans appreciate why possession changes at the sideline and how teams turn a restart into an attacking platform.