Referee's Signal Number 18 - Offside

Offside

When used

This signal is used by the Referee to indicate that a player has illegally entered the Neutral Zone. It may be preceded by the dead-ball signal (S7) if the offence occurred before the snap.

Penalty

Irregardless of whether this is a live or dead ball foul, the penalty will be 5 yards from the previous spot.

How executed

Begin the motion with your arms at your side and bring them up to your hips in an unhurried manner. Finally point to the offending team by stretching an arm out from the shoulder to the horizontal.