For boundary umpires aged 9 and over in AFL community football (all age groups) under the Laws of Australian Football 2026. Covers out of bounds and out on the full, throw-ins, centre bounce starting positions, bringing the ball back after a goal, reporting offences, assisting the goal umpire, minimum umpire ages and accreditation.
Under Law 8.2.2 of the Laws of Australian Football 2026, unless your controlling body (the league or state body) determines otherwise, a boundary umpire's duties include:
When you signal out of bounds, the field umpire must blow the whistle immediately to show the ball is out of play.
Under the Laws of Australian Football 2026, the ball is out of bounds when it passes completely over the boundary line, or touches a behind post (or its padding or any other attachment to the post).
If any portion of the ball is on or above the boundary line, the ball is not out of bounds. The boundary line is the white line on the ground that marks the playing surface.
Whether the ball is simply out of bounds or out on the full depends on how it left. If it was kicked and crossed the line without touching the ground inside the playing surface or being touched by a player on or above the knee, it is out on the full, and a free kick is paid against the kicker. Otherwise, it is a normal out of bounds and you throw it in.
Out of bounds also results when a player awarded a mark or free kick from beyond the boundary line does not bring the ball back into play properly, for example by being tackled before doing so, or by not moving in one direction off the line of the mark when re-entering (Law 20.3). The result is a boundary throw-in from the location of the mark or free kick.
Under the Laws of Australian Football 2026, the ball is out of bounds on the full when it has been kicked and passes completely over the boundary line without touching the ground within the playing surface or being touched by a player on or above the knee. A kick that touches a behind post, or passes over it, without touching the ground or a player on or above the knee also counts.
A field umpire awards a free kick against a player who (Law 18.10.2):
The free kick is taken at the point where the ball crossed the boundary line. Players are meant to be encouraged to keep the ball in play.
Your job is to signal out on the full. The field umpire pays the free kick.
Under Law 8.2.2(b) of the Laws of Australian Football 2026:
Related rules that affect your throw-in:
Keep signalling until a field umpire notices you (Law 8.2.3(a)(i), Laws of Australian Football 2026).
Once the field umpire notices:
When you are directed to throw in, the field umpire may recall a throw-in that, in their opinion, gives no opportunity for the ball to be contested.
Under the Laws of Australian Football 2026:
Under the Laws of Australian Football 2026, a boundary umpire has two jobs around the centre:
After a goal: you bring the football back to the Centre Square (Law 8.2.2(a)(iv)).
Starting positions at the centre throw-up: you decide whether a player has broken a starting position (Law 8.2.2(a)(iii)). The positions in Law 13.1 are:
Once those positions are met, a player who then fails to hold their position before the ball leaves the field umpire's hand is penalised with a free kick to the opposing player in the Centre Circle (Law 18.2.2(b)). If a team has fewer than 18 on the ground, the numbers can be reduced but not exceeded (Law 13.1(e)).
Your controlling body can change these duties, so your league's rules apply if they differ.
Under the Laws of Australian Football 2026:
Boundary umpires must report any player or official who commits a reportable offence (Laws of Australian Football 2026, Law 8.2.2(a)(v) and Law 22). The obligation covers conduct during the match and on match day within the immediate proximity of the arena.
Reportable offences include striking, kicking, kneeing, charging, rough conduct, tripping, spitting, abusive, insulting, threatening or obscene language or gestures, disputing an umpire's decision, and contact with an umpire.
During the match
After the match (AFL National Community Football Policy Handbook, February 2026)
Under the AFL National Community Football Policy Handbook (February 2026), Section 6: