When a fencer crosses one of the boundaries of the piste with both feet, the Referee must immediately call ‘Halt’ and annul everything that has occurred after the boundary has been crossed, except a hit received by the fencer who has crossed the boundary even after they have crossed it provided that this hit is made immediately as part of the movement in the course of which they crossed the boundary.

If one of the fencers leaves the piste only a hit made by the fencer who remains on the piste can be counted valid, even in the case of a double hit.

Should a fencer cross the rear limit of the piste completely - i.e. with both feet - a hit will be scored against them.

If one of the fencers crosses the lateral boundaries of the piste with one foot only, they are not penalised but the Referee must immediately call ‘Halt’ and replace the fencers on guard on the piste.

A fencer who crosses one of the lateral boundaries of the piste with both feet is penalised. When the fencers are replaced on guard, the opponent of the fencer who has crossed the lateral boundary will step forward one metre from the position they occupied when their opponent left the piste; the fencer who is penalised must retire in order to resume the correct fencing distance.

If the exercise of this penalty places a fencer with both feet beyond the rear limit of the piste, that fencer is considered as having been hit.

A fencer who crosses one of the boundaries of the piste with both feet - e.g. when making a fleche - to avoid being hit will be penalised as specified in Articles t.114, t.116, t.120 Offences and Penalties.

A competitor who crosses one of the boundaries of the piste as the result of an accidental cause (such as collision or jostling) incurs no penalty whatever.