a. only permitted when
- the ball is outside the pitch over the back-line or goal-line
- a goal has been scored
- a penalty stroke awarded
- play is to restart after an unsuccessful penalty stroke
- play is to restart after half-time
-time has been stopped for an injury, when only the injured player may be substituted
Substitution is not permitted, except for injury to or suspension of
the defending goalkeeper, after or during the taking of a penalty corner.
b. no limit to the number of players who may be substituted at the same
time nor to the number of times any player may substitute or be substituted
c. a player who is substituted must return to the team bench before
being eligible to substitute again.
d. substitution of a player may be made only after a player from the
same team has left the pitch.
e. time shall not be stopped for substitutions except for injury.
f. substitutes shall not be permitted for suspended players during their
suspension.
g. after completing a suspension, a player may be substituted without
first returning to the pitch
h. players leaving or entering the pitch shall do so at or near the
centre-line on the side of the pitch where team benches are located