Be

as to the decision the official should obtain possession of the ball and not
permit the player entitled to it to play it until both teams have had a chance
to recover their positions.

f. It is recosmended that score keepers be thoroughly acquainted with the
rule that a substitute is not permitted to enter the game after a goal or a
successful free throw. If the score keeper inadvertently blows his horn, time
out shall be charged if the substitute goes on the floor. It is further
emphasized that the captain is the only one who is permitted to take a charged
time out for the purpose of a substitution after a goal or a successful free
throw following a personal foul.