Children under five years
31.—(1) A child under five years shall not be present at a place of performance or rehearsal—
(a)for more than five hours a day;
(b)before half-past nine in the morning or after half-past four in the afternoon.
(2) Such a child shall not take part in a performance or rehearsal on any day—
(a)for a continuous period of more than thirty minutes without an interval for rest;
(b)for a total period of more than two hours.
(3) Any time during which such a child is present at a place of performance or rehearsal, but is not taking part in a performance or rehearsal, shall be used for the purposes of meals, rest and recreation.