PDFWAC 296-96-24115
Landing enclosures and gates.
Any landing enclosures and gates shall have:
(1) A railing at least 1066.8 mm (42 in.) high to protect all landing platforms and those areas of a building used as landing platforms; and
(2) A gate whose height is equal to the height of the railing to protect the passenger landing opening.
(a) Gates may either be a horizontally sliding type or a swing type; and
(b) All gates shall be equipped with a latch that holds the gate closed and an electrical contact to prevent movement of the car when a gate is open.
(3) Railing enclosure and gate shall reject a 38.1 mm (1.5 in.) diameter ball.