(1) All car entrances shall be protected by a door or gate. The height of the door or gate shall be at least 42 in. and equal to the height of the car enclosure. Doors and gates may be of either a solid design or an openwork design. If of an openwork design, the door or gate shall be able to reject a 3 in. diameter ball. After the effective date of these rules the diameter will be reduced to 1.5 in.

(2) Car doors or gates shall be equipped with an electric contact that prevents the elevator from operating unless the door or gate is securely closed. If the gate is a swing type opening outward from the car, the electric contact shall not be made until the gate is securely latched.

(3) All car doors or gates shall be manually operated.