(1) The lighting control switch shall be located inside the machine room or control room within 609.6 mm (24 in.) of the lock jamb side of the access door.

For machine rooms and control rooms with double swing doors, the doors shall swing out and the switch(es) shall be located on the wall adjacent to the hinge side of the active door panel.

(2) Elevator machine room, control room, and control space access doors shall be provided with a sign that reads "Elevator Equipment Room/Authorized Personnel Only! Storage of equipment not pertaining to the elevator is prohibited." The sign shall be located approximately 1524 mm (60 in.) above floor level. Lettering shall not be less than 9.525 mm (0.375 in.) in height and shall contrast with the background. Where double doors are provided, the sign is only required to be provided on the active door panel.

(3) The temperature and humidity shall comply with ASME A17.1/CSA B44. Where no manufacturer's temperature range is available, the room or space shall be kept between 13°C (55°F) and 38°C (100°F).