Elevator operation shall be automatic.
28.2.1 Self Leveling: Each car shall be equipped with a self-leveling feature that is automatic and independent of the operating device and shall correct any over travel or undertravel.28.2.2 The self-leveling feature shall bring the car to a position level with floor landings under all loading conditions from zero to the rated limit. A tolerance of 1/2 inch (1/2" = 13mm) shall be permitted.