1124A.10 Operation and Leveling
The elevator shall be automatic and be provided with a self-leveling feature that will automatically bring the car to the floor landings within a tolerance of plus or minus 1/2 inch (12.7 mm) under rated loading to zero loading conditions. This self-leveling shall, within its zone, be entirely automatic and independent of the operating device and shall correct the overtravel or under-travel. The car shall also be maintained approximately level with the landing, irrespective of load.
The clearance between the car platform sill and the edge of the hoistway landing shall be no greater than 11/4 inches (31.75 mm).