To minimize free fall distance, the tie-off attachment point to the lifeline or anchor should be located at or above the connection point of the fall arrest equipment to the harness 1, 2, 4. The free fall distance should be kept at a minimum and should not be greater than 6 feet (1.8 m) 1, 2, 4, 5. Attaching to the working surface can result in a free fall greater than 6 feet (1.8 m) 1, 2, 4.