OSHA banned the use of body belts as part of a personal fall arrest system in 1998 because full-body harnesses provide better suspension support because they distribute arresting/impact forces over a larger area of a worker’s body than body belts. As such, 1910.140(d)(3) retains OSHA’s 1998 prohibition on the use of body belts as part of a personal fall arrest system, but does allow their use in travel restraint systems, positioning devices (or work-positioning systems), and ladder safety systems.