According to OSHA, what must occupants do during the operation of a platform?

Occupants operating a platform are required to keep all parts of their bodies inside the platform to ensure safety. This guideline is crucial because extending body parts outside the platform increases the risk of injury from accidental contact with nearby structures or surrounding environments. Maintaining this practice helps prevent falls or other related accidents that could result from leaning over the edge. This safety measure aligns with OSHA regulations, which aim to minimize hazards and ensure that workers are protected while using equipment such as platforms. The other choices may relate to safety practices but do not encapsulate the primary requirement of body positioning while such equipment is in use.