No personnel are allowed to remain or work under suspended loads. Barricades and warning signs must prevent workers from entering areas directly below crane operations. Load paths must be planned to avoid personnel and structures. If personnel must work in areas where overhead work occurs, additional protective measures including hard hats and lookouts are required. Material hoists and personnel hoists must be properly designed and maintained. Hoistways must be enclosed or guarded to prevent personnel from coming into contact with moving loads or equipment. Operators must maintain visual contact with loads and must not exceed rated capacities. Dynamic loads must not exceed limits specified on equipment. Rigging and equipment inspection must verify safe condition before each lift. Load testing must verify equipment capacity before routine use. All personnel involved in lifting operations must wear high-visibility clothing. Radio communication must be used to coordinate complex lifts. Blind spots must be identified and spotters positioned accordingly. Load angles and stresses must be calculated to prevent equipment failure. Inclement weather including wind must be monitored and operations stopped if conditions create hazards. Fatigue of operators must be prevented through appropriate work/rest schedules. Only qualified equipment operators may operate hoists and cranes.