This document discusses different types of collective and personal protection equipment for working at heights. It describes under-bridge inspection vehicles that have booms and buckets to reach under bridges. It also outlines three types of personal fall protection systems: work positioning systems that prevent or limit falls, such as boatswain's chairs; rope access systems that use two ropes for safety and access; and fall arrest systems that limit the impact of a fall through harnesses and high anchor points. Regular inspections of equipment are recommended.