This guide is concerned with robotics technology. Its aim is to help someone who has been given a robotic safety responsibility to learn ways to prevent injuries during tasks which call for personnel enter robot work zones. There are many reasons why personnel enter robot work zones (job set up, repair, programming, inspection). The injuries which have occurred happened most frequently when corrective maintenance was being done. This guide describes the hazards which exist when a worker is in a robot's working area and means to minimize or eliminate them. When the safety of a robotic system under development is in question, this guide can be an aid for developing training of personnel, task design, workspace design, simulation, maintenance data collection, equipment specification, and maintenance instructions. Where safety solutions have already been applied to robot work stations, this guide may be used to evaluate their effectiveness.