Dr. David Sweeting is working on an arc hazards guide with three parts. Part 1 deals with legal issues, part 2 is for workers, explaining what to do, and part 3 is for experts on arc hazard exposure. Safe Work Australia created model work health and safety regulations in 2011 that were legally binding in some states, except for electrical supply authorities. The regulations require identifying electrical hazards like electrocution, electric shock, and arcing hazards. They also require managing identified risks so far as is reasonably practical using a hierarchy of control measures, from elimination to substitution to engineering to administrative to personal protective equipment. "Operating work" involving energizing, de-energizing, connecting, and earthing equipment is permitted energized