Within industrial safety communications, there are images that are specific to an industry; both within manufacturing and at locations where the public is exposed to a potential hazard. Meeker & Associates, working with Electromark Corporation and researchers from the North Carolina State University developed a set of symbols for the transmission and distribution industry (T&D). In each case, communicating the semantic characteristics of the hazard became paramount, as the viewing audience was often unaware of the potential danger. All symbols were used with supporting text messages.