This document corrects the electrical safety-related work practices standard for general industry and the electric power generation, transmission, and distribution standards for general industry and construction to provide additional clarification regarding the applicability of the standards to certain operations, including some tree trimming work that is performed near (but that is not on or directly associated with) electric power generation, transmission, and distribution installations. This document also corrects minor errors in two minimum approach distance tables in the general industry and construction standards for electric power generation, transmission and distribution work.