The purpose of this guide is to identify the activities, instructions, and attributes that may be considered in the process of installing, inspecting, and testing during new construction, modification, and maintenance for Class 1E power, instrumentation, and control equipment at nuclear power stations.Changes to this guide are intended to ⎯ Review and consider "lessons learned" from industry (in particular, for post-modification and postmaintenance testing). ⎯ Provide a more comprehensive, organized "user-friendly" format. ⎯ Review and consider any other related user feedback.