New IEEE Standard - Inactive-Withdrawn. Basic requirements for the selection and utilization of replacement parts for Class 1E equipment in nuclear power generating stations, in both the construction and operation phases, are set forth. Selection, categories, and replacement of parts are covered. The requirements are intended to ensure that replacement parts selected and utilized for Class 1E equipment in nuclear power generating stations will not degrade the safety of the stations. They apply to parts which could result in the failure of the Class 1E equipment to perform its intended function or in degradation of the plant safety systems or the Class 1E equipment.