scope:

SUMMARY OF CHANGES

This instruction has been substantially revised and must be completely reviewed. Major changes include the addition of Tier wavier authority requirements for added paragraphs, incorporated Engineering Technical Letters, updated office symbols, updated glossary, updated references, revision of National Electrical Code (NEC) references to reflect current requirements, revision of current National Fire Protection Association (NFPA) references to reflect current and upcoming requirements for new facilities, and clarifications based on questions received from maintenance personnel. Also included are the incorporation of Engineering Technical Letter (ETL) 11-28: Mandatory Review and Update of Record Drawings for Nuclear-Capable Weapons and Munitions Storage and Maintenance Facilities, and Engineering Technical Letter (ETL) 12-9: Personnel Certification Requirements for Inspection of Lightning Protection Systems (LPS) on Nuclear Weapons Maintenance, Handling, and Storage Facilities.