Foreword These application and installation guidelines offer practical information on correct usage and industryrecommended practices for installation of Type NM-B nonmetallic-sheathed cable and Type UF-B underground feeder and branch circuit cable in accordance with the National Electrical Code? (NEC). These guidelines have been developed by the NEMA Building Wire and Cable Group and Dues Center@ which has committed to periodically reviewing them for any revisions necessary to address changing conditions@ product listing and installation requirements@ and technical progress.