This document provides an overview of the netting process used to generate custom bills of materials (BOMs) and production routings for unique locomotives designed for specific sales orders at Electro-Motive Diesel. The netting transaction (ZNET) supports the user interface, performs netting functions, and maintains custom materials, BOMs, and routings. It executes the netting process station by station to generate final netted BOMs and production routings based on the configured order BOM. The document includes screenshots illustrating the netting transaction screens, logs, and generated BOMs and routings for a sample locomotive order.