This document provides instructions for validating parts on a drawing parts list in CMPRO. It defines key terms like created part and valid part. It describes the business rule FORCE VALIDATE PART WITH PARTMASTER and explains how it affects the validation process. It outlines the steps a user would take to validate parts, including manually creating part master records, changing disposition statuses, and using the mass create released part master link. The goal is to mark all parts as valid so the DCN can be released.