Technical process expert responsible for translating engineering, customer, and regulatory requirements into compliant welding procedures, work instructions, qualifications, and inspection plans. This document is the PRI Qualification Body of Knowledge (BoK) for the Welding Planner (PL) role specific to Electron Beam Welding (EBW) in aerospace manufacturing. It establishes the knowledge, skills, experience, and personal attributes required for personnel responsible for planning and overseeing EBW operations.