Service Production Part Approval Process (Service PPAP) is a supplement to Production Part Approval Process (PPAP) 4th edition. This document identifies PPAP requirements for all service parts. These requirements are intended to be clarifications to the PPAP process for service parts and not additional requirements.

Source:https://www.aiag.org/source/orders/prodDetail.cfm?productDetail=XO%2DSVPPAP%2D1