Resource Centers

PPAP Resource Center

The Production Part Approval Process (PPAP) is a universal, AIAG-defined approach used across general manufacturing industries to prove that a supplier understands all customer requirements and can consistently produce conforming product. Although originally developed for the automotive sector, the AIAG PPAP framework is now widely used across general industries.

This resource center brings together practical explanations, templates, examples, and expert guidance to help you understand and apply PPAP confidently—whether you are preparing a submission, auditing one, or training your team.

PPAP stands for Production Part Approval Process

What Is PPAP and Why Does It Matter?

PPAP is a structured, evidence-based process that ensures the supplier’s manufacturing process can reliably produce parts that meet customer specifications. It enhances communication, reduces launch risk, clarifies expectations, and serves as a cornerstone of customer–supplier trust.

PPAP is used when:

  • Introducing a new product
  • Making changes to a part, process, or supplier
  • Validating changes in materials or tooling
  • Demonstrating process capability during a launch

A Little Background on PPAP and APQP

PPAP fits within the broader Advanced Product Quality Planning (APQP) framework..

This means that PPAP reflects data from a significant production run, performed using the actual manufacturing process intended for regular production.

The 18 PPAP Elements: A Complete Evidence Package

PPAP documentation consists of 18 required elements, each designed to demonstrate understanding, control, and capability. These include:

  • Design Records

  • Authorized Engineering Changes

  • Customer Engineering Approval

  • DFMEA

  • Process Flow Diagram

  • PFMEA

  • Control Plan

  • MSA (e.g., Gage R&R)

  • Dimensional Results

  • Material & Performance Test Results

  • Initial Process Studies (capability)

  • Qualified Lab Documentation

  • Appearance Approval Report (when applicable)

  • Sample Production Parts (required)

  • Master Samples

  • Checking Aids

  • Customer-Specific Requirements

  • Part Submission Warrant (PSW)

Submission Levels and Customer Requirements

PPAP uses five levels of submission, determined by the customer—not the supplier.

Even when a lower submission level is selected, all 18 elements must still be completed and retained.

This ensures alignment, transparency, and proper documentation control between supplier and customer.

How PPAP Supports Successful Product Launches

PPAP confirms:

  • The design is understood

  • The process is stable

  • The measurement systems are capable

  • Critical/special characteristics are controlled

  • Risks have been identified and mitigated (DFMEA/PFMEA)

  • Data supports quality readiness

When suppliers and customers collaborate using the PPAP framework, launch issues are reduced and long-term process stability improves.

Who This Resource Center Is For

This resource center supports:

  • Quality Engineers and Managers

  • Supplier Quality Teams (SQAs / SQEs)

  • Manufacturing Engineers

  • APQP / Launch Teams

  • Auditors and Compliance Teams

  • Any organization using AIAG PPAP for general manufacturing

Tools and Training for PPAP

QualityTrainingPortal.com offers cost-effective online training in PPAP and related topics including APQP, Design and Process FMEAs, and Basic and Advanced SPC.