Production Part Approval Process (PPAP)

A structured submission that proves a supplier can consistently meet customer engineering and quality requirements.

A structured submission that proves a supplier can consistently meet customer engineering and quality requirements.

PPAP combines dimensional results, material records and process evidence for customer approval of production parts. It is common in automotive supply chains. Confirm submission requirements with the customer.

What a PPAP includes

Typical submissions contain design records, engineering change documents, DFMEA and PFMEA results, measurement system analysis, capability studies, and control plans.

Suppliers also provide samples and appearance approvals where applicable.

Maintaining PPAP compliance

Equipment moves, tooling changes or supplier changes may require notification and resubmission under the applicable rules. Confirm the submission level and customer-specific requirements rather than assuming every change needs the same package.

Key takeaways

  • PPAP demonstrates a supplier’s readiness for serial production.
  • Process changes often require revalidation and updated submissions.

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