PPAP (Production part approval process)

Production part approval process (PPAP) is used in the automotive supply chain for establishing confidence in component suppliers and their production processes, by means of demonstrating that:

"....all customer engineering design record and specification requirements are properly understood by the supplier and that the process has the potential to produce product consistently meeting these requirements during an actual production run at the quoted production rate."

Although individual manufacturers have their own particular requirements, the Automotive Industry Action Group (AIAG) has developed a common PPAP standard as part of the advanced product quality planning (APQP) – and encouraging the use of common terminology and standard forms to document project status.
The PPAP process is designed to demonstrate that the component supplier has developed their design and production process to meet the client's requirements, minimising the risk of failure by effective use of APQP. Requests for part approval must therefore be supported in official PPAP format and with documented results when needed.

 Levels of PPAP

PPAP Level 1

Warrant only (and for designated appearance items, an Appearance Approval Report) submitted to the customer.

PPAP Level 2

Warrant with product samples and limited supporting data submitted to the customer.

PPAP Level 3

Warrant with product samples and complete supporting data submitted to the customer.

PPAP Level 4

Warrant and other requirements as defined by the customer.

PPAP Level 5

Warrant with product samples and complete supporting data reviewed at the organization's manufacturing location.

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