The Qualified Laboratory Documentation section of a PPAP submission provides evidence that all testing has been carried out by competent and approved laboratories.

This documentation confirms that test results submitted as part of the PPAP are valid, reliable, and traceable, whether testing is performed internally or by an external laboratory.

Internal laboratory requirements

If testing is performed in the supplier’s internal laboratory, the PPAP submission must include:

• A copy of the laboratory’s quality certification (e.g. ISO/IEC 17025, IATF 16949, or ISO 9001, as applicable)
• Evidence that the laboratory is authorised to perform the specific tests conducted
• Documentation demonstrating controlled procedures, calibration, and competence

This confirms that internal testing meets recognised industry and customer standards.

External laboratory and material supplier data

Where testing is performed externally, the supplier must provide:

• Documentation from a qualified independent test laboratory, or
• Certified test data supplied by the raw material supplier, where permitted

All external test reports should clearly reference:

• The part or material tested
• The applicable specification or standard
• The test results and pass/fail status

Customer and PPAP expectations

Customers may specify:

• Approved or preferred laboratories
• Required laboratory accreditations
• Additional documentation or validation

These customer-specific requirements must be reviewed and complied with as part of the PPAP submission.

Key considerations

• All laboratories must be qualified for the tests performed
• Test reports must be current and traceable
• Documentation must align with material and performance test records
• Any subcontracted testing must be disclosed

Qualified Laboratory Documentation ensures confidence in test data and supports reliable PPAP approval decisions.