The five levels of PPAP (Production Part Approval Process) are essential in ensuring that suppliers meet customer requirements for production parts. Each level requires different types of documentation and submission. Here are the five levels:
- Level 1: Submission of the Part Submission Warrant (PSW) only.
- Level 2: PSW with product samples and limited supporting data.
- Level 3: PSW with product samples and complete supporting data (the most commonly required level).
- Level 4: PSW and other requirements as defined by the customer.
- Level 5: PSW with product samples and complete data, including an on-site review at the supplier’s manufacturing location.
These levels help ensure consistent part quality and process validation in manufacturing industries.