This is what AIAG says about PPAP 3rd edition.
PPAP-3 . . . Production Part Approval Process (PPAP Third Edition)
This manual is a requirement for production parts suppliers to DaimlerChrysler, Ford and General Motors. The Third Edition incorporates a number of revisions, which include:
1)Use of “auditable” language and a format consistent with QS-9000 Third Edition to support third party audit;
2) A reordering of the PPAP requirements aligned with the typical process flow;
3) Revision of “Preliminary Process Capability Requirements,” now called “Initial Process Studies,” to provide for the use of either Cpk or Ppk, depending on the amount and type of data available, consistent with the Statistical Process Control,SPC, reference manual;
4) Clarification of when customer notification and/or submission is required;
5) Incorporation of IASG Sanctioned Interpretations specific to PPAP;
6) Requirements for bulk material (see Bulk Material-Specific Appendix);
7) A Heavy Truck Manufacturer-Specific Appendix;
8) An enhanced glossary
The PPAP Third Edition may be used immediately upon its release.