Our Company was TS 16949 and now we a transiting to ISO:9001:2015. The question has keep up do we need to keep APQP for new product. I have been ask to to provide information on the requirement. I responded the section 8.2.3 thru 220.127.116.11.
If you are planning to let go of IATF 16949 and want to keep only ISO 9001 certificate, then you do not have to include APQP. On the other hand, APQP is in most cases the customer requirement, so if the customer requires it, you should keep it regardless of whether you keep IATF 16949 certificate or not.