Working place where nonconforming parts were made is somewhere in the plant, parts are there somehow separated and protected against unauthorized handling. Then they are moved somewhere else and wait for picking by recycling company, How are they there separated and protected against unauthorized handling? Then recycling company is picking them so how do they control them before final disposition?
There is
FAQ #11 related to this question. Few questions were asked there and serious answers were given.
It is also example of outsourcing, so auditor can ask about second party auditing, etc.
It can be laughable for Tier-2, ... organizations, but Tier-1 have to treat it seriously.