To make everyone understand clearly without confusing the work hereby highlighted it ISO audit is not related to ACCD at all so it will not involve ACCD.
And all external audits either ISO, GMP, from HQ will be handled by the head of dept managers, QMR and Lead Auditor, if there's any requirement being required the supervisors to attend for answering some questions that it is all upon the head of dept managers assign as mainly all external audits supervisors function will be assistance to the head of dept managers in supporting documents and doing your usual assigned function. As it is extremely ridiculous to stop the printing machines for just an audit.
Hope my mail has clear up the sky.