is purchased product is determined to conform to specified purchase requirements?
sub-tier suppliers are selected based on their ability to supply product and/or processes in accordance with stated requirements?
A register of approved sub-their suppliers is maintained, performance is periodically reviewed, and necessary actions are taken if requiements are not met.
all applicable customer requirements, including key charateristics, are flowed down to sub-tier suppliers?
Does purchasing include information on records retention requirements?