Purchasing information shall describe the product to be purchased, including where appropriate— (a) requirements for approval of product, procedures, processes and equipment; (b) requirements for qualification of personnel; and (c) quality management system requirements. The manufacturer shall ensure the adequacy of specified purchase requirements prior to their communication to the supplier. To the extent required for traceability, the manufacturer shall maintain documents and records of relevant purchasing information. 7.4.3 Verification of purchased product: The manufacturer shall establish and implement the inspection or other activities necessary for ensuring that purchased product meets specified purchase requirements. Where the manufacturer intends to perform verification at the supplier's premises, the manufacturer shall state the intended verification arrangements and method of product release in the purchasing information. Records of the verification shall be maintained.