To my knowledge any GFSI Scheme is acceptable OR they could be audited by you. This is what the code says:
Products and/or processes of co-manufacturers that are considered high risk shall be required to undergo an audit by the site or other third-party agency to confirm compliance to the SQF Food Safety Code for Manufacturing and agreed arrangements; and ii. Ensure changes to contractual agreements are approved by both parties and communicated to relevant personnel. 220.127.116.11 Records of all contract reviews and changes to contractual agreements and their approvals shall be maintained.
Edited by The Food Scientist, 16 January 2020 - 06:21 PM.