Abstract: A computer system that manages compliance information between a buyer and a number of suppliers includes a database and is operable to store supplier guidelines corresponding to a product the buyer desires to purchase, store a list of approved suppliers, provide the suppliers with access to the supplier guidelines, store compliance information indicating whether one or more of the suppliers is in compliance with the supplier guidelines, and selectively update the list of approved suppliers in response to the compliance information. The computer system is also operable to store supplier certificates and to request updated supplier certificates provided directly from a certification issuer.