Card processing networks act as an intermediary between an acquirer and an issuer in the authorization of credit card and/or debit card transactions.
Card Networks offer important services to Acquirers and their merchant clients by their participation in SIGIS through the authorization of FSA/HRA debit card transactions and ensuring they meet the IIAS requirements. Card Networks also ensure Card Issuer’s and Plan Administrators that IIAS transactions are only generated from a Certified Merchant.
SIGIS requires any network that uses and supports the SIGIS Technical Specification to process IIAS transactions to become certified.