The attached merchant list consists of merchants that implemented a SIGIS* IIAS (Inventory Information Approval System). If you do not find your favorite merchant listed here, check with your merchant to see if they have implemented a proprietary IIAS or plan to implement IIAS in the future.

SIGIS certification is not a requirement of the IRS and Walgreens’ IIAS is fully compliant with IRS requirements.

View the most recent list of IIAS Merchants here.

* Special Interest Group for IIAS Standards