This report uses statistical modeling techniques to assess the relationship between direct certification performance and specific State practices, seeking best practices and providing recommendations for States to use when developing their Continuous Improvement Plans.

FNS published “The WIC Vendor Management Study, 1998” in July 2001 which examined, in part, the extent to which retail grocers, defined as WIC “vendors” were violating program rules and regulations. The 1998 study is a follow-up to the “WIC Vendor Issues Study, 1991” published by FNS in May 1993.