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Resource | Research and Data | Assessing/Improving Operations Best Practices in USDA Disaster SNAP Operations and Planning

Through an examination of 5 disasters in 4 states, this study develops recommendations for best practices in planning for, implementing, and operating D-SNAP. 

12/14/2023
Resource | Research and Data | Impacts/Evaluations Evaluation of Technology Modernization for SNAP Benefit Redemption Through Online Transactions

​This study evaluated the implications of online SNAP benefit redemption on program integrity. In addition, the study gathered basic information about online benefit redemption, including the use in urban and rural settings.

09/26/2023
Data Visualization
SNAP Retailer Management Year End Summary FY 2022

This dashboard was created to share information about Supplemental Nutrition Assistance Program retailer participation during fiscal year 2022. 

07/27/2023
Resource | Research and Data | Payment Accuracy and Program Integrity WIC Erroneous Payments to Vendors: Annual Estimates for FY 2011

This report provides improper payment estimates for fiscal year 2011 using a methodology for “aging” the 2005 bookend study. The methodology yields nationally representative estimates of the number of vendors that over- and undercharged and the amount of over- and undercharges across all WIC vendors.

12/01/2012
Resource | Research and Data | Payment Accuracy and Program Integrity WIC Erroneous Payments to Vendors: Annual Estimates for FY 2010

This report provides improper payment estimates for FY 2010 using a methodology for “aging” the 2005 bookend study. The methodology yields nationally representative estimates of the number of vendors that over- and undercharged and the amount of over- and undercharges across all WIC vendors.

05/01/2012
Resource | Research and Data | Payment Accuracy and Program Integrity WIC Erroneous Payments to Vendors: Annual Estimates for 2009

This report provides improper payments estimates for FY 2009 using a methodology for “aging” the 2005 bookend study. This updates previous reports providing estimates from 2005 to 2008.

05/01/2012
Resource | Research and Data | Payment Accuracy and Program Integrity Improper Payments to WIC Vendors 2005-2008

About every 7 years, FNS performs a nationally representative study to examine the extent of error and abuse among food vendors authorized to accept WIC vouchers. The last bookend study was the 2005 WIC Vendor Management Study, which used fiscal year 2005 expenditure data to derive an estimate for 2004. Between bookend studies, there is a need to derive annual estimates of the level of improper payments for compliance with the Improper Payments Information Act of 2002. The purpose of the subsequent annual studies was to provide annual updates to the bookend studies using the developed aging methodology.

05/01/2012
Resource | Research and Data | Participation Characteristics National Survey of WIC Participants II

This report, the first of three, addresses the first objective of the study, which is to explore the characteristics and experiences of WIC participants.

04/01/2012
Resource | Report to Congress A Report to Congress – Executive Summary

This report responds to a Congressional mandate for FNS to establish a long-range plan for the development and implementation of state agency Management Information Systems in the Special Supplemental Nutrition Program for Women, Infants and Children.

03/20/2012
Page updated: September 16, 2025