The purpose of this third study on Access, Participation, Eligibility and Certification (APEC III) is to provide the Food and Nutrition Service (FNS) with key information on the annual error rates and erroneous payments for the National School Lunch Program (NSLP) and School Breakfast Program (SBP) in school year (SY) 2017-18. In addition, APEC III will identify school food authority (SFA), school, and student/household characteristics that may be related to error rates, and identify strategies and actionable guidance for reducing errors.