The School Lunch Eligible Non-Participants Study, conducted for USDA's Food and Nutrition Service, was designed to determine "why children eligible to participate for free and reduced-price meals do not apply or participate" in school nutrition programs.

The study examined the costs charged to SFAs (reported costs), as well as those costs incurred by the school district in support of SFA operations, but not charged to the SFA (unreported costs). Together, the reported costs and the unreported costs are the full cost of meal production.

Prior to 1982, school districts were not required to verify the income or household size declared by households that applied for meal benefits. It was assumed that households were correctly reporting their income, and children from households that applied and declared a sufficiently Low income were given free or reduced-price meals. From 1982 to the present, the verification of household income for at least some of the approved application s for meal benefits has been part of each school district's responsibilities.