Errors made in the allocation of federal funds to institutions for the three campus-based aid programs specified in Title IV of the Higher Education Act are discussed. Funds are allocated directly to participating colleges, which in turn award the money to students, for the following programs: Supplemental Education Opportunity Grants, College Work-Study, and National Direct Student Loans. Attention is focused on misallocation in the funds caused by misreporting of institutional enrollments on the form entitled the "Fiscal-Operations Report and Application to Participate" (FISAP). Error definitions and data collection problems are considered, and formulas for estimating need and allocation error are included. Potential errors were identified by comparing information submitted by about 250 colleges on the FISAP to comparable data submitted on other documents, particularly the Higher Education General Information Survey, and FISAPs for the previous year. For each institution with a FISAP enrollment error, recalculating the allocation for each campus-based program revealed a small overall change, with many institutions being unaffected. Information is also provided on the calculation of the national error levels, and recommendations for the U.S. Department of Education are included. (SW)