The Department of Education (Education) provided over $122 billion in grants, loans and work study funds to help students pay for college at about 6,000 schools in fiscal year 2017. Education is responsible for certifying that these schools are eligible for and capable of properly administering federal student aid funds. Schools are required to submit an annual compliance audit that provides information on schools' administrative capability, which Education considers in its school certification decisions. The Government Accountability Office (GAO) was asked to review Education's process for certifying schools to receive federal student aid. This report examines: (1) how Education certifies schools to administer federal student aid and how frequently schools are approved and denied certification; and (2) the role of compliance audits in the certification process and what, if any, steps Education has taken to address the quality of the audit information. GAO analyzed data on school certification outcomes for calendar years 2006-2017 (when GAO determined data were most reliable); reviewed data and reports summarizing Education's reviews of compliance audit quality for fiscal years 2006-2017; reviewed a non-generalizable sample of 21 school certification decisions from fiscal years 2015 and 2016, selected for a mix of decisions, school characteristics, and geographic regions; examined relevant federal laws, regulations, policy manuals and guidance; and interviewed Education officials.