From the Highlights: "Public Law (P.L.) 114-113, 'Consolidated Appropriations Act, 2016' requires the Department of Homeland Security to report event-related spending. Our audit objective was to determine whether DHS' spending on selected hosted or sponsored conferences for fiscal year 2016 was appropriate, reasonable, necessary, and in compliance with the 'Consolidated Appropriations Act, 2016.'"
Department of Homeland Security, Office of Inspector General, Report No. OIG-18-69
Department of Homeland Security Office of Inspector General: https://www.oig.dhs.gov/