The October 2018 Semiannual Report to Congress summarizes the Office of Inspector General’s successful work completed from April 1, 2018, through September 30, 2018, to promote excellence, integrity, and accountability within the programs, operations, and management of the U.S. Department of the Interior. Our audit-related activities resulted in total monetary impacts of $101,154,100, with 187 recommendations made and 133 recommendations closed.