Many federal agencies (56 of 90) responding to GAO’s survey reported using Internet of Things (IoT) technologies. Most often, agencies reported using IoT to: (1) control or monitor equipment or systems (42 of 56); (2) control access to devices or facilities (39 of 56); or (3) track physical assets (28 of 56) such as fleet vehicles or agency property. Agencies also reported using IoT devices to perform tasks such as monitoring water quality, watching the nation’s borders, and controlling ships in waterway locks. Furthermore, IoT use by federal agencies may increase in the future, as many agencies reported planning to begin or expand the use of IoT. However, 13 agencies not using IoT technologies reported they did not plan to use the technologies for a range of reasons, including insufficient return on investment.