The Department of Defense Chief Information Officer Dana Deasy has told the Senate Committee on Armed Services about the negative effects of the 5G plan. The Federal Communications Commission has claimed that the newly approved 5G plan will not interfere with GPS signals, but the military says this is not the case. When the plan was approved, a 23MHz guard band was necessary to provide a buffer between the Ligado cellular network and GPS. Deasy and other officials have claimed that this will not be enough to keep the signals from interfering. Federal agencies have also conducted tests that prove the FCC order and regulations will not stop the 5G signal from interfering with GPS.