This regulation assigns responsibilities for Army management of the electromagnetic spectrum (hereafter referred to as spectrum management) and for Army participation in Service, Joint, U.S., host-nation, and international spectrum management activities. It issues spectrum-related policies and responsibilities for Army commands, agencies, activities, installation and unit commanders, and users at installations worldwide. It issues radio frequency (RF) spectrum policy and responsibilities for combat developers (CBTDEVs) and materiel developers (MATDEVs). It delineates the elements of the Army Spectrum Supportability Program (ASSP).