The radiofrequency spectrum is the medium that enables wireless communications of all kinds. This report provides an overview of the development of the legal and regulatory framework for spectrum management (SM) at the Fed. level and assesses key issues associated with SM at Fed. agencies. It focuses on: the evolution of the current legal and regulatory framework for domestic SM; the current methods for allocating spectrum domestically and planning for its use; the adequacy of the current U.S. preparatory process for the World Radiocommun. Conferences, at which decisions are made on how to allocate spectrum internationally; and the activities used to increase accountability and encourage the efficient use of spectrum by Fed. agencies. Charts and tables.