As the National Security Strategy of 2017 made clear, access to spectrum is a critical component of the technological capabilities that enable economic activity and protect national security. Wireless communications and associated data applications establish a foundation for high‑wage jobs and national prosperity. While American industry continues to extract greater and greater value from spectrum, each technological leap also increases demands on its usage. Those demands have never been greater than today, with the advent of autonomous vehicles and precision agriculture, the expansion of commercial space operations, and the burgeoning Internet of Things signaling a nearly insatiable demand for spectrum access. Moreover, it is imperative that America be first in fifth-generation (5G) wireless technologies — wireless technologies capable of meeting the high-capacity, low-latency, and high-speed requirements that can unleash innovation broadly across diverse sectors of the economy and the public sector. Flexible, predictable spectrum access by the United States Government will help ensure that Federal users can meet current and future mission requirements for a broad range of both communications- and non-communications-based systems.