This book sets forth the statutes, regulations, and Executive Branch directives that define and govern access to Sensitive But Unclassified (SBU) information. Although there is growing concern in the post 9/11 world that guidelines for the protection of SBU (often referred to as Sensitive Homeland Security Information) are needed, a uniform legal definition or set of procedures applicable to all Federal government agencies does not now exist. Regulations are booked to be under development in the Office of Management and Budget and the Department of Homeland Security. The dissemination of SBU technology is regulated through export controls administered by the Departments of Commerce and State. This book outlines the general applicability of these controls, as well as their applicability to missile and nuclear technology. This book also delineates regulations and directives applicable to the Department of Defense, Department of Energy, Federal Aviation Administration (and Transportation Security Administration), Nuclear Regulatory Commission, and Department of State.