The NIST Special Publication (SP) 800 series is a collection of publications that provide guidelines, recommendations, technical specifications, and research on the security and privacy of information and information systems. They are developed to address and support the security and privacy needs of U.S. Federal Government information and information systems. One of the most well-known in the series is NIST Special Publication 800-53, which provides a catalog of security and privacy controls for all U.S. federal information systems except those related to national security.