Citation[]
Committee on National Security Systems, Security Categorization and Control Selection for National Security Systems (CNSSI No. 1253) (Mar. 27, 2014) (full-text).
Overview[]
This Instruction provides U.S. federal government departments, agencies, bureaus, and offices with a process for security categorization of national security systems that collect, generate, process, store, display, transmit, or receive national security information. In addition, this instruction serves as a companion document to NIST Special Publication 800-53, Revision 3.
This Instruction should be used by information systems security engineers, authorizing officials, senior information security officers, and others to select and agree upon appropriate protections for an NSS.