Committee on National Security Systems Instruction 1253

Citation: Committee on National Security Systems Instruction 1253, Security Categorization and Control Selection for National Security Systems (CNSSI-1253) (Oct. 2009).

Overview
This instruction states that the Director of National Intelligence and the Secretary of Defense have directed that the processes described in NIST SP 800-53, revision 3 (as amended by the instruction), and the NIST security and programmatic controls contained in SP 800-53 apply to national security systems. Using the controls in SP 800-53, this instruction provides categorization and corresponding baseline sets of controls for national security systems.