Committee on
National Security Systems

Meeting Current and Future Threats

Our Library

The Committee on National Security Systems (CNSS) Library contains those issuances permitted on the internet that address cybersecurity issues. The Library is divided into categories such as Policies, Directives, Instructions, and Advisory Memoranda, as well as offering a Search of all the documents published by the CNSS Secretariat. Find out more about the CNSS Library ...

Latest Posts


  • Operational Security Doctrine for the FORTEZZA User Personal Computer Memory Card International Association (PCMCIA) Card This document is designated FOUO

  • Operational Security Doctrine for the FORTEZZA User Personal Computer Memory Card International Association (PCMCIA) Card This document is designated FOUO

  • Operations Systems Security Doctrine for the FORTEZZA PLUS (KOV-14) Cryptographic Card and Associated Secure Terminal Equipment (STE) This document is designated FOUO

Note: Some of our documents include protected information. To access this protected information, you must use a Federal/DoD PKI/PIV/CAC client certificate. Find out more about certificates and site access ....

Our Mission

The Committee on National Security Systems (CNSS) sets national-level cybersecurity policies, directives, instructions, operational procedures, guidance and advisories for United States Government (USG) departments and agencies for the security of National Security Systems (NSS). It provides a comprehensive forum for strategic planning and operational decision-making to protect NSS and approves the release of INFOSEC products and information to Foreign Governments. Find out more about the CNSS ...