National Policy on Classified Information Spillage

Citation
Committee on National Security Systems, National Policy on Classified Information Spillage (CNSS Policy No. 18) (June 2006) (full-text).

Overview
This policy applies to the spillage of classified national security information on any information system (IS), be it government or non-government systems. It provides a framework for the consistent handling of the spillage] of [[classified national security information onto an unclassified information system, or higher-level classified national security information onto a lower level classified information system or onto an information system not accredited to the appropriate level.