"The Principles of Classification Management for the Intelligence Community (IC) are intended to facilitate and align IC decisions on classifying and marking Classified National Security Information (CNSI), particularly categories of CNSI common to multiple agencies. The Principles articulate norms IC elements will follow in exercising their authorities when classifying and marking intelligence information, products, and reports. Classifying and marking CNSI accurately and consistently are critical to ensuring accountability and transparency throughout the Community. The requirement to do so will grow in importance as the IC moves increasingly into an era of shared data and must respond to new technology that is changing ways information is communicated." The seven principles are listed in the document, each accompanied by a brief explanation.
Office of the Director of National Intelligence: https://www.dni.gov/