Security classification guidance is any instruction or source that sets out the classification of a system, plan, program, mission, or project. It is initially issued by Original Classification …

As an integral part of the Defense Security Enterprise, must identify and protect the DoD’s critical information, operations, and infrastructure through informed classification decisions.

Sensitivity is based upon a calculation of the damage to national security that the release of the information would cause. The United States has three levels of classification: Confidential, …

Dec 12, 2025 · Navigate the legal framework governing U.S. national security information, from classification standards to personnel clearances and physical handling requirements.

No other categories shall be used to identify official information or material as requiring protection in the interests of national security except as otherwise expressly provided by statute. The …

Discover security classification levels, their types, examples, and key facts about classified documents in our informative guide.

The purpose of security classification guidance is to communicate classification decisions and provide a means for uniform derivative classification and consistent application of classification …

Top Secret refers to national security information or material which requires the highest degree of protection. The test for assigning Top Secret classification is whether its unauthorized …

A classification level indicates the relative importance of classified information to national security and thereby determines the specific security requirements applicable to that information.

Jan 31, 2024 · This publication provides a methodology to map types of information and systems to security categories (i.e., confidentiality, integrity, and availability) and impact levels (i.e., low, …