Classification Levels Law and Legal Definition

Pursuant to 49 CFR 8.5 [Title 49 – Transportation, Subtitle A -- Office of the Secretary of Transportation], the term classification levels means “the following three levels at which information may be classified:

(a) Top secret. Information that requires the highest degree of protection, and the unauthorized disclosure of which could reasonably be expected to cause exceptionally grave damage to the national security that the original classification authority is able to identify or describe.

(b) Secret. Information that requires a substantial degree of protection, and the unauthorized disclosure of which could reasonably be expected to cause serious damage to the national security that the original classification authority is able to identify or describe.

(c) Confidential. Information that requires protection and the unauthorized disclosure of which could reasonably be expected to cause damage to the national security that the original classification authority is able to identify or describe.”