Who among the following is recognized as a derivative classifier?

Derivative classifiers are individuals who are responsible for determining whether specific information requires classification based on existing classified information. This responsibility extends to various groups of personnel within the Department of Defense (DoD).

The correct choice identifies that all cleared DoD civilian personnel, military personnel, and contractor personnel who have the necessary security clearance have the authority to act as derivative classifiers. This inclusion is crucial because it recognizes the collaborative nature of security classification, where input and understanding from different sectors—military, civilian, and contractors—are essential in upholding national security protocols.

When considering the scope of who can be a derivative classifier, it is important to acknowledge the necessity for a security clearance, as this ensures that only individuals who have been vetted to handle sensitive information are making classification decisions. This collective responsibility enhances the effectiveness and integrity of the classification system by ensuring that a broad range of individuals, who may have varying expertise, can contribute to the classification process.