What type of source documents are classified for derivative classification?

The correct response identifies that source documents classified for derivative classification include source control guidance (SCGs) and properly marked source documents. Derivative classification involves using existing classified information to create new documents or materials that may also require classification.

SCGs are official guidance documents that provide instructions on the classification of information and how it can be used. Properly marked source documents, which include original classified materials that bear an appropriate classification marking, provide a framework for derivative classification.

Using SCGs and marked source documents ensures that individuals engaging in derivative classification are relying on verified sources that have undergone a proper classification review, aligning with security protocols. This approach maintains the integrity of classified information while facilitating the responsible dissemination and use of sensitive data.

In contrast, documents that are only marked with a security classification or standard operating procedures alone may not cover the full scope needed to inform derivative classification appropriately. Similarly, unclassified sources from public records do not contribute to the derivative classification process as they do not contain classified information. Therefore, relying solely on classified or marked documents is critical to comply with classification guidelines.