Which of the following must a derivative classifier do?

A derivative classifier has a responsibility to evaluate information to determine if it requires classification. This involves analyzing data to assess whether it meets the criteria for classification under established guidelines and regulations. The goal is to ensure that sensitive information is appropriately protected while also maintaining a balance with the need to share unclassified information that does not pose security risks.

Evaluating information helps to identify whether specific details about it can be classified or if they can remain unclassified. This assessment is essential because it helps to safeguard national security interests without unnecessarily restricting access to non-sensitive information.

In contrast, classifying only the information of immediate interest may overlook potentially sensitive data that requires protection. Classifying everything encountered could lead to excessive and unwarranted classification, leading to inefficiencies and unnecessary restrictions. Reclassifying all old documents is also not typically required; existing classifications may still be valid unless a review determines otherwise.