Can derivative classification be done from declassified documents?

Derivative classification involves using classified information to create new documents or material that also requires classification. It specifically requires the use of information that is currently designated as classified under proper authority. Declassified documents are no longer under the classification system; therefore, the information within them cannot be used to create new classified documents through derivative classification. This is because the purpose of derivative classification is to protect sensitive information that is still subject to classification guidelines, and declassified materials do not meet that criterion.

The rationale behind this rule is to maintain the integrity of the classification system and ensure that sensitive information remains protected appropriately. Understanding this principle is crucial for individuals involved in classification processes to avoid improper handling of information and to ensure compliance with regulations governing classified materials.