derivative classification is

Derivative classification is the process of incorporating, paraphrasing, restating, or generating in new form information that is already classified, and marking the newly developed material with classification markings consistent with the source information. It involves using existing classified information or classification guidance to determine the classification level of new documents or material. Derivative classifiers do not need original classification authority but must apply classification markings according to the source's instructions. Derivative classification requires adherence to policies such as Executive Order 13526 and involves proper marking, respecting original classification decisions, and carrying forward relevant declassification or downgrade instructions. It is not simply duplicating or reproducing existing classified information but creating new classified materials based on existing classified sources.