What must the banner markings reflect in newly derived documents?

The banner markings in newly derived documents must reflect the highest level of classification in those documents. When a new document is derived from original classified sources, it may contain information from multiple documents, potentially with varying levels of classification. The intention behind indicating the highest classification level is to ensure that the document is adequately protected; this reflects the most sensitive information it contains. By marking the newly derived document with the highest classification level, it prevents unauthorized access to potentially sensitive information that could be included within it, ensuring compliance with security protocols. This approach safeguards the integrity of classified information and upholds proper handling practices.