What must occur when there are changes in classification?

When there are changes in classification, it is crucial that changes in marking are required. This is because classification markings serve as an essential indicator of the sensitivity of the information contained within a document. If the classification level of a document changes—whether it is upgraded to a higher level of sensitivity or downgraded to a lower level—the associated markings must also be updated accordingly to reflect this new status.

Updating the markings ensures that all individuals who handle the document are aware of the proper classification and its implications for access, storage, and dissemination. Proper marking helps prevent unauthorized access and maintains the integrity of sensitive information. Therefore, the requirement to change the markings is directly tied to the need for accurate representation of the document’s classification status in order to comply with security policies and procedures.