C5.3.1. Documents with Component Parts. If a classified
document has components likely to be removed and used or maintained
separately, each component shall be marked as a separate document. Examples
are annexes or appendices to plans, major parts of a report, or reference
charts in a program directive. If the entire major component is unclassified,
it may be marked on its face, top and bottom, "UNCLASSIFIED," and a statement
added: "All portions of this [annex, appendix, etc.] are Unclassified." No
further markings are required on such a component.