How is CUI marked in classified documents?

How is CUI marked in classified documents?

• A. CUI appears only in paragraphs/subparagraphs that contain only CUI and is portion marked "(CUI)"; CUI does not appear in the banner/footer
• B. CUI appears in the document banner
• C. CUI is not marked
• D. CUI is indicated in the metadata only

Answer: (A)

CUI marking focuses on the content itself rather than the page as a whole. The handling indicator is placed with the actual text that is CUI, using a parenthetical designation (CUI) right next to that content. If a paragraph or subparagraph contains only CUI material, you still apply that inline marking to the CUI text. The banner or footer of the page is not used to signal CUI for the content within; marking occurs where the CUI content resides so readers know exactly which parts require controlled handling. This precise, inline portion marking helps protect only the relevant sections without blanket-tagging an entire page.

CUI marking focuses on the content itself rather than the page as a whole. The handling indicator is placed with the actual text that is CUI, using a parenthetical designation (CUI) right next to that content. If a paragraph or subparagraph contains only CUI material, you still apply that inline marking to the CUI text. The banner or footer of the page is not used to signal CUI for the content within; marking occurs where the CUI content resides so readers know exactly which parts require controlled handling. This precise, inline portion marking helps protect only the relevant sections without blanket-tagging an entire page.