Standard identification and markings.

CFR · 2024-01-01 · US · Title 5

(a) (1) (2) (3) (4) (i) The duration of the original classification decision shall be placed on the “Declassify On” line. (ii) The date or event for declassification that corresponds to the lapse of the information's national security sensitivity, which may not exceed 10 years from the date of the original decision. (iii) When a specific date or event within 10 years cannot be established, the classifier will apply the date that is 10 years from the date of the original decision. (iv) The exemption category from declassification. Upon determination that the information must remain classified beyond 10 years, the classifier will apply the letter “X” plus a brief recitation of the exemption category(ies), or the letter “X” plus the number that corresponds to the exemption category(ies) in Section 1.6(d) of the Executive Order. (v) An original classification authority may extend the duration of classification for successive periods not to exceed 10 years at a time. The “Declassify On” line shall be revised to include the new declassification instructions and shall include the identity of the person authorizing the extension and the date of the action. (vi) Information exempted from automatic declassification at 25 years should on the “Declassify On” line be revised to include the symbol “25X” plus a brief reference to the pertinent exemption categories/numbers of the Executive Order. (5) The overall classification of the document is the highest level of information in the docume

official document · source cfr-2024 · id 5:§ 1312.8