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SECNAVINST 5510.36
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DEPARTMENT OF THE NAVY
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5510
Ser N09N219S123456
(Date)
From: Chief of Naval Operations
To: Commanding General, Marine Corps Systems Command
Subj : MARKING A DERIVATIVELY CLASSIFIED DOCUKENT (U)
1. (S) Mark a document classified from a derivative source
(e.g., a SCG, letter or report, etc. ), with a “Derived fromn line
instead of a “Classified by” line. Include a “Downgrade to” (if
applicable),and “Declassify on” line with all applicable warning
notices and intelligence control markings per paragraphs 6-11 and
6-12 of this regulation.
2. (U) The majority of classified information is derivatively
classified.
Derived from: CNO ltr 5510
Ser 7u532200 of 20 Jan 97
Declassifyon: 20 Jan 2006
B. A. FITZ
Security Officer
THIS PAGE IS ONCIA.SSIFIED BUT ~D “SECSZT” FOR TRAINING
P~osES ONLY
SECRET
6A-B 8ECNAVINST 5510.36