secret - (SPAWAR) is - The US Navy

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SECNAVINST 5510.36
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SECRET
DEPARTMENT OF THE NAVY
OFFICEOF THECHIEF OF NAVAL OPERATIONS
OC 20350-2000
WASHINGTON,
SECRET/RESTRICTED DATA/CRITICAL NUCLEAR WEAPONS DESIGN
INFORMATION
From: Chief of Naval Operations
TO: Commanding Officer, Naval Research Laboratory
Subj : MAIUING RD (INCLUDING CNNDI) AND FRO (U)
IN REFLY REFER TO
5510
Ser N09N219S123456
(Date)
1. (S/RD) Portions containing Restricted Data shall have the
abbreviated marking “RD.”
2. (C/F~) Portions containing Formerly Restricted Data shall
have the abbreviated marking “FRD.”
3. (S/P.D)(N) Restricted Data portions that are also Critical
Nuclear Weapons Design Information shall be marked with “N” in
separate parentheses following the classification level portion
marking. CNWDI is always Top Secret or Secret RD.
4. (U) Mark the face of.documents containing RO (including
CNWOI) and FRO with che applicable warning notice at the lower
left corner. These documents shall not be marked with
downgrading or declassification instructions. If a document
contains both RO and FRO, overall markings will reflect only the
RD marking as this marking takes precedence.
Derived from: CG-W-5
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A. A. ANDERSEN
Security Manager
“CRITICAL NuCLEAR WSAPO”NS DESIGN INFORMATION, DOD DIRECTI~
5210.2 APPLIES”
TEIS PAGE IS ONCLASSI!JIED BUT MARXED “SECRET/RESTRICTED
DATA/CEUTICU NUC~ WEAPONS DESIGN INFORMATION” FOR TRAINING
POF@OSES ONLY
SECRET sECNAVINST 5510.36
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