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MARKING CLASSIFIED EMAIL MESSAGES ON SIPRNET 

R 181200Z SEP 01  ZYW
  FM CMC WASHINGTON DC//C4//
  TO MARADMIN
  BT
  UNCLAS  //N01200//
  MARADMIN 450/01
  MSGID/GENADMIN/CMC WASHINGTON DC/C4//
  SUBJ/MARKING CLASSIFIED EMAIL MESSAGES ON SIPRNET//
  REF/A/DOC/DOD 5200.1-R/JANUARY 1997//
  REF/B/DOC/SECNAVINST 5510.36/17 MARCH 1999//
  REF/C/DOC/MCO 5510.18A/3 FEBRUARY 2000//
  REF/D/DOC/DOD 5200.1-PH/APRIL 1997//
  NARR/REF A IS THE DOD INFORMATION SECURITY PROGRAM REGULATION. REF B
  IS THE DON INFORMATION SECURITY PROGRAM REGULATION.  REF C IS THE
  MARINE CORPS INFORMATION AND PERSONNEL SECURITY PROGRAM MANUAL. REF D
  IS THE DOD GUIDE TO MARKING CLASSIFIED DOCUMENTS.//
  POC/ELAINE CASSARA/GS-14/HQMC C4/-/TEL:DSN 223-3490/COMM:703-693-3490
  /EMAIL:CASSARAES@HQMC.USMC.MIL//
  RMKS/1. PURPOSE. THE PURPOSE OF THIS MESSAGE IS TO REMIND SIPRNET
  USERS THAT EMAIL MESSAGES ON THE SIPRNET SHOULD BE TREATED NO
  DIFFERENTLY THAN ANY OTHER TYPE OF CLASSIFIED DOCUMENT AND MUST BE
  MARKED AS REQUIRED BY REFS A THROUGH C.
  2. BACKGROUND. ONLY INDIVIDUALS DESIGNATED AS ORIGINAL CLASSIFICATION
  AUTHORITIES (OCA)(IAW REF B, PARA 4.4.) MAY DESIGNATE INFORMATION AS            
             CLASSIFIED.  OCA MAY CREATE AND PUBLISH INFORMATION THAT HAS NOT
  BEEN PREVIOUSLY CLASSIFIED IN THE INTEREST OF NATIONAL SECURITY.
  SIPRNET USERS WHO UTILIZE PREVIOUSLY CLASSIFIED INFORMATION MUST
  ENSURE THAT THE APPROPRIATE LEVEL OF CLASSIFICATION IS DEPICTED.
  INFORMATION IN SIPRNET EMAIL MESSAGES SHALL BE DISTINCTLY MARKED
  WHETHER THE INFORMATION IS CLASSIFIED OR UNCLASSIFIED.
  3. SCOPE. THIS MESSAGE SHALL BE DISSEMINATED TO ALL MARINE
  CORPS SIPRNET USERS.  ITS FOCUS IS INTENDED SPECIFICALLY FOR EMAIL
  USE ON THE SIPRNET.
  4. DISCUSSION.  APPROPRIATE CLASSIFICATION MARKING OF SIPRNET EMAIL
  MESSAGES MUST BE DONE NO DIFFERENTLY THAN DOCUMENTS CREATED IN WORD
  PROCESSING, SPREADSHEETS AND PRESENTATION SOFTWARE.  UNTIL AN
  AUTOMATED SOLUTION HAS BEEN EVAULATED AND APPROVED FOR USE IN THE
  USMC, CLASSIFICATION MARKINGS WILL BE DONE MANUALLY.  IN
  CASES WHERE THE EMAIL MESSAGE ITSELF IS UNCLASSIFIED, BUT CONTAINS
  A SECRET OR CONFIDENTIAL ATTACHMENT, THE OVERALL PAGE MARKING SHOULD
  READ EITHER  "SECRET (UNCLASSIFIED UPON REMOVAL OF ATTACHMENT)" OR            
             "CONFIDENTIAL (UNCLASSIFIED UPON REMOVAL OF ATTACHMENT)"
  ACCORDINGLY.  REF (D) IS A HELPFUL GUIDE THAT EXPLAINS, IN AN EASY
  TO UNDERSTAND MANNER, HOW TO MARK CLASSIFIED INFORMATION AND MAY BE
  FOUND AT HTTP://WWW.DTIC.MIL/WHS/DIRECTIVES/ UNDER PUBLICATION
  (REGS, MANUALS, ETC.) IT IS RECOMMENDED THAT SIPRNET USERS REFER TO
  THIS GUIDE FOR A CLEAR UNDERSTANDING OF HOW TO MARK EMAIL MESSAGES
  ON THE SIPRNET.//
  BT