R 282006Z FEB 25  MARADMIN 099/25 MSGID/GENADMIN/CMC WASHINGTON DC DCI// SUBJ/PERSONNEL SECURITY ACCESS//  REF/A/DODM 5200.01, VOLUME 1, DATED 28 JUL 2012// REF/B/DODM 5105.21, VOLUME 3, DATED 12 Feb 2018// REF/C/MCO 5510.18B, DTD 30 JAN 2017// NARR/REF A IS THE DEPARTMENT OF DEFENSE INFORMATION SECURITY  PROGRAM: PROTECTION OF CLASSIFIED INFORMATION AND ESTABLISHES POLICY  FOR GRANTING ACCESS. /REF B IS THE DEPARTMENT OF THE DEFENSE  SENSITIVE COMPARTMENTED INFORMATION SECURITY PROGRAM: ESTABLISHES  POLICY FOR GRANTING ACCESS TO SCI./ REF C IS THE MARINE CORPS  INFORMATION AND PERSONNEL SECURITY PROGRAM ORDER AND PROVIDES  SPECIFIC GUIDANCE FOR ALLOWING ACCESS TO CLASSIFIED INFORMATION.//  POC/DC I/C. BAER/CIV/IID DC I/TEL: 703-693-6005/EMAIL:  [email protected], or W.T. POTTS, JR. IID DC I/TEL:  703-695-7162/EMAIL: [email protected].// Purpose: This MARADMIN reinforces current policy and guidance for  personnel who require access to classified information.   2. Background: To receive access to classified information,  personnel must demonstrate a clear need-to-know based on their  current billet assignment.  Commanders make need-to-know  determinations for every person requiring access within their  command. 3. Execution: 3.a. Per the references, only personnel who have demonstrated a  valid need-to-know in direct support of their current billet  assignment shall be granted access to collaterally classified  material or indoctrinated into Sensitive Compartmented Information  (SCI). After review and approval from their Command Security Manager  and/or Special Security Officer, an entry will be made in the Defense  Information Systems for Security (DISS) upon indoctrination.   3.b. Per the references, personnel without a current demonstrated  need-to-know shall be immediately debriefed from their access to  classified information. Upon debrief, the Command Security Manager  and/or the Special Security Officer will make an entry for removal  of accesses in DISS. No member shall have access to classified  information while on administrative leave, after retirement or EAS,  or after resignation from their position, to include voluntary  separation under the Deferred Retirement/Resignation Program or  involuntarily separated.  Active-duty personnel on terminal leave  may retain access based on a need-to-know for turnover purposes  only, pending approval of the Commanding Officer.  All personnel  must be debriefed and disowned on their last day in the Service,  with an entry made in DISS.  Personnel who do not sign their  security debriefings shall be administratively debriefed by the  Command Security Manager and/or the Special Security Officer. 3.c. Command Security Managers and/or Special Security Officers  shall contact the command S/G-6 for removal of information  technology accounts for personnel who no longer have a  need-to-know. Units will follow local procedures for deletion of SCI  Net accounts.    4. Reporting Requirements:   4.a. Command Security Managers and/or Special Security Officers  shall report any personnel debriefed for cause to Headquarters  Marine Corps Personnel Security Program Manager, who will evaluate  the circumstances of the debrief and determine whether the case  should be referred to the USMC Counter Insider Threat Program.  5. Direct all questions to POCs listed on this MARADMIN 6. Release authorized by Lieutenant General M. G. Carter,  Deputy Commandant for Information, U.S. Marine Corps.//