requests  only  from  active-duty  commanding officers.  When  OP-09N  grants  an  LAA,  com- manding officers then assume responsibility for briefing the person. They also have the respon- sibility of limiting the person’s access to that information authorized and debriefing the person at the end of the access period. The CNO (OP-09N) will authorize access only for the specific purpose and the specific classified information stated in the request. In the case of non-U. S. citizens, the information requires release from the country of origin. The authorization will be effective for the period of time necessary, subject to reinvestigation every 5 years. Physical custody of classified material is normally refused. Unlike a security clearance or a command-granted access, an LAA is not entered on the Certificate of Personnel Security Investigation, Clearance, and Access. ACCESS BY RESERVE PERSONNEL Reserve personnel who have an appropriate clearance may be granted access to classified information for active-duty training or inactive- duty training. The clearing authority or the authority with the information to be disclosed determines the need for access. Access granted for inactive-duty training should be recorded on the Certificate of Personnel Security Investigation, Clearance, and Access. Inactive Reserve personnel are ineligible for access to classified information unless they are specifically authorized by OP-09N under limited clearance procedures. Reserve personnel are granted access to training editions of the following documents as required to maintain proficiency in their specialties: Codes Cipher systems Authentication systems Call-sign encryption systems Operation instructions Maintenance manuals They are also granted access to COMSEC publica- tions listed as study materials for advancement in rate. Additionally, selected units are authorized access to operational COMSEC materials. Properly cleared inactive-duty personnel taking part in unit drills with these selected units are given access to COMSEC materials as required in the perform- ance of their duties. ACCESS BY RETIRED PERSONNEL Retired  personnel,  including  those  on  the temporary disability retired list, are not entitled to access to classified information because of their present or former status. Commanding officers grant  retired  personnel  access  to  classified information only when it will promote national security.  Commanding  officers  may  submit  a request for access authorization to OP-09N. RECORDING ACCESS Record access granted by a command, prefer- ably  on  the  Certificate  of  Personnel  Security Investigation,  Clearance,  and  Access,  OPNAV Form 5520/20. The commanding officer or his or her designated representative must sign all access entries. The commanding officer makes certain the Comments section of OPNAV Form 5520/20 contains any access restrictions that apply to personnel. ADP SECURITY Automated data processing (ADP) security is a Navywide responsibility. It includes security aspects that contribute to the protection of the total ADP activity, office information system, or network. It involves the following elements: Physical security, administrative proce- dures, operating procedures, and personnel Communications and emanations Hardware, software, and data The level of data processed by an ADP activity or network and the cost of carrying out an ADP security program require careful management of ADP security. All Department of the Navy (DON) activities must regularly review and continuously monitor their ADP security program. The ADP security program will protect ADP activities, office information systems, and net- works and the data they process as outlined in appropriate directives. Refer to the ADP Security  Manual, OP- NAVINST 5239.1A, for a thorough description of ADP security policies and procedures. 9-44