Commands include the requirement for reporting of emergency destruction of classified material as part of their emergency plan. DISSEMINATION OF CLASSIFIED MATERIAL Commanding officers establish procedures to distribute classified material originated or received by commands. They also establish procedures to limit outside distribution to those activities having a need to know and to reflect any restric- tions imposed by originators or higher authority. Review material prepared for public release to ensure it reveals no classified or sensitive Unclassified information. SECNAVINST 5720.44A outlines the policies and procedures governing public  release  of  official  information  and  the conditions under which a security review is required.  Certain  categories  of  information require review and clearance by the Assistant Secretary of Defense (Public Affairs). Top Secret Material Top Secret material originated within DOD can be disseminated outside DOD only if the originating department or agency gives its consent. Secret and Confidential Material Originators may prohibit the dissemination of their classified materials. Otherwise, you may disseminate Secret and Confidential materials to other departments and agencies of the executive branch of the government. Naval Nuclear Propulsion Information The protection of all strategically important information  is  essential  to  national  security. However, because nuclear-powered ships and the naval  nuclear  propulsion  program  are  major deterrents to war, information about them is a target for hostile intelligence organizations. Therefore,  commands  need  to  maintain  rigid control over all information about these subjects, whether classified or Unclassified. Unnecessary dissemination,  cursory  security  review,  and careless handling of this information help hostile agents in their collection of intelligence. MARKING OF CLASSIFIED MATERIAL Classified markings and annotations or other means of identifying classified information reveal the classification level and degree of protection required for material. They also show the level of protection required for extracted and para- phrased information and help to determine the need to downgrade and declassify material. Therefore,  mark  all  classified  materials  in  a manner that leaves no doubt about the level of classification assigned. Use classification markings that leave no doubt as to which parts contain or reveal classified information or how long the materials  should  remain  classified.  Take  any additional measures needed to protect the materials. The word  document,  as used in this text, means publications, correspondence (such as military and business letters and memoranda), and other printed or written products (such as charts and maps). Although you can easily mark most documents,  you  may  have  difficulty  marking materials  such  as  hardware,  recordings,  and photographs. If the makeup of materials prevent you from marking on them, affix the markings by means of a tag, sticker, decal, or similar device. Affix classification markings so that they are obvious on documents and other types of materials,    including containers for storage. Classified marking and application require- ments vary, depending on the kind of material to which you must apply the markings. Include the following  basic  markings  on  all  classified materials: The identity of the original classification authority The agency or office of origin The overall classification The declassification date or event or the notation   “Originating Agency’s Deter- mination  Required  (OADR)” Any downgrading instructions The  overall  classification  is  the  highest classification of any information contained in or 9-28