The Classified Support Branch’s (CSB) mission is to provide the Office of the Secretary and Deputy Secretary of Defense with classified correspondence and document services to include processing and tasking of sensitive Compartmented Information items, North Atlantic Treaty Organization items (NAT0) and Alternative Compensatory Control Measure (ACCM) items.
Service does not include Special Access Program (SAP). SAP items will be processed by the OSD Special Programs Offices.
CSB also provides courier service every half hour to the offices of the Secretary of Defense, the Deputy Secretary of Defense and the DoD Executive Secretary. The CSB Normal days and hours of operation are Monday through Friday from 0600 until 1830.