All cleared organizations must designate an individual as the Facility Security Officer (FSO) and Insider Threat Program Senior Official (ITPSO).  The FSO and ITPSO are key management personnel.  The FSO is responsible for all security matters. The FSO's responsibilities include, among others: submission of security clearances packages for contractor personnel, briefing and debriefing of cleared employees, acting as the liaison with the organization's DCSA Industrial Security (IS) Representative.