Facility Security Officer. Designated by the senior USGS official having responsibility for the security of a Federal owned or leased space. The FSO serves as the Designated Official (as defined by the Federal Property Management Regulations (FPMR) Code of Federal Regulations (CFR) Title 41, Part 101-20.003) or assists the Designated Official and administers the physical security program through the Regional Security Officer or Center Security Officer as set forth in this handbook for an office, building, or other facility. At the National Center, the Chief, Office of Management Services, serves as the designated official, and the USGS Security Manager serves as the FSO.