- Field Operations
- Overview
- Field Office Locations
- Facility Clearance Branch (FCB)
- Office of Designated Approving Authority (ODAA)
- Industry Tools
- NISPOM/ISLs (Security Library)
- Foreign Ownership, Control or Influence
- Overview
- Contact Us
- FOCI Policy
- FOCI Conferences
- FOCI Mitigation Instruments
- National Interest Determinations
- Outside Director/Proxy Holder Information
- Sample Technology Control Plan
- FOCI Collocation
- FOCI FAQs
- International Division
- Overview
- Limited Access Authorizations (LAAs) for Non-U.S. Citizens
- Policy
- Overview
- Contact Us
- Policy FAQs
- NISPOM/ISLs (Security Library)
- Policy News/Archives
- Agency Agreements
Field Office Locations
Although the Defense Security Service (DSS) is headquartered in Quantico, Virginia, its mission is accomplished through the efforts of highly skilled personnel assigned to field offices located throughout all fifty United States and Puerto Rico. The field offices for Industrial Security Representatives fall under four separate regions: the Northern Region, the Capital Region, the Western Region, and the Southern Region.