HIFLD Open Security Zones
Homeland Infrastructure Foundation-Level Data (HIFLD)
Department of Homeland Security
Info
Resources
Maintainer: DRP, DL
Downloaded on: 2025-08-26
Notes:
This layer represents Security Zones as specified by the National Archives and Records Administration Code of Federal Regulations, Title 33 parts 147 and 165 pertaining to the United States Coast Guard.