This file contains the digital vector boundaries for International Territorial Level 3, in United Kingdom, as at January 2021.The boundaries available are: (BFE) Full resolution - extent of the realm (usually this is the Mean Low Water mark but in some cases boundaries extend beyond this to include off shore islands).Amendments made to NI projection October 2025.Contains both Ordnance Survey and ONS Intellectual Property Rights.REST URL of Feature Access Service – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/ITL3_JAN_2021_UK_BFE_V4/FeatureServer REST URL of WFS Server – https://dservices1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/services/International_Territorial_Level_3_(January_2021)Boundaries_UK_BFE(V4)__/WFSServer?request=getcapabilities&service=wfs REST URL of MapServer – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/International_Territorial_Level_3_(January_2021)Boundaries_UK_BFE(V4)_/MapServer