This file contains the digital vector boundaries for International Territorial Level 1, in United Kingdom, as at January 2021. The boundaries available are: (BUC) Ultra generalised (500m) - clipped to the coastline (Mean High Water mark).Contains both Ordnance Survey and ONS Intellectual Property Rights.REST URL of ArcGIS for INSPIRE View Service – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/International_Territorial_Level_1_(January_2021)_UK_BUC/MapServerREST URL of ArcGIS for INSPIRE Feature DownloadService – https://dservices1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/services/International_Territorial_Level_1_January_2021_UK_BUC/WFSServer?service=wfs&request=getcapabilitiesREST URL of Feature Access Service – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/International_Territorial_Level_1_January_2021_UK_BUC_2022/FeatureServer