This file contains the digital vector boundaries for Westminster Parliamentary Constituencies in Great Britain, as at 31 December 2017. The boundaries available are: 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);Full resolution - clipped to the coastline (Mean High Water mark); Generalised (20m) - clipped to the coastline (Mean High Water mark); Super generalised (200m) - clipped to the coastline (Mean High Water mark) and 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://ons-inspire.esriuk.com/arcgis/rest/services/Electoral_Boundaries/Westminster_Parliamentary_Constituencies_December_2017_Boundaries_GB/MapServer/exts/InspireView REST URL of ArcGIS for INSPIRE Feature Download Service - https://ons-inspire.esriuk.com/arcgis/rest/services/Electoral_Boundaries/Westminster_Parliamentary_Constituencies_December_2017_Boundaries_GB/MapServer/exts/InspireFeatureDownload REST URL of Feature Access Service - https://ons-inspire.esriuk.com/arcgis/rest/services/Electoral_Boundaries/Westminster_Parliamentary_Constituencies_December_2017_Boundaries_GB/FeatureServer