This file contains the digital vector boundaries for Middle layer Super Output Areas in England and Wales, as at 21 March 2021.The Boundaries available are: (BFC) Full resolution - clipped to the coastline (Mean High Water mark).Contains both Ordnance Survey and ONS Intellectual Property Rights.File size: 274 MBVersion amendments (V6) 14th July 2023: Additional Long/Lat/BNG_E/BNG_N coordinates added. Overlapping intersection repair maintenance. (V7) 8th July 2024: NMW column added to attribute table.REST URL of Feature Access Service – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/Middle_layer_Super_Output_Areas_December_2021_Boundaries_EW_BFC_V7/FeatureServerREST URL of WFS Server –https://dservices1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/services/Middle_layer_Super_Output_Areas_December_2021_Boundaries_EW_BFC_V7/WFSServer?service=wfs&request=getcapabilitiesREST URL of Map Server –https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/Middle_layer_Super_Output_Areas_December_2021_Boundaries_EW_BFC_V7/MapServer