A lookup file between Local Authority District (2019) to 2020 Covid Infection Survey Geography in Great Britain, as at 1 October 2020. (File size - 64KB) Field Names - LAD19CD, LAD19NM, LAD19NMW, CIS20CD, FIDField Types - Text, Text, Text, Text, NumericField Lengths - 9, 35, 24, 9FID = The FID, or Feature ID is created by the publication process when the names and codes / lookup products are published to the Open Geography portal. REST URL of Feature Access Service – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/LAD19_CIS20_GB_LU_ed5b75bc28e24b5d81b393cba28c48d3/FeatureServer