This file is a lookup between electoral ward/divisions, registration districts and local authority districts in England and Wales as at 31 December 2021. (File Size - 332 KB) Field Names - WD21CD, WD21NM, REGD21CD, REGD21NM, LAD21CD, LAD21NM, FIDField Types - Text, Text, Text, Text, Text, Text, Text, TextField Lengths - 9, 53, 9, 31, 9, 35NB: Electoral Change orders operative in May 2020 postponed until May 2021.FID = 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.