Each year, before conducting the annual canvass, you must disclose data to the Minister for the Ministry of Housing, Communities and Local Government as part of a national data matching exercise known as the national data match step.1
The national data match step involves the checking of information about existing electors on your register - their name, address including the UPRN where held and, where known, date of birth, against data held by the Department for Work and Pensions (DWP).
The purpose of the exercise is to help you identify properties where residents may have changed. This information should then be used to determine the route you will use to canvass each property.