Increasingly,however, there are three 'Offices' for the main data collection operations: the OPCS (Office of Population Censuses and Surveys) which carries out population censuses and household surveys; the BSO (Business Statistics Office) which is part of the Department of Industry and carries out major business surveys (monthly, quarterly, annually, and at longer intervals); and the Customs Statistical Office which deals with external trade statistics.
Vi sono tuttavia tre "Offices" che provvedono sempre più ad effettuare le operazioni di raccolta dei principali dati ; l'O.P.C.S.(Offi06 of Population Censuses and Surveys), che effettua i censimenti demografici e le indagini presso le famiglie ; il B.S.O.