One of three forms of citizenship introduced by the British Nationality Act 1981 to replace citizenship of the UK and Colonies. On the date on which it came into force (1 January 1983), the Act conferred the citizenship automatically on every existing citizen of the UK and Colonies who did not qualify for either of the other new forms (British citizenship and British Dependent Territories citizenship, now British Overseas Territories citizenship). Acquisition as from that date has been by registration only, and this is confined almost completely to minors. The right to register as a British Overseas citizen was further limited by the Nationality, Immigration and Asylum Act 2002. A British Overseas citizen may become entitled to registration as a British citizen by virtue of UK residence.