In British nationality law, the status of British Overseas citizen (BOC) is one of several categories of British national. A British Overseas citizen does not have an automatic right to live in the United Kingdom.
The British Nationality Act 1981 came into force on 1 January 1983, and divided Citizens of the United Kingdom and Colonies (CUKCs) into three categories:
There are categories of British national other than these three, but these consist of persons who were not CUKCs before 1983 or who were connected with Hong Kong before 1997.
British Overseas citizenship is a residual category of British nationality, in that there is very little provision for the acquisition of British Overseas citizenship after 1983; and with the passage of time the category will become extinct. However, when Hong Kong reverted to Chinese rule in 1997, Hong Kong BDTCs who had not applied for the status of British National (Overseas), and who were not already considered Chinese citizens by the PRC government at the time of the handover (such as Indians and other non-Chinese), became British Overseas citizens.
As British Overseas citizenship is a "mop-up" category for CUKCs who did not acquire British citizenship or BOTC in 1983, there are many ways in which someone may have acquired that status.
These include:
Several early independence acts did not contain any provision for the loss of citizenship of the United Kingdom and Colonies by citizens of the newly independent states. A notable case is that of the former Settlements (colonies) of Penang and Malacca in what is now Malaysia. These were combined in 1948 with the nine Malay states (which were protected states rather than colonies) to form the Federation of Malaya. On independence on 31 August 1957, British protected persons from the Malay states lost their BPP status. However, as a result of representations made by the Straits Chinese, known as the "Queen's Chinese", it was agreed by the Governments of the United Kingdom and Malaya that no provision should be made for the withdrawal of CUKC status from the inhabitants of Penang and Malacca, who would consequently be allowed to remain CUKCs as well as citizens of Malaya.