British Overseas Territories and coat of arms by the British monarch. Traditionally, the flags follow the Blue Ensign design, with the Union Flag in the canton, and the territory's coat of arms in the fly. Exceptions to this are Bermuda which uses a Red Ensign; British Antarctic Territory which uses a White Ensign; British Indian Ocean Territory which uses a Blue Ensign with wavy lines to symbolise the sea; and Gibraltar which uses a banner of its coat of arms (the flag of the city of Gibraltar). Akrotiri and Dhekelia and Saint Helena, Ascension and Tristan da Cunha are the only British overseas
British National (Overseas) to the master nationality rule. From 1 July 1987 to 30 June 1997, nearly 3.4 million of British Dependent Territories Citizens in Hong Kong successfully registered for British National (Overseas). All BDTCs in Hong Kong lost their BDTC status on 1 July 1997, and any BDTC who did not register as a BN(O) automatically acquired Chinese nationality or British Overseas Citizenship, depending on their ethnicity. BN(O) status has the following unique characteristics: BN(O)s share the following characteristics with other "inactive" categories of British nationality, i.e., British Overseas Citizens (BOCs), British subjects (BSs) and British Protected Persons (BPPs): Provisions regarding eligibility