446. Acquisition by naturalisation, based on five years' residence.

Prior to 1983, naturalisation was the method by which adult aliens and adult British protected persons, and no others, acquired citizenship1; and those who had the status of British subject or Commonwealth citizen acquired citizenship by registration2. Acquisition by minors was, and still is, by registration. Since the expiry of the periods during which previous registration provisions were extended in special cases3, adult Commonwealth citizens who do not hold another form of British nationality4 now normally have to apply for naturalisation in order to acquire citizenship5. British citizenship and British overseas territories citizenship6 are the only forms of British