<Li> Although considered part of the United Kingdom for British nationality purposes, the Crown Dependencies of Jersey, Guernsey and the Isle of Man have local legislation restricting certain employment and housing rights to those with "local status". Although the British citizenship of people from these islands gives them full citizenship rights when in the United Kingdom, it does not give them the rights that British citizenship generally confers when in other parts of the European Union (for example, the right to reside and work). In a similar way, a number of British Overseas Territories have a concept of "belonger status" for their citizens, in addition to their existing British citizenship . </Li> <Li> Citizens of the People's Republic of China may be permanent residents of the Hong Kong or Macau Special Administrative Regions, or have household registration (hukou) somewhere in mainland China . School enrollment, work permission, and other civic rights and privileges (such as whether one may apply for a Hong Kong SAR passport, Macau SAR passport, or People's Republic of China passport) are tied to the region in which the citizen has permanent residence or household registration . Although within mainland China the hukou system has loosened in recent years, movement between Macau, Hong Kong, and the mainland remains controlled . Mainland Chinese who migrate to Hong Kong on one - way permits have their mainland hukou cancelled, while children born in Hong Kong to visiting mainland parents cannot receive mainland hukou unless they cancel their Hong Kong permanent residence status . </Li> <Li> People from Åland have joint regional (Åland) and national (Finnish) citizenship . People with Ålandic citizenship (hembygdsrätt) have the right to buy property and set up a business on Åland, but Finns without regional citizenship cannot . Finns can get Ålandic citizenship after living on the islands for five years, and Ålanders lose their regional citizenship after living on the Finnish mainland for five years . </Li> <Li> The regional government of Puerto Rico began issuing Puerto Rican citizenship certificates in September 2007 after Juan Mari Brás, a lifelong supporter of independence, won a successful court victory that validated his claim that Puerto Rican citizenship was valid and can be claimed by anyone born on the island or with at least one parent who was born there . </Li>

How many countries can you be a citizen of at once