<P> Some cities may host more than one mission from the same country . An example is Rome, where many states maintain missions to Italy and another to the Holy See . It is not customary for these missions to share premises nor diplomatic personnel . At present, only the Iraqi missions to Italy and the Holy See share premises; however, two ambassadors are appointed, one to each country . In the case of the UN's Food Agencies, the Head of Mission to the Italian Republic is usually accredited as Permanent Representative . The United States maintains a separate United States Mission to the UN Agencies in Rome whose head is the United States Ambassador to the United Nations Agencies for Food and Agriculture . </P> <P> Governments of states not recognized by the receiving state and of territories that make no claim to be sovereign states may set up offices abroad that do not have official diplomatic status as defined by the Vienna Convention . Examples are the Taipei Economic and Cultural Representative Offices that represent the government of the Republic of China, Somaliland's Representative Offices in London, Addis Ababa, Rome, and Washington, D.C. and the Hong Kong Economic and Trade Offices that represent the government of that territory . Such offices assume some of the non-diplomatic functions of diplomatic posts, such as promoting trade interests and providing assistance to its citizens and residents . They are nevertheless not diplomatic missions, their personnel are not diplomats and do not have diplomatic visas, although there may be legislation providing for personal immunities and tax privileges, as in the case of the Hong Kong offices in London and Toronto, for example . </P>

Services for citizens of the embassy's country