<P> Diplomatic missions between members of the British Commonwealth of Nations are not called embassies, but High Commissions, as Commonwealth nations share a special diplomatic relationship . It is generally expected that an embassy of a Commonwealth country in a non-Commonwealth country will do its best to provide diplomatic services to citizens from other Commonwealth countries if the citizen's country does not have an embassy in that country . Canadian and Australian nationals enjoy even greater cooperation between their respective consular services, as outlined in Canada - Australia Consular Services Sharing Agreement . The same kind of procedure is also followed multilaterally by the member states of the European Union (EU). European citizens in need of consular help in a country without diplomatic or consular representation of their own country may turn to any consular or diplomatic mission of another EU member state . </P> <P> The rights and immunities (such as diplomatic immunity) of diplomatic missions are codified in the Vienna Convention on Diplomatic Relations . </P> <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 . Kolkata, India hosts two Bangladeshi Deputy High Commissions, one at Park Circus and another at Mirza Galib Street . This was done to reduce overcrowding inside the Deputy High Commission . At first the Park Circus was opened and later, the one at Mirza Galib Street . Now both the Deputy High Commissions issue Bangladeshi visa . </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.; 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>

What is the difference between high commission and consulate