Trinidad and Tobago–United States relations include Extradition and Mutual Legal Assistance treaties, which have been in force since 1999. An agreement on Maritime Cooperation was signed in 1996. There are large numbers of U.S. citizens and permanent residents of Trinidadian origin living in the United States (mostly in New York and Florida), which keeps cultural ties strong. About 20,000 U.S. citizens visit Trinidad and Tobago on vacation or for business every year, and more than 4,600 American citizens are residents. Principal U.S. Embassy Officials include: The U.S. Embassy for the Republic of Trinidad and Tobago is located in the Capital-city Port of Spain, on the
Environment of Trinidad and Tobago Environment of Trinidad and Tobago The environment of Trinidad and Tobago reflects the interaction between its biotic diversity, high population density, and industrialised economy. The flora of Trinidad and Tobago is believed to include about 2,500 species of vascular plants. There are about 50 species of freshwater fish (plus 30 marine species which are occasionally found in freshwater) 400–500 marine fish species, 30 amphibian species, about 90 reptiles, 469 species of birds, and 98 mammal species. Trinidad and Tobago is a signatory to a number of treaties and international agreements: "party to:" Biodiversity, Climate Change, Climate Change-Kyoto Protocol, Endangered Species,