d Caicos Islands
territorial sea: 12 nm
exclusive fishing zone: 200 nm

Tuvalu
territorial sea: 12 nm
contiguous zone: 24 nm
exclusive economic zone: 200 nm

Uganda
none (landlocked)

Ukraine
territorial sea: 12 nm
exclusive economic zone: 200 nm
continental shelf: 200-m or to the depth of exploitation

United Arab Emirates
territorial sea: 12 nm
contiguous zone: 24 nm
exclusive economic zone: 200 nm
continental shelf: 200 nm or to the edge of the continental margin

United Kingdom
territorial sea: 12 nm
exclusive fishing zone: 200 nm
continental shelf: as defined in continental shelf orders or in
accordance with agreed upon boundaries

United States
territorial sea: 12 nm
contiguous zone: 24 nm
exclusive economic zone: 200 nm
continental shelf: not specified

United States Pacific Island Wildlife Refuges
territorial sea: 12 nm
exclusive economic zone: 200 nm

Uruguay
territorial sea: 12 nm
contiguous zone: 24 nm
exclusive economic zone: 200 nm
continental shelf: 200 nm or edge of continental margin

Uzbekistan
none (doubly landlocked)

Vanuatu
measured from claimed archipelagic baselines
territorial sea: 12 nm
contiguous zone: 24 nm
exclusive economic zone: 200 nm
continental shelf: 200 nm or to the edge of the continental margin

Venezuela
territorial sea: 12 nm
contiguous zone: 15 nm
exclusive economic zone: 200 nm
continental shelf: 200-m depth or to the depth of exploitation

Vietnam
territorial sea: 12 nm
contiguous zone: 24 nm
exclusive economic zone: 200 nm
continental shelf: 200 nm or to the edge of the continental margin

Virgin Islands
territorial sea: 12 nm
exclusive economic zone: 200 nm

Wake Island
territorial sea: 12 nm
exclusive economic zone: 200 nm

Wallis and Futuna
territorial sea: 12 nm
exclusive economic zone: 200 nm

West Bank
none (landlocked)

Western Sahara
contingent upon resolution of sovereignty issue

World
a variety of situations exist, but in general, most countries
make the following claims measured from the mean low-tide baseline
as described in the 1982 UN Convention on the Law of the Sea:
territorial sea - 12 nm, contiguous zone - 24 nm, and exclusive
economic zone - 200 nm; additional zones provide for exploitation of
continental shelf resources and an exclusive fishing zone; boundary
situations with neighboring states