International law codified in a treaty signed in 1982 covering the status and use of territorial waters , sea lanes, and ocean resources.
Originally signed by 117 countries, the treaty had some 140 state parties by the early 21st century. The treaty defines territorial waters as those extending 12 nautical mi (22 km) beyond a country's coast and gives to each country exclusive fishing and mining rights in waters extending to 200 nautical mi (370 km) from its coast. See also high seas .