Final answer:
The United States recognizes freedom of the seas through the United Nations Convention on the Law of the Sea (UNCLOS), which became effective in 1994 and is supported by Article VI of the US Constitution.
Step-by-step explanation:
The United States acknowledges freedom of the seas under the United Nations Convention on the Law of the Sea (UNCLOS), which was signed in 1982 and came into force in 1994. This international treaty establishes guidelines for how the oceans are used and protected, delineating the limits of territorial waters, establishing economic zones, and granting passage rights through sea lanes. Additionally, in accordance with Article VI of the US Constitution, all treaties made under the authority of the United States are considered the supreme law of the land, which underscores the importance and binding nature of such international agreements, including UNCLOS, for the US.