An official website of the United States Government Here's how you know

Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

there are two constraint lines, one that is 350 nautical miles from the baseline and one that is 100 nautical miles from the 2,500 meter isobaths

U.S. Department of State

The Lessons of 1989: Freedom and Our Future