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.

Arms Control: Seismic Monitoring

Signed at Rabat June 24, 2020; entered into force June 24, 2020.  Extension of agreement signed December 31, 2008: TIAS 08-1231.

Download Agreement [325 KB]

U.S. Department of State

The Lessons of 1989: Freedom and Our Future