Bilateral ratified treaty of “unlimited duration” between the US and USSR limiting each side’s anti-ballistic missile (ABM) systems in order to prevent the deployment of nationwide ABM defenses, or a base for such a system. Each country is restricted to a single deployment area of 100 ABM launcher and missiles. The treaty prohibits the development, testing and deployment of space-based, sea-based, air-based and mobile land-based systems and components. Compliance is monitored by national technical means of verification and overseen by a Standing Consultative Commission.
