International Monitoring System (IMS)
The International Monitoring System (IMS) is a worldwide network of observational technology that will help to verify compliance with and detect and confirm violations of the Comprehensive Nuclear Test-Ban Treaty (CTBT). When complete, the IMS will consist of 337 monitoring facilities.
For an interactive map showing the status of the IMS, click here.
![Date: 2011 Description: Interactive map showing the status of the International Monitoring System. © CTBTO image](/img/11/42927/IMS_Current_500_1.jpg)