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1. Initiating an on-site inspection

OSI techniques have been tested in several exercises.

An on-site inspection is initiated by a request from a State Party.  Each State Party has the right to request such an inspection in the case of a suspicious event. This request can be lodged independently from a consultation and clarification process.  Requests for on-site inspections are presented to the Executive Council and, at the same time, to the Director-General of the Technical Secretariat of the CTBTO.

Each State Party has the right to request an on-site inspection in the case of a suspicious event.
Contamination monitoring is important to ensure the inspectors' safety and health.

A request for an on-site inspection must be based on information about the suspicious event that triggered the request. This information can be drawn from data gathered by the International Monitoring System (IMS) but also from data generated by national technical means of verification.

 

Whatever the source, a request has to contain detailed information about the event, including estimated time and location, the probable environment of the event (i.e., whether it has taken place underground, underwater or in the atmosphere) and, of course, which State Party or State Parties would be inspected.

An on-site inspection request must contain detailed information about the suspicious event that triggered the request. It must also include the results of a consultation and clarification process or an explanation as to why such a process has not taken place.

The State requesting the on-site inspection can send a representative to observe it. Information about this observer is also a required part of the request.

A request must also include the results of a consultation and clarification process if one has been carried out or an explanation as to why such a process has not taken place.