The Open Skies Consultative Commission (OSCC) is the implementing body for the Open Skies Treaty. It consists of representatives from each of the 34 States Parties to the Open Skies Treaty. The OSCC meets at the headquarters of the Organization for Security and Co-operation in Europe (OSCE) in Vienna, Austria.
The Open Skies Treaty entered into force in January 2002, and covers territory from Vancouver to Vladivostock. The Treaty establishes a regime of unarmed aerial observation flights over the entire territory of its 34 signatories. It is designed to enhance mutual understanding and confidence by giving all participants, regardless of size, the possibility to obtain information on military or other activities of concern to them. Open Skies is the most wide-ranging international effort to date to promote openness and transparency of military forces and their activities.
The OSCC convenes in monthly plenary meetings. It also has several informal working groups of experts which take up technical issues such as those related to sensors, notification formats, aircraft certification and rules and procedures. The OSCC's main functions are to:
The OSCC was established by Article X and Annex L of the Treaty, and has been in session since the Treaty was signed in March 1992. The OSCC takes decisions by consensus, and has adopted over 90 Decisions since its inception. OSCC Decisions enter into force with the Treaty and have the same duration as the Treaty.
The Open Skies Treaty calls for a review conference to be held every five years. The first such conference took place in 2005, and the second, chaired by the United States, was held in Vienna on 7-9 June 2010.
In a video address to the conference, U.S. Secretary of State Hillary Clinton noted: "The United States remains firmly committed to this Treaty's continued success. We look forward to working with each of you to ensure that this vital instrument for openness and co-operation remains effective for years to come."
A Benelux flight over Bosnia and Herzegovina on 20 August 2008, with observers from Canada, Norway and the Czech Republic on board, marked the 500th flight conducted under the Treaty.