Webinar: The CTBT and the 10th NPT Review Conference

Webinar: The CTBT and the 10th NPT Review Conference


Tuesday, 6 October 2020 11:00-12:30 (EST)


The webinar will be hosted on Webex. Please register online by 5 October at 17:00 (EST). Following registration, you will receive an email with instructions on how to join the webinar, including how to download and install Webex.

William Potter
Founding Director, James Martin Center for Nonproliferation Studies

Lassina Zerbo
Executive Secretary, Preparatory Commission for the CTBTO

Izumi Nakamitsu
Under-Secretary-General and High Representative for Disarmament Affairs

Ambassador Rüdiger Bohn
Deputy Federal Government Commissioner for Disarmament and Arms Control and Special Commissioner for Cyber Foreign and Security Policy, German Federal Foreign Office

Ambassador Marjolijn van Deelen
EU Special Envoy for Non-proliferation and Disarmament

Ambassador Mitch Fifield
Permanent Representative of Australia to the United Nations

Ambassador Gustavo Zlauvinen (Argentina)
President-Designate of the Tenth NPT Review Conference


Organized by the CTBTO, this on-line event will discuss the CTBT in the context of the forthcoming NPT Review Conference and examine the critical linkages between the two mutually reinforcing treaties. In particular, panellists will exchange ideas on how to promote full implementation of both treaties, thereby strengthening the nuclear non-proliferation and disarmament regime and bringing us closer to the ultimate goal of a world free of nuclear weapons.

The following questions, among others, will be addressed:

  1. As States Parties prepare for the 10th NPT Review Conference, what is the enduring significance of the historical linkages between the CTBT and the NPT?
  2. How has the CTBT played a role in the NPT Review Process in the past?
  3. In what ways can the full implementation of the CTBT support and strengthen the NPT, and vice-versa?
  4. How should States Parties think about past commitments and action items related to the CTBT? Reaffirm? Revalidate? Update and improve?
  5. What are practical commitments that States Parties can make in this review cycle to strengthen the CTBT and the non-testing norm, as well as support the CTBTO Prep Com as it carries out its work?
  6. How can processes such as the Article XIV Process and the Friends of the CTBT complement and support the NPT Review Process and promote full implementation of both treaties?


The Comprehensive Nuclear-Test-Ban Treaty (CTBT) bans nuclear explosion by everyone, everywhere. The CTBT was negotiated at the Conference on Disarmament in Geneva in the mid-1990s and was formally adopted by the United Nations General Assembly. It opened for signature on 24 September 1996. Since then, the Treaty has reached near-universality, but has yet to enter-into-force.

The 10th Review Conference of the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) has been postponed and is now tentatively scheduled to take place from 4 to 29 January 2021. While disagreement over a test ban precluded its incorporation in the NPT, the need to comprehensively ban all nuclear tests is enshrined in the preamble of the NPT and the CTBT has played a major role in the NPT review process throughout the years – most significantly in 1995 when agreement to conclude a CTBT no later than 1996 was a determining factor in securing the indefinite extension of the NPT.