"Though we have acheived progress, our work is not over. That is why I support the mission of the Arms Control Association. It is, quite simply, the most effective and important organization working in the field today." 

– Larry Weiler
Former U.S.-Russian arms control negotiator
August 7, 2018
Defense Bill Restricts CTBTO Funding

The most recent annual National Defense Authorization Act, signed into law on Dec. 12, includes language restricting U.S. financial contributions to the Comprehensive Test Ban Treaty Organization (CTBTO), except for funds related to the International Monitoring System, which detects nuclear test explosions. The CTBTO is the international organization that promotes the Comprehensive Test Ban Treaty in advance of its entry into force and builds up its verification regime.

Infrasound arrays at the International Monitoring System station in Greenland is shown in this August 13, 2009 photo. The U.S. defense authorization bill allows for continued contributions to the monitoring system operated by the Comprehensive Test Ban Treaty Organization.  (CTBTO Preparatory Commission photo)The provision was originally inserted into the House version of the bill. Although not included in the Senate bill, the measure was incorporated into the conference bill, which passed the House on Nov. 14 and the Senate two days later.

The bill also includes an assertion that UN Security Council Resolution 2310, passed in September 2016, calling for the treaty’s early entry into force and the continuation of nuclear testing moratoria does not “obligate the United States nor does it impose an obligation” to refrain from actions that would run counter to the treaty. The amendment’s supporters argue that the United States should not be bound by or contribute financially to a treaty the Senate has not ratified. Opponents of the provision contend that it could signal a weakened U.S. commitment to the global moratoria on nuclear testing and undercut support for the treaty.—ALICIA SANDERS-ZAKRE