States Signatories provide the Preparatory Commission with the necessary financial support.  The Budget of the Preparatory Commission is derived through assessed and voluntary contributions.

Assessed Contributions

According to the Annex on the Resolution which established the Preparatory Commission “the costs of the Commission and its activities, including those of the PTS, shall be met annually by all States Signatories…”  This forms the basis for levying scaled annual dues known as assessed contributions on Member States.

Assessed contributions are calculated in accordance with the United Nations scale of assessments adjusted to take into account differences in the number of UN Members and the number of CTBT States Signatories.

Prompt payment of assessed contributions is an important
barometer to gauge a State’s commitment to, and support
for, the Treaty.

The UN scale for assessing Member States’ contributions is established by the General Assembly on the recommendation of its Committee on Contributions. The original criterion for assessed contributions is based on the ability to pay, with comparative estimates of a State’s national income taken as the fairest guide. Other factors, such as comparative income per capita, the ability of contributors to obtain foreign exchange and, until 1974, the dislocation of national economies arising out of World War II, also were taken into account.

Prompt payment of assessed contributions is an important barometer to gauge a State’s commitment to, and support for, the Treaty. Non-payment of assessed contributions by a State Signatory after 365 days of receipt of the request for payment affects the voting right of such a Member State until such payment is made. This stricture may only be waived by the Commission if it was judged to be due to circumstances beyond the control of the State Signatory in question.


Assessed Contributions cont.

Since 2005 the Commission’s Budget has been prepared using a split currency system.  This was introduced as a measure to mitigate the adverse effects of currency fluctuations.  Therefore, States Signatories’ assessed contributions are now split between US dollars and Euros in accordance with the projected expenses of the Commission in each of these currencies.

For the latest information regarding State Signatories' financial contributions, click here.

The activities of the PTS are financed by all States
Signatories through assessed contributions levied on
the Member States annually. The activities of the PTS
may also be funded by voluntary contributions from
States Signatories.

Voluntary contributions

The activities of the Commission may also be funded by voluntary contributions (see Para 5a) provided by States, international organizations or other entities. Voluntary contributions may be “in-kind” (e.g. equipment) or in cash. They may also include bequests and subventions other than funds held as funds-in-trust by the Executive Secretary.

Voluntary contributions have increased significantly during the last two years. In July 2010, the European Union provided a contribution of €5.3 million. The funds are being used to improve the auxiliary seismic station network, to strengthen on-site inspection and noble gas monitoring capabilities, and to provide technical assistance to countries in Africa, Latin America and the Caribbean region, allowing them to participate fully in the CTBTO’s verification regime. This was the fourth voluntary contribution by the European Union since 2006.

In September 2011, the United States pledged two major voluntary contributions. The first contribution valued at $8.9 million will underwrite contribution in-kind projects implemented by U.S. agencies in coordination with the CTBTO that support the further development of the full range of CTBTO verification and monitoring activities to detect nuclear tests, including enhancing radionuclide and noble gas detection technologies, refining seismic detection techniques, and supporting auxiliary seismic stations.

The second contribution amounting to $25.5 million will be used to reconstruct hydroacoustic station HA04 in the French Southern Territories, thereby completing the hydroacoustic network.

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