The 1963 Convention Supplementary to the Paris Convention of 29 July 1960 (the "Brussels Supplementary Convention" or BSC) was adopted to provide additional funds to compensate damage as a result of a nuclear incident where Paris Convention funds proved to be insufficient. The Brussels Supplementary Convention stipulates that public funds are to be provided for this purpose, not only by the state where the liable operator's nuclear installation is located, but also by contributions from all the parties to the Brussels Supplementary Convention. The Convention is thus based on a strong bond of financial solidarity between its parties.
The Brussels Supplementary Convention is subject to the provisions contained in the Paris Convention including those which define the concepts of "nuclear incident", "nuclear installation", "nuclear substances" and "nuclear damage".
The combined Paris/Brussels regime provides for a compensation amount of not less than EUR 1.5 billion, in three tiers:
(National limit on the operator’s liability, as under the Paris Convention)
minimum €700 million
(Public funds made available by the installation state of the liable operator)
maximum €500 million
[difference between first tier and €1.2 billion]
(Public funds made available by all BSC parties)
[difference between €1.2 billion and €1.5 billion]
TOTAL amount available under the Paris and Brussels Conventions combined
minimum €1.5 billion
The method of calculating each contracting party's financial contribution to the third tier is based 35% on gross domestic product and 65% on installed nuclear capacity, reflecting the sense of responsibility the contracting parties to the BSC place on nuclear power generating states.
The Brussels Supplementary Convention’s geographical scope of application is limited to damage suffered on the territory of a contracting party to the Convention or, under specified circumstances, to nuclear damage suffered in or above maritime areas beyond the territorial sea of a contracting party or in or above a contracting party's exclusive economic zone. However, because the funds to be provided under the second and third tiers are considered "public" money, compensation under the Brussels Supplementary Convention will continue to be made available only to compensate victims in states that have agreed to participate in the supplementary regime.
No state may become or remain a contracting party to the Brussels Supplementary Convention unless it is already a contracting party to the Paris Convention. The Brussels Supplementary Convention will only remain in place for as long as the Paris Convention also remains in force.
The Brussels Supplementary Convention has been amended by protocols adopted in 1964, 1982 and 2004.
The Belgian Government is the depositary for the Brussels Supplementary Convention.
Read more on the Brussels Supplementary Convention on our Multilateral agreements website
The Convention on the Establishment of a Security Control in the Field of Nuclear Energy ("Security Control Convention") and the Protocol on the Tribunal established by the Security Control Convention ("Protocol on the Tribunal") were adopted on 20 December 1957. The Convention came into force on 22 July 1959 and the first judges were appointed on 1 January 1960. The implementation of the security control system (designed to prevent the proliferation of nuclear weapons) has been suspended since the 1970s in order to avoid duplication with similar systems established by Euratom and the International Atomic Energy Agency. For the time being, the jurisdiction of the Tribunal has been limited to resolving differences concerning the interpretation or application of the above-mentioned Paris and Brussels Conventions.
The Paris Convention establishes a nuclear liability and compensation regime to compensate victims of a nuclear accident. The PC is open to OECD member countries as of right and non-member countries with the consent of all the contracting parties to the Paris Convention.