The ICSID Convention is a treaty ratified by 155 Contracting States. It entered into force on October 14, 1966, 30 days after ratification by the first 20 States. Article 6 of the ICSID Convention requires the Administrative Council of ICSID to adopt rules of procedure for arbitration and conciliation and for the administrative and financial regulation of the Centre.
ICSID Additional Facility Rules
The ICSID Additional Facility was created on September 27, 1978. It offers arbitration, conciliation, and fact-finding services for certain disputes that fall outside the scope of the ICSID Convention.