経済的、社会的及び文化的権利に関する国際規約
The Optional Protocol to the International Covenant on Economic, Social and Cultural Rights is an international treaty establishing complaint and inquiry mechanisms for the International Covenant on Economic, Social and Cultural Rights. It was adopted by the UN General Assembly on 10 December 2008, and opened for signature on 24 September 2009. As of October 2018, the Protocol has 45 signatories and 24 state parties. It entered into force on 5 May 2013.