Optional Protocol to the Convention on the Rights of Persons with Disabilities states parties states that signed, but have not ratified states that have not signed Drafted 13 December 2005 Signed 30 March 2007 Location New York Effective 3 May 2008 Condition 10 ratifications and entry into force of the Convention on the Rights of Persons with Disabilities Signatories 94 Parties 97 Depositary Secretary-General of the United Nations Languages Arabic, Chinese, English, French, Russian and Spanish