Message by the Director-General of the Organization for the Prohibition of Chemical Weapons, Ambassador Rogelio Pfirter, to the 2005 Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons Treaty on the Non-Proliferation of Nuclear Weapons - Seventh Review Conference (2005) Organization for the Prohibition of Chemical Weapons Other official documents 2005-05-01 NPT/CONF.2005/56 AR EN ES FR RU ZH