In accordance with Article 28, the treaty entered into force on the ninetieth day after the deposit of the fortieth instrument of ratification, acceptance, approval or accession, provided that at least twenty instruments of ratification, acceptance, approval or accession have been deposited by Members of FAO. Having reached the required number of instruments in order for the treaty to enter into force (40) on 31 March 2004, on which date 13 instruments (including the European Union) were deposited with the Director-General of FAO, the date of entry into force was on 29 June 2004.