United Nations Secretary-General Ban Ki-moon has verified that the Palestinian applications to join 13 international conventions were "in due and proper form" and have been accepted.
UN spokesman Stephane Dujarric told reporters on Thursday that Ban informed all 193 UN member states of his acceptance.
After Israel failed to carry out a planned prisoner release a few days after the end of a March deadline, the Palestinians retaliated by signing letters of accession to 15 international conventions. Thirteen were deposited at the UN, one in Geneva, and one in the Netherlands.
Riyad Mansour, the Palestinian UN ambassador, said on Tuesday that Palestine will officially become a state party to 13 of the 15 conventions on May 2 - and is ready with more applications to join UN agencies, conventions and treaties depending on Israel's actions.