1. The present Convention shall enter into force on the thirtieth day after the date of the deposit with the Secretary-General of the United Nations of the twentieth instrument of ratification or accession.

2. For each State ratifying the present Convention or acceding to it after the deposit of the twentieth instrument of ratification or instrument of accession, the Convention shall enter into force on the thirtieth day after the date of the deposit of its own instrument of ratification or instrument of accession.