1. [States and certain intergovernmental organizations]
a) Any State may, as provided in this Article, become party to this Convention.
b) Any intergovernmental organization may, as provided in this Article, become party to this Convention if it
(i) has competence in respect of matters governed by this Convention,
(ii) has its own legislation providing for the grant and protection of breeders' rights binding on all its member States and
(iii) has been duly authorized, in accordance with its internal procedures, to accede to this Convention.
2. [Instrument of adherence] Any State which has signed this Convention shall become party to this Convention by depositing an instrument of ratification, acceptance or approval of this Convention. Any State which has not signed this Convention and any intergovernmental organization shall become party to this Convention by depositing an instrument of accession to this Convention. Instruments of ratification, acceptance, approval or accession shall be deposited with the Secretary-General.
3. [Advice of the Council] Any State which is not a member of the Union and any intergovernmental organization shall, before depositing its instrument of accession, ask the Council to advise it in respect of the conformity of its laws with the provisions of this Convention. If the decision embodying the advice is positive, the instrument of accession may be deposited.