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1. This Convention shall enter into force three months after five of the entities referred to in paragraphs 1 and 5 of Article 8 thereof have signed the Convention without reservation of ratification or have deposited their instruments of ratification or accession.
2. This Convention shall enter into force for any Contracting Party three months after it has become a Contracting Party in accordance with the provisions of Article 8.
3. Any Specific Annex or Chapter therein to this Convention shall enter into force three months after five Contracting Parties have accepted that Specific Annex or that Chapter.
4. After any Specific Annex or Chapter therein has entered into force in accordance with paragraph 3 of this Article, that Specific Annex or Chapter therein shall enter into force for any Contracting Party three months after it has notified its acceptance. No Specific Annex or Chapter therein shall, however, enter into force for a Contracting Party before this Convention has entered into force for that Contracting Party.