and their member States in respect of the matters governed by this Agreement

1. Any regional economic integration organization that becomes a Party to this Agreement without any of its member States being a Party shall be bound by all the obligations under this Agreement. In the case of such organizations, one or more of whose member States is a Party to this Agreement, the organization and its member States shall decide on their respective responsibilities for the performance of their obligations under this Agreement. In such cases, the organization and the member States shall not be entitled to exercise rights under this Agreement concurrently.

2. In its instrument of ratification, approval, acceptance or accession, a regional economic integration organization shall declare the extent of its competence in respect of the matters governed by this Agreement. Any such organization shall also inform the depositary, who shall in turn inform the Parties, of any relevant modification of the extent of its competence.