World Intellectual Property Organization and the Secretary-General
of the Organization of American States, or their representatives, may
attend meetings of the Committee in an advisory capacity.

ARTICLE XII

The Intergovernmental Committee shall convene a conference
for revision whenever it deems necessary, or at the request of at least
ten States party to this Convention.

ARTICLE XIII

1. Any Contracting State may, at the time of deposit of its
instrument of ratification, acceptance or accession, or at any time
thereafter, declare by notification addressed to the Director-General
that this Convention shall apply to all or any of the countries or
territories for the international relations of which it is responsible and
this Convention shall thereupon apply to the countries or territories
named in such notification after the expiration of the term of three
months provided for in Article IX. In the absence of such notification,
this Convention shall not apply to any such country or territory.

2. However, nothing in this Article shall be understood as
implying the recognition or tacit acceptance by a Contracting State of
the factual situation concerning a country or territory to which this
Convention is made applicable by another Contracting State in
accordance with the provisions of this Article.

ARTICLE XIV