Article 38

1. [Conference] This Convention may be revised by a conference of the members of the Union. The convocation of such conference shall be decided by the Council.

2. [Quorum and majority] The proceedings of a conference shall be effective only if at least half of the States members of the Union are represented at it. A majority of three-quarters of the States members of the Union present and voting at the conference shall be required for the adoption of any revision.