Art. 26. 1. The High Contracting Parties shall communicate to one another, through the Director-General of the United Nations Educational, Scientific and Cultural Organization, the official translations of the present Convention and of the Regulations for its execution.
2. Furthermore, at least once every four years, they shall forward to the Director-General a report giving whatever information they think suitable concerning any measures being taken, prepared or contemplated by their respective administrations in fulfilment of the present Convention and of the Regulations for its execution.