× Information on this section of ECOLEX comes from the InforMEA Portal which compiled information from MEA Secretariats with the support of the European Union. The accuracy of the information displayed is the responsibility of the originating data source. In case of discrepancy the information as displayed on the respective MEA website prevails. Other questions Tipo de documento Decision Número de referencia XI.(c).43 Fecha Oct 22, 1979 FuenteUNEP, InforMEA Estado Activo Materia Especies silvestres y ecosistemas Tratado Convención para la Protección del Patrimonio Mundial, Cultural y Natural (Nov 23, 1972) Reunión 3e session du Comité Página web whc.unesco.org Resumen The Committee requested the Secretariat to prepare a revised text of the "Operational Guidelines" reflecting the above-mentioned decisions and to present this text to the Bureau at its next session. One question that should be studied in this connection would be the possibility of adding a criterion on integrity for the evaluation of cultural properties.