× 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. Decision XVII/23: Report on the establishment of licensing systems under Article 4B of the Montreal Protocol Document type Decision Reference number XVII/23 Date Dec 12, 2005 SourceUNEP, InforMEA Status Active Subject Waste & hazardous substances, Air & atmosphere Treaty Montreal Protocol on Substances that Deplete the Ozone Layer (Sep 16, 1987) Meeting Website ozone.unep.org Abstract The Seventeenth Meeting of the Parties decided in Dec. XVII/23: To note with appreciation that 107 Parties to the Montreal Amendment to the Montreal Protocol have established import and export licensing systems, as required under the terms of the Amendment; To note also with appreciation that 37 Parties to the Montreal Protocol that have not yet ratified the Montreal Amendment have also established import and export licensing systems; To recognize that licensing systems bring the following benefits: monitoring of imports and exports of ozone-depleting substances; prevention of illegal trade; and enabling data collection; To urge all the remaining 29 Parties to the Montreal Amendment to provide information to the Secretariat on the establishment of import and export licensing systems, and for those that have not yet established such systems to do so as a matter of urgency; To encourage all remaining Parties to the Montreal Protocol that have not yet ratified the Montreal Amendment to ratify it and to establish import and export licensing systems if they have not yet done so; To urge all Parties that already operate licensing systems to ensure that they are implemented and enforced effectively; To review periodically the status of the establishment of licensing systems by all Parties to the Montreal Protocol, as called for in Article 4B of the Protocol.