× 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 XI/20: Procedure for new substances Document type Decision Reference number XI/20 Date Nov 29, 1999 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 Eleventh Meeting of the Parties decided in Dec. XI/20: Recalling decisions IX/24 and X/8 on control of new ozone-depleting substances, Noting that the issue was discussed at the Eleventh Meeting of the Parties, To continue to give full consideration to ways to expedite the procedure for adding new substances and their associated control measures to the Protocol and for removing them therefrom.