× 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 IV/28: Implementation of paragraph 3 bis of Article 4 of the Protocol Document type Decision Reference number IV/28 Date Nov 23, 1992 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 Fourth Meeting of the Parties decided in Dec. IV/28 to request the Technology and Economic Assessment Panel to study and report, through the Secretariat, by 31 March 1994 at the latest, on a list of products containing controlled substances from Annex B to enable the Sixth Meeting of the Parties, in 1994, to consider the elaboration of such a list as an annex to the Protocol, in accordance with paragraph 3 bis of Article 4 of the Protocol.