× 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 XXIII/8: Investigation of carbon tetrachloride discrepancy Document type Decision Reference number XXIII/8 Date Nov 25, 2011 SourceUNEP, InforMEA Status Active Subject Waste & hazardous substances, Air & atmosphere Treaty Montreal Protocol on Substances that Deplete the Ozone Layer (Sep 16, 1987) Meeting Twenty-Third Meeting of the Parties Website ozone.unep.org Abstract Taking note of the report from the Technology and Economic Assessment Panel and the Scientific Assessment Panel indicating the existence of a discrepancy between the emissions derived from reported production and consumption data from both parties operating under paragraph 1 of Article 5 and those not so operating and those inferred from atmospheric measurements, Noting that the Technology and Economic Assessment Panel is continuing its work and will provide information as called for in decision XXI/8 relating to carbon tetrachloride, To request the Technology and Economic Assessment Panel, in cooperation with the Scientific Assessment Panel, to continue to investigate the possible reasons for the identified discrepancy, considering in particular the extent to which the discrepancy could be due to: Incomplete or inaccurate historical reporting of carbon tetrachloride produced; Uncertainties in the atmospheric lifetime of carbon tetrachloride; Carbon tetrachloride from unreported or underestimated sources from both parties operating under paragraph 1 of Article 5 and those not so operating; To request the Technology and Economic Assessment Panel to report on its work in response to paragraph 1 above to the Twenty-Fourth Meeting of the Parties;