To facilitate implementation of Article 5, Parties recognized the need for a harmonized framework for elaboration of comparable release inventories of Annex C chemicals, and for detailed state-of the-art guidelines on best available techniques and guidance on best environmental practices.
Development of such a harmonized framework and guidance was initiated by UNEP Chemicals in broad cooperation with experts from developed as well as developing countries, before the Convention entered into force. As mandated by decisions SC-2/5, SC-3/6, SC-4/7 and SC-5/13, the Toolkit has been revised to provide emission factors for sources typical in developing regions, address gaps, and otherwise improve its usefulness and user friendliness.
A harmonized framework for elaboration of comparable release inventories of Annex C chemicals is currently provided by the Toolkit for Identification and Quantification of Releases of Dioxins, Furans and Other Unintentional POPs .