Recalling decision XXXIII/4 and noting with appreciation the information provided by the Ozone Secretariat at the forty-fifth meeting of the Open-ended Working Group of the Parties to the Montreal Protocol on Substances that Deplete the Ozone Layer in response to decision XXXIII/4 on enhancing the global and regional atmospheric monitoring of substances controlled by the Montreal Protocol,

To request the Secretariat, in consultation with the Multilateral Fund secretariat and relevant experts from the Ozone Research Managers, the Scientific Assessment Panel, and the Technology and Economic Assessment Panel, to provide the following information to the parties at the forty-sixth meeting of the Open-ended Working Group of the Parties to the Montreal Protocol, to be held in 2024:

1. An update of the information provided under decision XXXIII/4, including refining, to the extent possible, the cost estimates associated with enhancing atmospheric monitoring presented in the decision XXXIII/4 report, and providing a list of potential monitoring station locations;
2. Options for sustainable funding to establish new regional monitoring capacities, including an assessment of their advantages and disadvantages, of potential implementation options, and a description of the administrative processes required to operationalize any potential funding options considered, taking into account the discussion at the Thirty-Fifth Meeting of the Parties to the Montreal Protocol on Substances that Deplete the Ozone Layer.