Decides, in accordance with paragraph 66 of the Political Declaration of the High-level Midterm Review on the Implementation of the Vienna Programme of Action for Landlocked Developing Countries for the Decade 2014–2024, to hold the third United Nations Conference on Landlocked Developing Countries in 2024 with the mandate to undertake a comprehensive review of the implementation of the Vienna Programme of Action and to formulate and adopt a renewed framework for international support to address the special needs of landlocked developing countries and to strengthen partnerships between the landlocked developing countries and transit countries and their development partners; the Conference should be preceded, where necessary, by national- and regional-level reviews, as well as thematic preparations, in the most effective, well-structured and broad participatory manner, including input from civil society, private sector and all other stakeholders, underlines that intergovernmental mechanisms at the global and regional levels, including those of the United Nations regional commissions, as well as relevant substantive material and statistical data, should be effectively utilized in the review process, designates the Office of the High Representative as the United Nations system-wide focal point for the preparatory process, notes that United Nations system organizations, including the resident coordinators and country teams, the United Nations Conference on Trade and Development, the United Nations Development Programme, the regional commissions and relevant international and regional organizations, within their respective mandates, should provide the support necessary in an integrated and coherent manner and actively contribute to the preparatory process and the Conference itself, stresses that the Conference and the preparatory activities should be organized and carried out in the most effective and efficient manner possible, and decides to take a decision, at its seventy-seventh session, on the organizational aspects, including the venue, duration and specific dates, of the Conference and of possible intergovernmental preparatory committee meetings, to be held, in the most effective manner, before the Conference;