Many countries face challenges (e.g. lack of tools, data or technical capacity) in applying Article 6 cooperative approaches strategically for NDC implementation or ambition raising aligned with the long-term goal of the Paris Agreement. To address these challenges, the European Commission, Directorate-General for Climate Action (DG CLIMA) has funded the IAA6 Project aiming to support country governments in the development and use of the IAA6 approach through a South-South learning-by-doing approach.  The project is implemented by the United Nations Environment Programme Copenhagen Climate Centre (UNEP-CCC), formerly the UNEP DTU Partnership. UNEP-CCC was established in early 2022 and is a leading international advisory institution on energy, climate and sustainable development. Its work focuses on assisting countries to transition towards low-carbon development paths and supports the integration of climate resilience in national development. UNEP-CCC is actively engaged in implementing UN Environment’s Climate Change Strategy and Energy Programme by delivering technical assistance and analytical work to low- and middle-income countries in context of the Paris Agreement and Sustainable Development Goals.