This side event at the Youth Forum is organized by United Nations Office on Drugs and Crime. It aims to strengthen global momentum for evidence‑based, youth‑centred drug use prevention systems by showcasing the CHAMPS initiative and highlighting its contribution to the 2030 Agenda for Sustainable Development. It will illustrate how early, science‑based prevention supports healthy development and well‑being (SDG 3), reinforces inclusive and quality learning environments (SDG 4), and reduces inequalities in access to services and opportunities (SDG 10). By emphasizing the importance of youth engagement in the design, implementation, and oversight of national prevention systems, the event will underscore how meaningful participation enhances transparent, responsive, and effective institutions (SDG 16) and strengthens partnerships among governments, youth, and UN entities (SDG 17). Through presentations from CHAMPS countries and youth speakers, the event will highlight the experiences of y...