Health Impact Assessment (HIA) is seen as an important development policy and planning tool, as it aids decision-makers and other stakeholders in ensuring that development benefits are evenly shared across affected communities and that negative impacts do not disproportionately fall on the most vulnerable. This session, organized by ADB during the 39th Annual Conference of the International Association for Impact Assessment,  conveyed the business case for undertaking Health Impact Assessment. Caravan-style presentations elaborated on various aspects of ADB’s work on HIAs, including the development of a HIA sourcebook, the regional HIA framework for Special Economic Zones, and strengthening capacity on HIA for development finance institutions and countries and proponents working on or looking to strengthening HIA or Health in Environment Impact Assessment (EIA) elsewhere. The session also showcased a number of demonstration projects in various sectors that show good practice in the conduct of HIA.