Today the world faces unprecedented challenges in waste management while the state of the municipal waste management sector globally is a matter of concern. To reverse current trends related to waste generation, pollution, and resource management, active collaboration between the various waste actors including governments, civil society, and the private sector will be required along with sustained behavior change. This compendium is designed to help decision-makers - including policy makers, policy professionals, and practitioners-investigate, understand, and respond to waste management challenges in their communities through interventions considering a behavioral science lens. The document contains short case studies that uncover and highlight where and what behavioral tools were applied along three main challenges, that is, getting people to generate less waste, getting people to use waste services, and getting people to be more sustainable with their waste.