The Millennium Development Goals (MDGs)include benchmarks related to children's health andsanitation. Government and non-governmental organizationsworking to meet these goals by 2015 continue to face manychallenges. Learning about effective approaches that resultin sustainable behavior change in sanitation and hygiene, inparticular handwashing with soap could strengthen effortsand have a positive impact on the well- being of millions ofpeople, especially the poor. In December 2006, the Water andSanitation Program (WSP) launched the Global Scaling upHandwashing Project to apply innovative promotionalapproaches to behavior change to generate widespread andsustained improvements in handwashing with soap at scale.