The Water and Sanitation Program's(WSP's) Global Scaling up Sanitation Project combinesthe approaches of Community-Led Total Sanitation (CLTS),behavior change communications, and social marketing togenerate sanitation demand and strengthen the supply ofsanitation products and services at large scale. Traininghas played an essential role to scale up rural sanitation inIndia, Indonesia, and Tanzania, where the project has beenimplemented to date. Two key learning's have emerged.First, training skills are essential at all levels(national, regional, and local) to implement an at-scalerural sanitation program; and second, a training programmust focus at the local government level for implementation.