A new WSP working paper, What Does It Take to Scale Up Rural Sanitation? shares lessons and best practices that were identified to: generate demand for sanitation at the household and community level; increase the supply of affordable, aspirational sanitation products and services; and strengthen local and national governments to lead large-scale sanitation programs. Over the last 30 years, most rural sanitation projects have had pockets of success, but were small in scale and could not be scaled up. Learning how to expand on the successes of small-scale projects to increase access at large scale has been an enduring challenge. Project outcomes often fail the sustainability test once external funding ceases, and the benefits, even if sustained, remain limited to project areas.