This case study of the sustainability ofrural sanitation marketing is part of a wider activityentitled 'Total Sanitation and Sanitation Marketing(TSSM): new approaches to Stimulate and Scale up SanitationDemand and Supply Project,' also known as the GlobalScaling up Sanitation Project. The long-term vision for thiseffort is to help a number of developing countries meet thebasic sanitation needs of the rural poor who do notcurrently have access to safe and hygienic sanitation. TSSMtests proven and promising approaches to create demand forsanitation and improve the supply of sanitation-relatedproducts and services to increase household access to safeand sustainable sanitation; create open-defecation freecommunities; and promote improved hygiene practices. Thoughnot one of the TSSM focus countries, Vietnam is one of thecountries where a piloted approach to enhance and meet ruralsanitation demands has had promising results.