Welcome to CLTS Foundation

CLTS focuses on igniting a change in collective hygiene behaviour, which is achieved through a process of community-wide action stimulated by facilitators from within or outside the community. It involves no hardware subsidy and does not prescribe latrine models. Dr. Kamal Kar pioneered CLTS in Bangladesh in 1999. Since then it has been implemented in more than 51 countries across the globe. It has been incorporated in the National Sanitation Strategy of at least 18 countries of which 14 are in Africa and the rest in Asia. The CLTS Foundation works through an international team of professionals, practitioners, researchers and policy experts to build capacity and influence policy for enhancing access to sanitation through CLTS.

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Vision & Mission


CLTS Foundation strives to create a world free from open defecation through collective behaviour change by empowered local communities. Improved hygiene practices lead to a clean and healthy environment, improvements in standard of living and greater dignity and safety of women.



Our mission is to unleash the hidden potentials and capabilities of local communities to solve their own problems and take charge of their lives. We use sanitation as an entry point for improving their livelihoods and standard of living as a whole. We aim to make a difference to the lives of millions of people by enhancing access to safe sanitation through strong and nuanced policy and programmes along with a vibrant and informed civil society to promote CLTS on the ground . We take a holistic approach to development and livelihoods of poor communities by channelling the collective energy triggered by the CLTS approach. We draw on existing skills and develop champions at different levels (both human and institutional) in countries in Asia, Africa and Latin America to internalize and mainstream nationwide scaling up of CLTS for the benefit of millions. We aspire to achieve an open defecation free world