This project completion report synthesises lessons learned from the implementation of the Community Hygiene Output-Based Aid (CHOBA) project between 2012 and 2016. The objective of the project was to use an output-based approach (OBA) to accelerate household ownership of hygienic latrines, with a focus on the rural poor in Vietnam and Cambodia. The project was implemented by the East Meets West Foundation (EMW). 

Overall, the project proved largely successful at incentivising the rural poor to move up the sanitation ladder in both countries. The project reached 113,500 poor households in Vietnam and over 50,500 poor households in Cambodia. Moreover, the project demonstrated the potential and benefits of results-based financing in the sanitation sector, in an environment where prior to the CHOBA project, such an approach had not been rigorously tested before.  

This report is not intended as an independent evaluation of the project, but rather an analysis of lessons learned throughout the course of project implementation. The report focuses on lessons concerning six dimensions: relevance, effectiveness, efficiency, monitoring and evaluation, sustainability, and gender equality.