Full title: "Initiating participatory open data in public policies involving local community in St Lucia" Philip Hippolyte & Shazmane Mandjee Humanitarian OpenStreetMap Team is creating a fourth Open Mapping Hub in the Latin America and the Caribbean region; a region in which HOT OSM has historically had little experiences or collaborations. The Hub's function and structure, are being designed by learning organically from pioneering collaborations during its exploratory phase, Alpha. Five (5) initial projects in the region, using the OpenCities methodology successful in Africa and SouthEast Asia, serve as pilot cases to develop expertise, organizational learning, and networks around the production of missing data for public policy on crucial development issues in countries of the region. The objective is also to learn how to move the paradigm from technical support to co-design with grass-root communities and the insertion of participatory mechanisms in governmental processes. The presentation would incorporate the cases currently in process in Saint Lucia and Mexico, highlighting the challenges and strategies experienced. This talk was presented at State of the Map US 2022. To learn more about State of the Map US 2022, visit https://2022.stateofthemap.us/ Learn more about OpenStreetMap US at https://www.openstreetmap.us/