The Health Systems Strenghtening for Better Maternal and Child Health Project (PDSS) was launched in 2016 in 11 provinces in the Democratic Republic of Congo. The project was financially supported by the World Bank and the Health Results Innovation Trust Fund as well as other development partners. The main goal of the project is to improve coverage and quality of maternal and child health services in targeted areas through Performance-Based Financing (PBF). To achieve this, contracted health facilities receive performance payments according to defined quantity and quality indicators. The project is accompanied by a prospective, rigorous impact evaluation to assess the effect of PBF on health service utilization, quality of care and health outcomes. Prior to the launch of the PBF implementation, a baseline survey was conducted in all the provinces supported by the project from June 2015 to March 2016, covering both households and health facilities. A shorter midline survey was conducted in a subset of the 3 provinces of Kwango, Kwilu and Mai-Ndombe during the third quarter of 2018.