Review the cost recovery systems used by NGOs in Eastern DRC and provide recommendations for improvement. This will include analysis of types of cost recovery systems that are in place, taking into account non-displaced, displaced and vulnerability considerations, and the application of cost recovery mechanisms both in theory (e.g. SOPs) and in practice (e.g. implementation). The review will produce recommendations regarding standardization, flexibility according to context and short-cost-recovery strategies in Eastern DRC and have the potential to influence access to and utilization of health services as well as health service provision and funding strategies.