The OCB intervention in Maban started in 2011 and quickly grew to become the single largest intervention for 2012. Within this extremely challenging and rapidly developing context OCB deployed significant resources to meet the needs of the refugee population. The evaluation looks at the first months of the intervention between the time of the initial assessment and the handover to the emergency desk at the height of the emergency. The report finds that the intervention was seen positively and the outputs highly appreciated by everybody involved. The evaluation does however highlight some areas for improvement in the future as well as identify some structural issues in the organisation of operations in emergencies. The report includes a management response.