This report examines the key features and functions of a Mixed-Member Proportional (MMP) electoral system that needs to be considered when engaging in electoral system reform. It provides recommendations that address the President’s election campaign promises on electoral reform. It further reveals the MMP system as the only electoral system that can adequately fulfil the twin imperatives of reintroducing smaller single member (and several multi member) electoral districts and preserving proportional representation (PR) in voting outcomes as outlined in President Maithripala Sirisena’s Election Manifesto.