The establishment of the Combined Exclusive Maritime Zone for Africa (CEMZA) is a strategic objective of Africa’s Integrated Maritime Strategy. The intention is to create a common maritime space to facilitate geostrategic, economic, political, social and security benefits and minimise transnational threats. This report unpacks the nature and implications of the concept. Although the challenges of implementation are enormous and the prognosis appears bleak, the report identifies some examples from which best practices can be drawn.