This article makes a case for an international convention on expert determination (ED) and Dispute Boards (DBs) that would require its Contracting States to recognise agreements on ED/DBs and enforce ED/DB decisions. Whilst strong, the case for the convention may not be compelling as there are arguments against it. But at least the time has come for the international legal community to start thinking about and debating the need for such an international regime. This article takes the first step towards imagining this international regime by evaluating a number of key issues relating to its scope of application.