The paper uses the institutional analysis and design (IAD) framework, which looks at how actors are involved in repetitive situations affected by a biophysical world, a cultural world and a set of rules, in order to understand how different institutional structures can accommodate the power of both internal and exogenous forces that shape the trajectory of sustainable innovation. After a general overview of stakeholders and policy instruments in the biodiesel programme, the paper provides a brief institutional analysis of the interaction between actors and processes, with a view to offering insights into the current effectiveness of the programme as a sustainable rural development tool.