While maritime pollution is often caused at the operational level. the causes can generally be traced back to shortcomings in the ship-shore interface and to poor communication among stakeholders. Here, the environmental responsibilities of maritime stakeholders are systematically analyzed and quantified using an analytic network process. This approach ensures that the most important dependencies and feedbacks among the responsibilities which is applied to a real marine situation (an oil spill) to validate the theoretical basis. A number of latent links between stakeholders' responsibilities and the catastrophic impacts of the spill are identified. (C) 2009 Elsevier Ltd. All rights reserved.