The index will be produced as part of the GTI Observatory’s work to stimulate and assist islands and remote locations in the design and implementation of their strategic public policies for sustainable development.

The Index will provide a single benchmark of best practice and innovative solutions, guiding governments and local populations in formulating and improving policies and other instruments.

The ranking will be produced by the GTI Observatory based on a technical evaluation of information provided by participating municipalities, with criteria measuring the effectiveness of actions performed. A star system will highlight virtuous islands.

The Island Sustainability Index will be published once a year listing all the participating islands.