The SEA index is a tailor-made tool for assessing, comparing and improving the environmental performance of yachts.

The intention is that it can be consulted online, in self-service, so that shipowners, captains or other Yachting professionals can carry out a « non-binding » self-assessment. If their results are satisfactory, they may request an external audit, carried out by experts appointed on behalf of the association, with a view to awarding a flag, the SEA flag. If they are not, they will know which criteria related to the use of vessels need to be improved.