Sea Index's emissions rating tool adopted at regional level

1 July 2025 • by Lucy Dunn

The Superyacht Eco Association SEA Index, an initiative of the Yacht Club de Monaco, has been officially incorporated into the Agreements for a Sustainable Mediterranean, an environmental action plan led by the Région Sud (Provence-Alpes-Côte d’Azur).

SEA Index's CO2 certification process provides an independent, Lloyd’s Register-verified framework for accurately measuring and reducing carbon emissions designed for yachts over 24 metres. Beyond carbon, the Index also addresses noise and air pollution, offering refit recommendations and access to an international network dedicated to sustainability. Previously Sea Index had been adopted by individual ports, but now this agreement extends this to regional level. 

The agreements took place on 25 June at the Regional Council headquarters in Marseille

By integrating the emissions rating tool into its action plan, the Région Sud aims to accelerate the adoption of environmentally friendly boating practices and reinforce its commitment to protecting the Mediterranean’s unique marine environment. 

Renaud Muselier, president of the Provence-Alpes-Côte d’Azur Region and deputy president of Régions de France, explained: "The Mediterranean hosts nearly 50 per cent of the world’s yacht fleet each year, which makes our commitment to sustainability all the more crucial. The SEA Index is at the forefront of this mission. By promoting its certification process, we are not only advocating for cleaner seas, but also actively contributing to the energy transition of the yachting sector. Together, we are shaping a more responsible and sustainable future for yachting."

Bernard d’Alessandri, president of the SEA Index Superyacht Eco Association, added:"We are delighted that the Région Sud has chosen to adopt the SEA Index for a Sustainable Mediterranean. This reflects the trust the Index has earned as a verifiable sustainability tool in the yachting sector. Together, we will build a more sustainable future for the Mediterranean and its people."