The Superyacht Eco Association (SEA Index) and the Port de Marseille Fos have formalised a partnership aimed at reducing yacht emissions.
The Port de Marseille Fos joins a network of 23 ports that have already partnered with the SEA Index.
The partnership aims to provide yacht owners with insights into the carbon footprint of their vessels and highlight and promote the most environmentally responsible yachts.
In addition, the port will encourage the arrival of lower-impact superyachts.
The SEA Index has recently enhanced its CO₂ framework by introducing a new air quality certification, developed in collaboration with AtmoSud.
Concrete tools
This certification assesses emissions of nitrogen oxides (NOx) and fine particulate matter (PM), based on the installed power of main engines and generators.
It complements the existing CO₂ assessment tool which is certified by Lloyd’s Register and enables ports and yacht owners to better understand and reduce the environmental impact of large yachts.
“By joining this international network, we are equipping ourselves with concrete tools to encourage the reception of lower-impact vessels and to affirm our role as a leading Mediterranean port in the ecological transition,” said Christophe Castaner, chairman of the supervisory board, Port de Marseille Fos.
Adopting a multi-criteria measurement tool
Bernard d’Alessandri, president, SEA Index, added: “We are delighted to welcome the Port de Marseille Fos into the SEA Index community.
By adopting a multi-criteria measurement tool — covering both CO₂ and air quality — it positions itself as a true pioneer.
“By joining forces with leading ports such as Marseille, we can collectively drive the adoption of ambitious and meaningful environmental standards.”


