In Ancona, the "Ancona blue agreement", the voluntary agreement that aims to reduce the impact of emissions from cruise ships, ro-ro and of ferries that call at the Doric port and establishes voluntarily bring forward by six months, in the port area of Ancona, the obligation for these ships to use fuel for use in with a sulphur content not exceeding 0.1%, compared to to the current 0.5%, as provided for by the international convention Marpol 73/78 throughout the Mediterranean Sea from May 1, 2025. The agreement is however open to the signing of any other cargo ship that calls at the port of Ancona.

The agreement was signed by the Supervisory Authority Port System of the Central Adriatic Sea, by the Harbour Master's Office of Port of Ancona, the Municipality of Ancona, the Adria Ferries, Grimaldi Euromed, Jadrolinija Rijeka, MSC Cruise Management UK, Snav, Superfast Ferries and agencies Morandi, Amatori, Archibugi, Morbidelli and Frittelli Maritime Group.