By 2025, large vessels of 5,000 GT and above will face heightened operational costs in EU ports due to new regulations, including the expansion of the Emission Trading System (ETS) and the FuelEU Maritime regulation. Shipping companies will need to acquire carbon credits for their emissions, with escalating requirements over the coming years. The FuelEU regulation mandates lower carbon intensity in fuels used by ships, significantly impacting freight rates. The combined regulations are expected to influence a large number of vessels, as many currently engage in trade with EU ports.