The Clean Shipping Act of 2025 aims to reduce greenhouse gas emissions from vessels by establishing standards for the carbon intensity of fuel used by certain ships. The main goal is to combat climate change by promoting cleaner fuel usage in the maritime industry. Key provisions of the Act include specific carbon intensity reduction targets for vessels on commercial voyages. Starting in 2030, vessels must reduce their carbon intensity by at least 30% compared to a baseline established in 2027. This requirement becomes increasingly stringent over the years, reaching a 100% reduction by 2050.