Clean Shipping Act of 2025

Reduction in Greenhouse Gas Emissions: The bill establishes specific standards to lower the carbon intensity of fuel used for vessel propulsion and onboard equipment (Section 2, subsection b, paragraph 1). This includes a goal of 100 percent reduction relative to the 2027 baseline by the year 2050.

Improvement in Air Quality and Public Health: When determining if standards are technologically or economically feasible, the Administrator must consider the potential adverse impacts on public health, safety, and the environment, specifically regarding air quality (Section 2, subsection b, paragraph 3; Section 2, subsection e, paragraph 3).

Elimination of In-Port Pollutants: The bill requires standards to eliminate emissions of greenhouse gases and certain air pollutants from vessels at anchorage or at berth in the contiguous zone of the United States by 2035 (Section 2, subsection e, paragraph 1).

Increased Transparency: The Administrator is required to publish a publicly accessible report on the EPA website that compiles emissions data and includes explanations to help the public understand carbon dioxide-equivalent emissions and fuel carbon intensity (Section 2, subsection c, paragraph 3).

Economic and Technological Burdens on Vessel Operators: The bill requires vessels to meet increasingly strict carbon intensity standards, which may pose challenges if the required reductions are not technologically or economically feasible (Section 2, subsection b, paragraph 1 and 3).

Compliance and Reporting Burdens: Vessel owners or operators are required to perform annual reporting of fuel use, carbon intensity for each covered voyage, and total greenhouse gas emissions (Section 2, subsection c, paragraph 2).