International Maritime Pollution Accountability Act of 2023

The International Maritime Pollution Accountability Act of 2023 requires operators of large cargo vessels (10,000 gross tonnage or more) to report detailed emissions data and pay fees based on their carbon dioxide-equivalent emissions ($150 per metric ton) and criteria air pollutants. Importers of cargo bound for the U.S. must also pay a prorated fee based on their share of emissions from vessels carrying their cargo. The fees fund specific programs to modernize the U.S. shipping fleet with low-carbon or battery-powered vessels, support research into sustainable maritime fuels, and improve air quality in port communities through expanded monitoring. The bill establishes funding streams for decarbonizing ports, harbor craft, ferries, and port equipment, with priority given to projects that maximize emissions reductions and public health benefits in areas with poor air quality. The reporting requirements and fees begin January 1, 2024, with annual inflation adjustments starting in 2025.