Requires operators of ocean cargo voyages that touch U.S. ports to report detailed voyage and fuel data and to pay a per‑voyage fee tied to lifecycle greenhouse gas and air pollutant emissions starting January 1, 2027. Fee revenue funds grants, rebates, and low‑interest loans beginning in fiscal year 2029 to support cleaner ships, port electrification, air monitoring, fuel development, and workforce training, with penalties for noncompliance and recognition of comparable foreign fees.