IMO Net-Zero: shipping carbon levies, fuel rules, and freight costs

changing-tides-strategic-implications-of-the-new-draft-imo-net-zero-framework-for-the-maritime-sector

In April 2025 the IMO advanced draft rules that pair mandatory GHG fuel-intensity cuts with a two-tier levy (Base vs. Direct Compliance) starting in 2028, tightening from 4%/17% to 30%/43% by 2035 and feeding a new Net-Zero Fund. With only ~3.7% of 5,000-GT-plus ships dual-fuel capable, most of today’s fleet would pay for non-compliance or invest in ZNZ-fuel retrofits/newbuilds—implying higher freight […]

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