In the UK, allowances are now due on emissions from vessels of 5,000 GT and above calling any UK port

Maritime carbon pricing is becoming increasingly fragmented as individual countries introduce their own emissions trading systems ahead of a global framework. This trend is adding a new layer of cost exposure and compliance requirements for shipowners operating across multiple jurisdictions.

In the UK, the Emissions Trading Scheme was extended on July 1, 2026, to include cargo and passenger vessels of 5,000 gross tons and above calling at UK ports. Vessels trading to major ports are now subject to carbon allowance requirements for in-port emissions, while UK domestic voyages face full coverage. Operators trading between the UK and EU/EEA may therefore face exposure to both the UK and EU carbon markets, each with separate pricing mechanisms and compliance timelines, though the same emissions are not charged under both systems.

EMF expects the number of national and regional carbon pricing initiatives affecting shipping to continue increasing through 2026 and 2027. While this creates additional administrative complexity for owners, it also reinforces the long-term value of fuel-efficient vessels and investments supporting the maritime energy transition.

Source: DNV & Lloyd’s Register