UK ETS

The UK Emissions Trading Scheme (UK ETS) is the cap-and-trade carbon market that replaced the EU ETS for the United Kingdom after Brexit, and from 1 July 2026 it extends to the domestic maritime sector. Ships of 5,000 GT and above must monitor, report, and surrender allowances for CO2, methane, and nitrous oxide on voyages between UK ports and at berth, with 100% of emissions covered on domestic legs and 50% on Great Britain to Northern Ireland routes. The first reporting period runs 1 July to 31 December 2026. A proposal to capture a share of international voyages from 2028 would align UK coverage more closely with the EU ETS.