Question to the Department for Transport:

To ask the Secretary of State for Transport, what steps her Department is taking to ensure that the proposed expansion of the UK Emissions Trading Scheme to international maritime voyages is not in addition to the International Maritime Organisation’s expected rules.

Addressing international emissions from shipping is critical and it is important action is taken globally through the International Maritime Organization (IMO). The Government firmly supported adoption of a global market-based measure, the IMO Net-Zero Framework, last autumn and is disappointed the decision has been postponed. We continue to work with other IMO Member States to secure adoption.

The Government also wants to ensure decarbonisation continues here in the UK and has proposed to expand the UK Emissions Trading Scheme (ETS) to emissions from international voyages from 2028. If the IMO Net-Zero Framework is adopted, the Government will review the scope of the UK ETS to assess the effectiveness and fairness of the system for operators as set out in the consultation on the proposed expansion of UK ETS to emissions from international voyages from 2028 published in November 2025.