Written Question·Department for Energy Security and Net Zero·UIN 121899

UK Emissions Trading Scheme: Shipping

Tabled: 18 March 2026
Answered: 24 March 2026
Named Day

Question

Jerome Mayhew

ConservativeBroadland and Fakenham

To ask the Secretary of State for Energy Security and Net Zero, when Ministers in his Department first assessed the relevance of the EU Carbon Border Adjustment Mechanism to the inclusion of maritime emissions within the UK Emissions Trading Scheme.

Answer

Michael Shanks
Neither the UK Carbon Border Adjustment Mechanism (CBAM) nor its EU equivalent applies to maritime emissions, and this instrument does not introduce any CBAM obligations for maritime operators. The Common Understanding, published in May 2025 sets out the ...

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