UK Government Releases Interim Response On Maritime Inclusion In UK Emissions Scheme

The UK government has published its interim response regarding the expansion of the UK Emissions Trading Scheme (UK ETS) to include the maritime sector. This early update is designed to help maritime operators and regulators begin preparations ahead of the scheme’s launch, scheduled for 1 July 2026.

While further details will follow in a full response, this interim publication outlines the scope, compliance framework, and emissions monitoring requirements that will govern shipping-related emissions under the UK ETS.

Timeline, Scope, and Reporting Obligations

The UK ETS maritime regime is set to commence on 1 July 2026, with the first reporting period running until 31 December 2026. All subsequent reporting years will follow the calendar year cycle.

• Surrender deadlines for allowances will fall on 30 April of the year following each reporting period (e.g., 30 April 2027 for 2026 emissions).

• The scheme will apply to ships of 5000 gross tonnage (GT) and above, aligning with international regulatory trends.

• The scope includes domestic UK voyages (between UK ports or within a single port), covering all emissions during the voyage, including while at anchor or moored.

• In-port emissions will also be included, regardless of whether the voyage is domestic or international.

Compliance Responsibility and Emissions Covered

Under the regime, compliance responsibility will lie with the Registered Owner, or with the ISM Company if responsibility has been formally transferred through a legally binding agreement.

• Government and non-commercial maritime activities are explicitly exempt from the regime.

• The covered greenhouse gases will include carbon dioxide (CO₂), methane (CH₄), and nitrous oxide (N₂O) — broadening the scope beyond CO₂ alone.
  This reinforces the UK government’s intent to address short-lived climate pollutants and strengthen maritime decarbonisation efforts.

Monitoring and Regulatory Oversight

A key operational aspect will be the requirement for Emissions Monitoring Plans (EMPs). These plans:

• Must be developed per operator, not per vessel.

• Must receive regulator approval, rather than verification solely by third parties.

This centralized oversight model emphasizes government control and standardization in emissions data quality. The UK ETS Authority is expected to release a full and detailed response soon, which should provide clarity on unresolved matters such as international voyage emissions and treatment of offshore vessels.

The UK’s interim response marks a major milestone in expanding its climate policy to the maritime sector, providing operators with a foundational understanding of compliance obligations and timelines. While full details are pending, the outlined framework underscores the UK’s commitment to maritime decarbonisation and regulatory alignment. Operators are advised to begin preparations early, including development of compliant EMPs, and to monitor updates from the UK ETS Authority closely.

A copy of the interim response can be accessed here