OPX (2026) €225.00 $263,49 +15% to prev. month
EUA €68.86 $80.22 -0.86% to prev. day
cap and trade systemEmissionseu emissionseu emissions trading systemEU ETSEUAsinnovation fundtrading period
3 min read

Setting up accounts for EUAs

Shipping companies operating under the EU ETS will be required to open a Maritime Operator Holding Account (MOHA) for the transfer and surrender of EUAs to the relevant Administering Authority (AA).    Determining Your Administering Authority (AA)   Each shipping company, whether the shipowner or technical manager, will have EU ETS obligations to the AA […]

OceanScore
EU ETS compliance: Setting up a Maritime Operator Holding Account (MOHA) and Union Registry trading account for shipping companies.

Table of Contents

  1. Determining Your Administering Authority (AA)
  2. Key Deadline: MOHA Application Timing
  3. Setting Up a Union Registry Trading Account
  4. Challenges for SPV-Owned Fleets
  5. Conclusion: Act Now to Ensure EU ETS Compliance

Shipping companies operating under the EU ETS will be required to open a Maritime Operator Holding Account (MOHA) for the transfer and surrender of EUAs to the relevant Administering Authority (AA). 

 

Determining Your Administering Authority (AA)

 

Each shipping company, whether the shipowner or technical manager, will have EU ETS obligations to the AA of an EU or EEA member state. Companies registered in an EU/EEA country will be assigned to the AA of that country. Companies registered outside the EU/EEA will be assigned to the AA of the country where their ships have called most frequently over the past four years or, if this is not applicable, where their first port call has been in 2024. 

 

Key Deadline: MOHA Application Timing

 

The EU was due to publish on 1 February 2024 a list of AAs with shipping companies under their jurisdiction, and each company responsible for one or more ships under the EU ETS is required to apply for a MOHA within 40 working days of publication of this list. Any company that is not listed must itself take the necessary steps to find its AA and apply for a MOHA within this timeframe. 

 

Setting Up a Union Registry Trading Account

 

In addition, shipping companies must set up a Union Registry trading account to maintain an electronic record of their issued EUAs, ensuring transparency and accountability. Companies will have to be registered in the EU ETS to be able to receive, buy and manage EUAs, and to later surrender them to the respective AA. 

Many, especially those outside Europe, are still struggling with setting up their Union Registry accounts, but they need to act swiftly as opening such a trading account is crucial, especially for receiving EUAs from charterers. 

 

Challenges for SPV-Owned Fleets

 

This can be further complicated by the fact that many vessels are owned under Special Purpose Vehicles (SPVs) as one-ship companies held within owner groups. The requirement for owners to be legally responsible means that an account must be opened for each SPV, which can lead to tens or hundreds of accounts, possibly across different AAs, resulting in serious administrative challenges in managing all of these accounts. 

 

Conclusion: Act Now to Ensure EU ETS Compliance

 

While we believe that at least one trading account should be opened as soon as possible, managers handling vessels for multiple owners might find it beneficial to open one trading account per owner, at least for the more significant owners. This will allow them to share account statements or even provide read-only access, adding a layer of structural transparency to the proceedings.   

Related posts

FuelEUFuelEU Pooling
3 min read

FuelEU Pooling in 2026: From Commercial Agreement to Verified Compliance Process

FuelEU pooling in 2026 is no longer just a commercial agreement. Surplus transfers must be formally reported, approved by all…

Damla Hasenclever
6 min read

EU Ports Strategy 2026: What It Means for Port Emissions, Digitalisation and Decarbonisation

The EU Ports Strategy 2026 sets clear priorities for emissions reduction, digitalisation and resilience. As ports move from ambition to…

Damla Hasenclever
EU ETSFuelEUInvoicing
3 min read

EU ETS and FuelEU Compliance: The Hidden Risk of Manual Invoicing

Manual invoicing under EU ETS and FuelEU Maritime can quietly block cost recovery. See how one Greek owner-manager safeguarded €2–3…

OceanScore
FuelEU pooling marketplace
5 min read

Maritime Compliance Trading: Turning Emissions Rules into Carbon Opportunities and Marketplaces

The Regulatory Landscape: Fast, Complex, and Overlapping   Regulation in maritime decarbonisation continues at unrelenting speed, and with it, the…

OceanScore
A large cargo ship loaded with colorful shipping containers is guided by tugboats through a busy port with cranes and other vessels docked along the waterfront.
ESI
3 min read

Environmental Ship Index: Reduce Port Fees Through Environmental Performance

Many ships already qualify for port fee discounts through the Environmental Ship Index (ESI). Learn how the scheme works and…

Damla Hasenclever
Close-up of a gloved hand using a measuring dipstick to check fuel level in a red container, illustrating fuel selection and bunker management.
biofuelsFuelEUfueleu maritime regulationmaritime datashipping companies
5 min read

Decoding alternative fuels: OceanScore supports tricky bunker selection process under FuelEU Maritime

OceanScore’s FuelEU Planner helps shipping companies navigate fuel selection, compliance costs, and market dynamics to meet FuelEU Maritime regulations with…

OceanScore
FuelEU Pooling
3 min read

FuelEU Pooling Deadline April 2026: What It Means for Shipping Companies

FuelEU pooling decisions must be finalised by April 30, 2026. This article explains what this means for shipping companies and…

Damla Hasenclever
FuelEUFuelEU PoolingOPX
1 min read

OceanScore Pool-Price Index Market Commentary: May 2026

OPX rises to €225 per tCO₂e as market resets for 2026 compliance cycle.

Albrecht Grell
port emissions monitoringportview
7 min read

Port Emissions Monitoring: How Ports Measure, Understand and Reduce Vessel Emissions

This guide explains port emissions monitoring, how vessel emissions in ports are measured, and how ports can use emissions data…

Damla Hasenclever
compliance manager
3 min read

Forecasting for Maritime Compliance: A Closer Look Inside OceanScore’s Compliance Manager

A Forecasting Module That Earns Global Praise OceanScore’s Compliance Manager entails a forecasting module for maritime compliance that is receiving…

OceanScore
Turn obligation into opportunity

Turn obligation into opportunity

Explore our maritime emissions compliance solutions designed to meet evolving regulations like EU ETS and FuelEU Maritime.

our clients and partners