OPX (2026) €171.00 $197,00 -24.0% 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

Portrait of Ralf Garrn, co managing director of OceanScore wearing glasses displayed alongside an OceanScore blog headline discussing estimated €175 million FuelEU Maritime compliance costs for Greek shipping
FuelEUfueleu maritime regulationmaritime datamaritime operationsmaritime regulation
5 min read

OceanScore calculates €175m potential costs for Greek shipping with FuelEU Maritime

Greek shipping companies may face over €175m in penalties under FuelEU Maritime. OceanScore provides tools to optimize fuel selection, reduce…

OceanScore
View of Big Ben and the Union Jack flag in London used as a blog image discussing the UK Emissions Trading Scheme and its role in maritime decarbonisation
emissions trading scheme ukgreenhouse gas emissions permitJanuary 2021participation in the euuk emissions trading schemeuk ets
9 min read

UK ETS Can Nudge Shipping Towards Decarbonisation, But Won’t Suffice on Its Own

EUAs can be purchased at a fixed price at auctions arranged during the year by the European Energy Exchange. They…

OceanScore
FuelEUFuelEU Pooling
2 min read

FuelEU Maritime Charterer Pooling: Will Your Charterer Pool?

As the first FuelEU Maritime compliance year comes to a close, the reality of pooling is taking shape. Based on…

OceanScore
A large cargo ship loaded with colorful shipping containers is docked at a busy port, with cranes, trucks, and bright blue sky in the background.
Environmental Ship IndexESI
8 min read

Environmental Ship Index (ESI): The Complete Guide for Shipping Companies and Ports

The Environmental Ship Index (ESI) is the world’s leading port incentive scheme, rewarding ships performing beyond emission standards with port…

Damla Hasenclever
emissions trading system euEU ETSeu regulationslngmaritime datamaritime operations
8 min read

Capitalizing on the benefits as EU regulations offer LNG bunkering boost

OceanScore examines the financial benefits of LNG under EU ETS and FuelEU Maritime regulations, focusing on compliance surpluses, pooling opportunities,…

OceanScore
Ribbon-cutting ceremony marking the opening of OceanScore’s Singapore office, with three representatives standing in front of a display welcoming visitors to the new location.
asian shipping emissionsets managerEU ETSfueleu maritime regulationSingapore
5 min read

OceanScore opens new Singapore office for Asia Pacific expansion amid rising demand for compliance solutions

OceanScore opens a new office in Singapore to support rising demand for its digital solutions, helping shipping companies comply with…

OceanScore
BIMCOClausecompliance deficitcompliance managerFuelEUlong termmaritime regulationOfficial Statementpooled compliancereporting periodTime Charter Parties
4 min read

OceanScore reviews BIMCO FuelEU Clause for Time Charter Parties 

EUAs can be purchased at a fixed price at auctions arranged during the year by the European Energy Exchange. They…

OceanScore
Shipping industry professionals discussing EUA procurement strategies and emissions cost management.
carbon dioxide equivalentEmissionsemissions trading system eueu emissionseu emissions trading systemEU ETSEUAsEuropean Union emissions tradingsecondary market
3 min read

EUA Trading Strategy for Shipping: How to Buy EU Allowances Efficiently

EUAs can be purchased at a fixed price at auctions arranged during the year by the European Energy Exchange. They…

OceanScore
ESIPorts
3 min read

How Ports Benefit from the Environmental Ship Index (ESI)

The Environmental Ship Index (ESI) is a global port incentive scheme governed by IAPH, helping ports incentivise ships that perform…

Damla Hasenclever
Newsletter banner for OceanScores April 2026 Pool-Price Index Market Commentary, featuring an aerial view of a large container ship moving through the ocean.
FuelEUFuelEU PoolingOPX
2 min read

OceanScore Pool-Price Index Market Commentary: April 2026

OPX declined further to €196 per tCO₂e in April, reaching a multi-month low. Continued surplus oversupply and the approaching pooling…

Albrecht Grell
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