OPX (2026) €172.80 $197,48 +1.05% 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

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
Newsletter banner for OceanScores February 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: February 2026

After compliance balances were closed at year-end, additional 2025 surplus volumes were released to the market in January. This increase…

Albrecht Grell
Ships plying the Red Sea route to Europe are running the gauntlet of Houthi missile attacks in the Bab-el-Mandeb strait. Image: Shutterstock
emissions trading system eueu allowance euaEU ETSeu ets managementRed Sea crises
4 min read

OceanScore analysis shows near-tripling of EU ETS costs due to Red Sea crisis

Houthi missile attacks on Red Sea shipping routes lead to higher emissions and increased costs for shipping companies under the…

OceanScore
Aerial view of a cargo ship’s deck and equipment traveling across the ocean, used as a blog image for FuelEU pooling price scenario analysis
European Union emissions tradingFuelEUmaritime datamaritime operationsmodel pricepenaltiespooling
6 min read

OceanScore models price scenario for FuelEU pooling as alternative to penalties

OceanScore provides insights on compliance surpluses and price clarity for FuelEU Maritime's pooling mechanism, offering shipping companies cost-effective compliance solutions.

OceanScore
Shipping companies face compliance challenges under the EU ETS, requiring carbon credit purchases, data verification, and cost allocation strategies. Learn how to navigate these complexities.
EmissionsEU ETSEUAs
2 min read

Getting up to speed with the EU ETS: a guide to best practice

Implementation of the EU ETS for shipping from 1 January 2024 entails new regulatory complexity and financial risk with significant…

OceanScore
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
3 min read

EU ETS and FuelEU Maritime: Challenges and Opportunities for Asian Shipping

Asian shipowners face unique challenges as EU ETS and FuelEU Maritime take full effect. Fewer European voyages, complex Union Registry…

OceanScore
Shipping companies managing EU ETS carbon credit trading and compliance risks.
emissions trading system eueu allowance euaeu carbonEU ETSeu ets management
7 min read

Trading places: shipping must manage new financial risks with transition to EU ETS, says OceanScore

A collaboration agreement has been signed between a classification society ClassNK and a maritime data and technology firm OceanScore to…

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
FuelEUpooling
3 min read

Pooling Compliance Balances in Time Charters: Key Risks and Negotiation Tips

With verification according to EU ETS completed for most shipping companies, a critical assessment of EUA buying strategies is a…

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