DNV: Clarifications on the IMO DCS/CII and EU MRV/ETS, use of bio bunker fuel
DNV releases a statutory news summarising some important clarifications on the EU MRV, IMO DCS and EU ETS including on cargo and bunker sampling as well as biofuels.
Classification society DNV on Thursday (21 November) released a statutory news summarising some important clarifications on the EU MRV, IMO DCS and EU ETS. The following are excerpts from the article:
The 2023 EU MRV and IMO DCS reporting period will soon come to an end, whilst the EU ETS regulations are coming into effect from the start of the new year. As we approach year-end, this news summarizes some important clarifications on the EU MRV, IMO DCS and EU ETS.
Below is a summary of updates and clarifications on:
IMO DCS/CII
EU MRV:
ISM company mandate for ETS
Partial emissions report
Cargo and bunker sampling
Leisure stops (relevant for cruise ships only)
Dry-docking and emissions
Biofuels
IMO DCS/CII
The Carbon Intensity Indicator (CII) is a measure of how efficiently a ship can transport goods or passengers and is given in grams of CO2 emitted per cargo-carrying capacity and nautical mile, based on reported IMO DCS data. The ship is then given an annual rating ranging from A to E, where the rating thresholds will become increasingly stringent towards 2030. For ships that achieve a D rating for three consecutive years or an E rating in a single year, a Corrective Action Plan (CAP) needs to be developed (and approved) as part of the Ship Energy Efficiency Management Plan (SEEMP) Part III, before the DCS Statement of Compliance can be issued. This functionality will be available in DNV’s SEEMP Part III tool from 1 January 2024:
Upon receiving the uploaded DCS data in early 2024, DNV will inform its customers via email for ships having a CII E rating (where urgent action is needed). Furthermore, our customers will receive a notification of the ship rating during the submission process.
Required and attained CII calculation after change of DWT/GT during 2023
As outlined in MEPC.348(78), permanent alterations to a vessel’s deadweight (DWT) and/or gross tonnage (GT) can be implemented as a measure within SEEMP Part III or as a CAP to enhance the ship’s operational carbon intensity performance. For vessels that underwent changes in DWT and/or GT after 1 January 2023, a new methodology for calculating attained and required CII will apply:
a. For changes listed in the SEEMP Part III or the CAP:
The required CII is calculated based on the original DWT/GT*. For the year of the conversion, the attained CII is calculated and verified based on the average DWT or GT value weighted on distance travelled before and after conversion. For subsequent years, the attained CII is based on the new DWT/GT.
b. For changes not listed in the SEEMP Part III or the CAP:
For the year of the conversion, the required CII and attained CII are calculated and verified based on the average DWT or GT value weighted on distance travelled before and after conversion. For subsequent years, the required CII and attained CII are based on the new DWT/GT.
EU MRV/ETS
Firstly, a brief recap of the revised EU MRV regulations:
ISM company mandate for ETS
As announced in our news from 17 November (see “References” below), the EC has adopted an implementing regulation detailing which company is responsible for monitoring and reporting GHG emissions and surrendering emission allowances. The default responsible entity is the registered owner. The responsibility can be shifted to the ship manager – i.e. the ISM company – only if an agreement between the registered owner and the ISM company explicitly states this shift in responsibility.
In the event that the shipowner delegates the EU ETS obligation to a shipping company, the shipping company shall provide its administering authority with a document clearly indicating that it has been duly mandated by the shipowner to comply with the ETS obligations. DNV has prepared a template for such an agreement, available free of charge for our customers in Fleet Status on Veracity:
In addition to the above, in the updated MRV MP online form our customers will find the same document template and can populate it with relevant data. The functionality is available under the “Important information for ISM companies” button found on the “Administrative data” tab.
The mandate document shall be duly filled out and signed by both the shipowner and the shipping company. It should be provided upon MRV MP submission in THETIS MRV portal to your MRV verifier and made available to the administering authority.
Partial emissions report
The issuance of the partial emissions report was also mentioned on our news from 17 November, but a few clarifications need to be added: from 5 June 2023, the revised MRV regulation requires that upon change of company, a partial MRV emissions report (ER) is to be submitted for verification. The verified partial MRV ER should be submitted to the administering authority, flag state authorities of the Member State, the European Commission and to the new company as close as practical to the day of change of company and no later than three months thereafter. The verified data covering the previous company’s responsibility period should form a part of the MRV ER that will be submitted by the company responsible at the end of the reporting year.
However, the previous company’s emissions for a vessel which has been taken over by a company will not be a part of the aggregated emissions data at the company level for the new company. Therefore, the company taking over the ship will not be liable to surrender allowances for the period when the vessel was under the previous management or ownership. Nevertheless, the current owner/manager still needs to request the verified aggregated MRV data for the previous company’s period to fulfil MRV obligations at the end of the year. This data, combined with the log abstract data, will form a full-year MRV ER.
Taking into consideration that changes have only been recently implemented in THETIS-MRV and an administering authority must be first assigned to the companies to fulfil the obligations of the MRV Regulation Article 11.2, DNV will support verification of partial MRV ER from January 2024. Submission and verification of 2023 partial MRV ERs will also be enabled.
Cargo and bunker sampling
For some time, with the public attention on verified emissions data rising and the EU ETS soon effective, regulators and accreditation bodies have been increasing the stringency of formal verification requirements. This means that DNV is now required to review documents on reported bunkering and cargo data, including evidence for reported bunkering and reported MRV-relevant cargo figures per emissions report. This ensures the MRV ERs will have the required quality considering the increasing relevance of verified emissions data. Additional information is available in Fleet Status on Veracity:
Biofuels
The different regulations have different approaches on how to deal with biofuels, summarized in the following:
When aggregated and put side-by-side, total carbon emission from the use of biofuel will vary substantially between the three schemes. EU MRV emissions data is the basis for determination of total emission of GHG to be reported under the EU ETS Directive. However, by applying a CO2 factor of zero for biofuel fraction of fuel used, the ETS-relevant emission is reduced. For CII, a completely different set of rules is applied, focusing on the life cycle’s emissions of fuel. Different criteria for the application of the methodology as described above should be noted and consulted with the fuel supplier before the fuel purchase, with the aim to claim benefits from the use of biofuel in GHG reporting.
Further information on how to report the use of biofuels is available on the OVD resources page. If guidance is needed on how to update the SEEMP Part II and the MRV Monitoring Plan in relation to the use of biofuel, we invite you to contact our DATE experts.
Hong Kong: CPN hits new record for China’s largest B24 biofuel bunkering operation
Chimbusco Pan Nation delivered 6,300 mt of B24-VLSFO in Hong Kong to boxship “XIN LOS ANGELES” on 15 May, exceeding its previous record of 5,500 mt delivered in February 2025.
Hong Kong-based bunker supplier Chimbusco Pan Nation Petro-Chemical (CPN) on Friday (16 May) said it has set a record for China’s largest B24 marine biofuel bunkering operation.
CPN said it delivered 6,300 metric tonnes (mt) of B24-VLSFO in Hong Kong to container ship XIN LOS ANGELES on 15 May.
“This collaboration reinforces CPN’s ability to execute large-scale marine biofuel bunkering with precision and reliability,” the company said in a social media post.
“By consistently supplying large volumes of B24 marine biofuel, CPN supports reduced carbon emissions and sustainable shipping practices globally.”
St1 delivers first locally produced biomethane to Swedish maritime sector for bunkering
St1 and its venture St1 Biokraft delivered their own Swedish-produced liquefied biomethane to Terntank’s vessel “Tern Ocean” in a bunkering operation at Port of Gothenburg.
Finnish energy company St1 and its venture St1 Biokraft delivered their own Swedish-produced liquefied biomethane, also known as bio-LNG, to the local maritime sector for the first time, according to Port of Gothenburg on Thursday (15 May).
Terntank’s vessel Tern Ocean was bunkered with the biomethane at the Port of Gothenburg.
St1 and St1 Biokraft are now aiming to become large-scale suppliers of biomethane for shipping, while the Port of Gothenburg continues to pursue its goal of becoming Scandinavia’s primary bunkering hub for alternative fuels.
The bunkering operation recently carried out at quay 519 in the Port of Gothenburg was an important pilot test for St1 and St1 Biokraft as suppliers of biomethane to the maritime sector. The operation also served as a pressure test of the collaboration required across all parts of the value chain, with Terntank, gas infrastructure owner Nordion Energi, and the producers themselves all playing crucial roles.
“In order to accelerate the maritime sector’s transition, it is essential that all actors across the value chain pull in the same direction, cooperate, and translate ambitions into practice. We are pleased to have all of this in place at the Port of Gothenburg,” said Therese Jällbrink, Head of Renewable Energy at the Port of Gothenburg.
“Liquefied biomethane is an important part of the fuel palette that must be available to support the shipping industry’s transition. It is one of the fuels the Port of Gothenburg is working with within the framework of green shipping corridors, aimed at creating the conditions for fossil-free logistics chains. This bunkering operation brings us another step closer to our ambition of becoming Scandinavia’s primary bunkering hub for alternative fuels.”
St1 and St1 Biokraft have ambitions to become large-scale suppliers of liquefied biomethane for the maritime sector, with several new production facilities planned across Sweden.
In 2026, energy infrastructure company Nordion Energi will build a liquefaction facility for biomethane at the Port of Gothenburg, which will be connected to the West Sweden gas grid. With the facility in place, a new opportunity will be created for biomethane producers connected to the gas network to reach the maritime market.
“Once the liquefaction plant is completed, we will have a solid solution in place at the Port of Gothenburg. This is a strategic step towards our goal of scaling up and offering competitive liquefied biomethane to the shipping sector, thereby taking a leading position in this segment,” said Ted Gustavsson, Head of Value Chain at St1 Biokraft.
Photo credit: Port of Gothenburg Published: 16 May, 2025
European marine fuel supplier Burando Energies on Wednesday (14 May) said it has successfully completed a bunkering operation for Teekay Tankers, delivering a bespoke blend of Very Low Sulphur Fuel Oil (VLSFO) containing 30% ISCC Certified FAME Residue in the Port of Amsterdam.
By blending its VLSFO with FAME Residue, Burando Energies said it is able to provide a scalable solution that meets both commercial and environmental targets.
“We are proud to support Teekay Tankers in taking concrete steps toward sustainable operations,” said Nick de Haan, Head of Decarbonisation Strategies at Burando Energies.
“This delivery showcases our ability to meet the evolving fuel demands of the global shipping industry with innovative, lower-carbon solutions that are also commercially viable.”
FAME (Fatty Acid Methyl Esters) Residue is a renewable, second-generation bio-component derived from waste oils and residual feedstocks from biodiesel production. Unlike conventional biodiesel, FAME Residue is considered a more economical and circular option, offering a reduced carbon footprint at a lower cost.
Through extensive testing and evaluation, Burando Energies has secured a consistent, FAME Residue stream that blends well with VLSFO and maintains full compatibility with existing marine engines. The result is a drop-in fuel blend that lowers lifecycle emissions while enhancing both operational efficiency and fuel flexibility.
“Teekay Tankers has partnered with Burando for many years and has worked with us on the first FAME Residue biofuel delivery in Amsterdam,” said Mads Bjornebye, Manager Bunker Services at Teekay Tankers.
“Burando coordinated closely with both our Technical and Commercial teams to ensure a smooth delivery.”
Photo credit: Burando Energies Published: 15 May, 2025