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IBIA: Boost for biofuels as IMO removes regulatory hurdle

New Unified Interpretation means that biofuel blends up to 30% (B30) will be regarded in the same way as regular oil-based fuels, said IBIA.

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The International Bunker Industry Association (IBIA) on Monday (20 June) published an article to elaborate on the new “Unified Interpretation (UI)” approved by the IMO’s Marine Environment Protection Committee in June 2022 on the application of regulation 18.3 MARPOL Annex VI in relation to biofuels.

Interest in biofuels is growing due to its environmental benefits and potential GHG savings, but there have been doubts about a potential increase in NOx emissions and compliance with MARPOL Annex VI and the NOx Technical Code.

Regulation 18 of MARPOL Annex VI, “Fuel Oil Availability and Qualities”, applies to fuels derived from petroleum refining and also fuels derived by methods other than petroleum refining.

Biofuels and biofuel blends have to comply with MARPOL Annex VI.

Apart from limits on sulphur content, Regulation 18.3.2.2 of MARPOL Annex VI requires that such fuels shall not “… cause an engine to exceed the applicable NOx emission limit…”.

Meeting applicable sulphur limits is normally not a challenge for biofuels; however the nature of the NOx Technical Code has been problematic as engine certification and the associated IAPP-certificate requires that the parent engine test is undertaken on a DM-grade (distillate) marine fuel in accordance with ISO 8217:2005.

To demonstrate that biofuels do not “cause an engine to exceed the applicable NOx emission limit” has been a challenge. It would require either on-board emission testing and monitoring, or engine and fuel-specific NOx emissions validation testing, with the added complexity of not being able to define a reference biofuel. Alternatively, ships have been able to apply for an exemption from Regulation 18 of MARPOL Annex VI in line with MARPOL Annex VI Regulation 3: “Trials for Ship Emission Reduction and Control Technology Research”.  Exemptions for the testing of the biofuels can be granted up to 18 months for smaller engines, and up to five years for larger engines with cylinder displacements over 30 litres, subject to the flag Administrations decision.

This regulatory hurdle is now set to be cleared thanks to a new “Unified Interpretation (UI)” approved by the IMO’s Marine Environment Committee in June 2022 on the application of regulation 18.3 MARPOL Annex VI in relation to biofuels.

This UI means that biofuel blends up to 30% (B30) will be regarded in the same way as regular oil-based fuels.

It also allows the use of B30 to B100 biofuels for “engines certified in accordance with regulation 13 of MARPOL Annex VI which can operate on a biofuel or a biofuel blend without changes to its NOx critical components or settings/operating values outside those as given by that engine’s approved Technical File.”

Experience to date is that no engine setting changes have been needed to operate on up to B100 biofuels, according to information from Lloyd’s Register.

A recently published Lloyd’s Register Technical Report on NOx from marine diesel engines using biofuels covered data from multiple biofuel sea trials with FAME or FAME-type fuels from 20% through to 100% bio-component. The report concluded that that NOx emissions were not significantly increased in any instance.   

Moreover, NOx emission data from several in-use trials submitted to the IMO have shown that NOx emissions of various biofuel blends, up to and including 100% bio-components, are often less than NOx emissions from oil-based fuels, or comparable.  

The UI will be issued as MEPC.1/Circ.795/Rev.6, replacing MEPC.1/Circ.795/Rev.6 but is essentially already in effect. There may be a delay in taking this new UI into account in some countries, so owners planning to use biofuels should contact their flag Administration about their formal position in applying this UI.

The UI will come as a relief to owners who want to use biofuels without having to undertake onboard NOx measurements, which has – from all accounts – been a complex and onerous exercise representing a substantial extra workload compared to normal service.

Related: IBIA explainer: IMO’s new flashpoint documentation requirement
Related: IBIA comments on IMO’s GHG strategy to MEPC 78
Related: IMO Update by DNV: Marine Environment Protection Committee – MEPC 78

 

Photo credit: IBIA
Published: 23 June, 2022

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Alternative Fuels

Yang Ming orders six LNG dual-fuel, ammonia-ready containerships from Hanwha Ocean

Each of the six new vessels will have a capacity of up to 13,650 TEU and feature LNG dual-fuel propulsion and Ammonia Fuel Ready specifications.

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Yang Ming orders six LNG dual-fuel, ammonia-ready containerships from Hanwha Ocean

Taiwanese shipping firm Yang Ming Marine Transport Corporation (Yang Ming) and South Korean shipbuilder Hanwha Ocean on Wednesday (2 September) signed a shipbuilding contract for six 13,000 TEU class LNG dual-fuel container vessels. 

The contract was signed by Dr. Chuck Tsai, Chairman of Yang Ming, and Mr. Charles Kim, CEO of Hanwha Ocean. The vessels are scheduled for delivery between 2028 and 2029. 

They will complement Yang Ming’s existing fleet of 10,000+ TEU vessels and serve as key vessels on East-West services, with deployment flexibility across trade lanes connecting Asia with the East and West Coasts of North America, South America, and the Mediterranean. 

Each of the six new vessels will have a capacity of up to 13,650 TEU and feature LNG dual-fuel propulsion and Ammonia Fuel Ready specifications.

“As Yang Ming transitions toward net-zero emissions, LNG provides a relatively mature and economically viable alternative fuel solution, capable of reducing greenhouse gas emissions by approximately 20%,” the company said. 

“At the same time, ammonia can serve as a carbon-free fuel by utilising converted LNG storage facilities, while offering relatively lower conversion costs and comparatively well-developed supply chains and infrastructure. The Ammonia Fuel Ready design will therefore provide Yang Ming with greater flexibility in responding to increasingly stringent international regulations on greenhouse gas emissions.”

In addition, the vessels will be equipped with Type B LNG fuel tanks with a design pressure of 1.0 bar to enhance the safety and efficiency of LNG operations, together with a range of energy-saving technologies, including Wind Shields, Rudder Bulbs, Pre-Swirl Stators, and Shore Power Systems. Smart ship technologies and cybersecurity protection features will also be incorporated to enhance operational efficiency, safety, and reliability while effectively reducing fuel consumption and greenhouse gas emissions.

Deliveries under Yang Ming’s next-generation fleet optimization plan commenced earlier this year. By 2030, a total of 24 new vessels are expected to enter service. 

This includes 18 LNG dual-fuel vessels—comprising five 15,500 TEU, seven 16,000 TEU, and the six 13,000 TEU vessels under this contract—alongside six 8,000 TEU methanol dual-fuel-ready ships. 

 

Photo credit: Yang Ming Marine Transport
Published: 4 September, 2026

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LR, China’s MARIC unveil tanker concept ready for three future bunker fuels

Both secured AiP for a new 114,000 DWT product and crude oil tanker designed to accommodate future conversion to LNG, methanol or ammonia.

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LR, China’s MARIC unveil tanker concept ready for three future bunker fuels

Lloyd’s Register (LR) and the Marine Design and Research Institute of China (MARIC) on Thursday (3 September) have secured Approval in Principle (AiP) for a new 114,000 DWT product and crude oil tanker designed to accommodate future conversion to LNG, methanol or ammonia.

Announced at SMM 2026, the concept addresses one of the biggest investment challenges facing shipping today: the need to develop vessels and capabilities that can support a range of alternative fuel options and pathways as technologies, infrastructure and regulations evolve.

While LNG is already a mature fuel pathway, methanol and ammonia remain at an earlier stage of development, with questions around global fuel availability, infrastructure development, economics and long-term adoption.

The 114,000 DWT tanker concept has been designed as a product and crude oil carrier that can accommodate future conversion to LNG, methanol or ammonia as technologies, regulations and fuel supply chains mature. By incorporating conversion readiness at the design stage, the concept aims to reduce future retrofit complexity and provide owners with greater confidence when planning long-term fleet investments.

The design concept was reviewed against LR’s July 2026 class rules and regulations, including requirements relating to ships using gases and other low-flashpoint fuels, alongside relevant IACS Common Structural Rules for oil tankers. Final classification and statutory approval remain subject to full compliance with all applicable rules and regulations.

Theo Kourmpelis, Global Business Director for Tankers, Lloyd’s Register, said: “Shipowners are being asked to make major investment decisions today despite continued uncertainty around which fuels will dominate in the decades ahead. Alternative fuel solutions each offer potential pathways to compliance, but fuel infrastructure, regulation and economics continue to evolve at different speeds around the world.

“Designs that preserve flexibility will be critical in helping owners manage risk while preparing for multiple future scenarios.”

Si Nan, Marine & Offshore Marketing Department Vice Director, MARIC, said: “As the industry explores different decarbonisation pathways, shipowners need vessel designs that can adapt alongside technological and regulatory developments. This concept was developed specifically to provide greater fuel flexibility and long-term resilience, allowing owners to respond to changing market requirements without being locked into a single fuel strategy.

“Receiving Approval in Principle from Lloyd’s Register is an important milestone that validates the design concept and supports its future development.”

 

Photo credit: Lloyd’s Register
Published: 4 September, 2026

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Alternative Fuels

DNV: Alternative-fuelled vessel orders hit highest monthly level since October 2024

LNG-fuelled vessels accounted for the vast majority of August activity while the strong summer performance marked a significant acceleration in ordering activity after a relatively slow start to the year.

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DNV: Alternative-fuelled vessel orders hit highest monthly level since October 2024

Latest data from classification society DNV’s Alternative Fuels Insight (AFI) platform alternative-fuelled vessel ordering was strong in August, with 52 new vessels added to the platform.

This is the highest monthly total since October 2024 and follows another active month in July, when 47 vessels were added to the database.

LNG-fuelled vessels accounted for the vast majority of August activity, with 46 orders recorded. The container segment led the way with 30 orders, while the car carrier segment contributed a further 12 LNG-fuelled vessels. In addition, four ethanol-fuelled bulk carriers and two hydrogen-powered bulk carriers were added during the month, as well as one LNG bunker vessel.

The strong summer performance marked a significant acceleration in ordering activity after a relatively slow start to the year. In total, 242 alternative-fuelled vessel orders have been placed in the first eight months of 2026, representing a 27% increase compared with the same period in 2025.

LNG remains the dominant fuel choice, accounting for 63% of all alternative-fuelled vessel orders registered so far this year. Container vessels represent the largest share of these LNG orders (59%), followed by car carriers (30%).

Jason Stefanatos, Global Decarbonization Director at DNV Maritime, said: “The past two months have been particularly strong for alternative-fuelled vessel ordering, with August recording the highest monthly total we’ve seen since October 2024. This has helped lift year-to-date orders to a level well above the same period last year.

“LNG remains the leading fuel choice, driven largely by activity in the container and car carrier segments. These sectors have been among the earliest adopters of alternative fuels, supported by predictable liner operations and increasing demand from cargo owners to reduce emissions across supply chains. 

“For many owners, LNG offers a combination of emissions reductions, fuel availability and future flexibility while the longer-term fuel landscape continues to evolve. 

“At the same time, the latest figures include orders for ethanol- and hydrogen-fuelled vessels, highlighting that owners continue to explore a range of decarbonization pathways. Different segments are making different fuel choices, but the overall level of activity demonstrates continued investment in lower-emission shipping.”

Screenshot 2026 09 04 at 12.29.26 PM Screenshot 2026 09 04 at 12.29.36 PM

 

Photo credit: DNV
Published: 4 September, 2026

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