Ammonia as Marine Fuel: Is the Crew Ready? | OSSA LNG

An ammonia alarm sounds. The engineers need to understand what the fuel system has done. The bridge needs to know whether propulsion is affected. The crew needs clear instructions.

How well would those people work together on their own ship?

This OSSA LNG episode explores ammonia as marine fuel through the practical questions facing seafarers, engineers and shipowners. Drawing on the My LNG article by Tadeusz Osowski, Chief Engineer, it examines how equipment, training and working arrangements need to come together before operations begin.

IN THIS EPISODE

• Ammonia’s toxicity and what it means for crew preparation.

• Communication between the machinery space and the bridge.

• Emergency drills that reveal problems while there is still time to correct them.

• Whether the people available can carry out the duties assigned to them.

• Coordination between the ship and its bunker supplier.

• The responsibilities of designers, manufacturers, owners and managers.

The episode also considers IMO’s interim ammonia training and safety guidelines, while keeping the focus on what those preparations mean during a working watch.

For maritime professionals, students and anyone following shipping’s fuel transition, this is a practical look at the people and decisions behind bringing a new fuel into service.

Listen for the questions worth asking before the next watch.

READ THE FULL ARTICLE

Ammonia as Marine Fuel: Safety, Crew Readiness and Operational Responsibility

https://mylng.art/insights/ammonia-marine-fuel-safety-crew-readiness

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SOURCES AND FURTHER READING

1. International Maritime Organization — STCW.7/Circ.27, issued 6 July 2026.

Interim Guidelines on Training for Seafarers on Ships Using Ammonia as Fuel.

https://futurefuels.imo.org/wp-content/uploads/2026/09/STCW.7-Circ.27-Interim-Guidelines-On-Training-For-SeafarersOn-Ships-Using-Ammonia-As-Fuel-Secretariat.pdf

2. International Maritime Organization — MSC.1/Circ.1687, issued 26 February 2025.

Interim Guidelines for the Safety of Ships Using Ammonia as Fuel. IMO circular hosted by BIMCO. Its stated scope excludes ships covered by the IGC Code.

https://www.bimco.org/media/bxvcygg1/msc1-circ1687-interim-guidelines-for-the-safety-of-ships-using-ammonia-as-fuel-secretariat.pdf

3. CDC/NIOSH — Pocket Guide to Chemical Hazards: Ammonia.

Reference information on exposure hazards, health effects and physical properties.

https://www.cdc.gov/niosh/npg/npgd0028.html

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Educational discussion. Follow the vessel’s approved procedures, applicable requirements and authorised training for operational decisions.

SHORT DESCRIPTION / SEO META DESCRIPTION

Ammonia as marine fuel: explore crew readiness, emergency drills, toxic exposure and the shipowner’s responsibility to prepare people for safe operations.

KEYWORDS / TAGS

ammonia as marine fuel, ammonia fuel safety, ammonia-powered ships, crew readiness, maritime safety, seafarer training, marine engineering, emergency preparedness, ammonia bunkering, shipboard emergency response, human factors in shipping, shipowner responsibility, IMO ammonia guidelines, alternative marine fuels, OSSA LNG, My LNG

#AmmoniaFuel #MaritimeSafety #MarineEngineering #Seafarers #OSSALNG