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Operational standards for LNG as ship fuel

The working group “LNG-fuelled vessels” of the World Ports Climate Initiative (WPCI) is increasing the harmonization of procedures by introducing and promoting harmonized LNG bunker checklists for bunkering options and guidelines for the accreditation of bunker companies.


The general principles that serve as a basis for the information, guidelines and recommendations are contained in:

  • the Society of International Gas Tanker & Terminal Operators (SIGTTO) standard for transfer of LNG (as cargo), and

  • the Oil Companies International Marine Forum (OCIMF) guidelines for oil transfer, ship-to-ship oil bunker procedures.

They are also used in the bunker checklists mentioned above.


Technical standards for LNG as fuel

Standardisation of technical requirements for LNG-fuelled ships is still under development. However, the standardisation process can benefit from the results of an earlier standardisation process, specifically:

  • the IMO standard for ships carrying LNG as cargo ( IGC code)


The following initiatives that are now under development will further enhance this standardization process: 

  • the International Code of Safety for Ships using Gases or other Low Flashpoint Fuels ( IGF code), and
  • the ISO working group on guidelines for bunkering facilities and operations.

It is expected that both initiatives will be completed in 2016.


Further initiatives that promote ship safety and best industry practices in the use of LNG as a marine fuel are under development by the Society for Gas as a Marine Fuel.

Further reading

Bunkering checklist

IAPH’s WPCI LNG working group has developed harmonized bunkering checklists for LNG operations in ports. Implemented harmonized bunker checklists will be of great benefit to the vessels bunkering LNG in different ports, as this will reduce the potential for confusion caused by having to comply with different rules and regulations in different ports.