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Under the latest more stringent requirements about the control of NOx, SOx, CO2 and particulate matter emissions from ships’ exhaust gas, the use of LNG as fuel for propulsion and auxiliary systems on board, instead of the conventional fuel oil, is one of the solutions to be taken in due consideration.


From the point of view of the environmental impact on the air quality and global warming and regulatory compliance, the use of LNG:
  • eliminates the SOx emissio​ns
  • reduces the NOx emissions by almost 90%
  • reduces CO2 emissions significantly (by some 20% to 25%).
From the fuel cost impact, the use of LNG reduces the costs for ship’s fuel, in respect of Low Sulphur MGO.
Being an international regulatory framework not yet in place, a comprehensive set of technical rules from RINA SERVICES is a good starting point for designers, owners and flag Administrations.


  • one of the leader company in the LNG technology having followed the design of big regasification units, approved, surveyed during construction and classified the first off-shore FSRU
  • actually involved in the classification of LNG fuelled ships 
  • following the development of the IMO IGF and IGC international rules
  • coordinator and partner in the development of various international research studies on the use of LNG as marine fuel
  • ​​acting as R/O in the process of acceptance of this not yet regulated fuel with flag Administrations.


The additional Class Notation is assigned upon participation in the development of the project, analysis of the layout and validation of the solutions adopted, approval of the equipment, systems, arrangement and procedures.

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