NR670 Methanol and Ethanol-Fuelled Ships

This Rule Note provides requirements for the arrangement, installation, control and monitoring of machinery, equipment and systems using methyl/ethyl alcohol as fuel to minimize the risk to the ship, its crew and the environment, having regard to the nature of the fuels involved.

ReferenceTitleEdition
NR670 R04Methanol and Ethanol-Fuelled ShipsJanuary 2026


Check the main changes

Check other Bureau Veritas rules and guidelines, including:

  • NR467 Rules for the classification of steel ships
  • NR529 Gas fuelled ships
  • NR671 Ammonia-fuelled ships - tentative rules
  • NR678 Hydrogen-fuelled ships
  • NR647 LPG-fuelled ships
  • NR547 Ships using fuel cells

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