ClassNK releases 1.1 edition of ‘Guidelines for Ships Using Alternative Fuels’

Source: press release, 10 September 2021

illustration: ClassNK
illustration: ClassNK

ClassNK is committed to providing comprehensive services to support the industry’s efforts to transition to zero emissions in shipping.

In support of measures for GHG emissions reduction, ClassNK has released “Guidelines for Ships Using Alternative Fuels”. This edition includes updates with safety requirements for ships using ammonia as fuel in previously issued “Guidelines for Ships Using Low-Flashpoint Fuels” covering LPG/Methanol/Ethanol, and provide comprehensive information on requirements for alternative fuel ships.

Ammonia has captured attention as a zero-carbon fuel. Appropriate safety measures are required for ammonia as it is toxic to humans and corrosive to materials, while specific international standards for the use of ammonia as a marine fuel have not yet been established. ClassNK has described the requirements for installation, controls, and safety devices of an ammonia fueled ship to minimising risks for the ship, crew, and the environment, and added it to the guidelines.

In addition, ClassNK has revised the existing “LNG-Ready” notation to “Alternative Fuel Ready” and outlined the requirements for the new notation indicating that a ship is designed and partially equipped for future use of alternative fuels.

The guidelines are reflecting the current technology trend and will be updated regularly along with developments of new technologies and research.

The guidelines are available to download via ClassNK’s website www.classnk.com.