Classification society DNV GL has introduced a new class notation for gas bunker vessels to enable safe fuel transfer operations from one ship to another.
The latest notation focuses on safety concerns and also covers gas bunker vessels design and additional requirements to support the development of gas fuelled shipping and bunker operations in ports.
DNV GL principal engineer Yury Ilchenko said: "Complying with DNV GL’s new class notation increases the acceptance of safe gas fuel bunkering operations by ports and local authorities and puts bunker ship owners in a stronger position in the market."
The ship-to-ship bunkering transfer operation is an efficient solution in ports with limited infrastructure and demands for short turn-over times, DNV GL stated.
The new class notation provides requirements for liquefied gas carriers and barges that are capable of carrying liquefied gas and supplying it to gas fuelled ships on a regular basis.
Ilchenko added: "The class notation covers safety issues on the gas bunker vessel, its gas bunker related equipment and installations on board.
"It outlines requirements for design, construction and operational procedures with regard to connection and disconnection of transfer arrangements, bunker transfer and vapour return."
Meanwhile, DNV GL has also developed a gas ready notation to prepare their vessel for potential conversion to LNG operation during construction.
It supports ship owners to make sure that the vessel meets all safety and operational requirements related to global and class standards for gas fuelled operations.
Moreover, it supports to specify and quantify the level of investment, DNV GL stated.