ClassNK has published Annex 1 Alternative Fuel Ready (Edition 3.0.1) of the Guidelines for Ships Using Alternative Fuels, which summarises the requirements for adding class notations to ships that do not use alternative fuels at the time of construction but are designed and partially equipped to accommodate such fuels in the future. Similarly, requirements for a ready notation to  OCCS are included in the Guidelines for Onboard CO2 Capture and Storage Systems (Edition 2.0).

ClassNK reviewed the concept design of the vessel based on above-mentioned guidelines. Upon confirming compliance with the prescribed requirements, ClassNK issued AiP.