It seems inconceivable, certainly unbelievable, that having paid up to millions of dollars for
fuel for a vessel to operate, the owners of the vessel and/or the charterers then should have to check themselves that the fuel is actually of a standard that complies with regulations and what they paid for! says a press release published by the American Club which guides shippers from IMO 2020 Fuel Hazards.
The guidance available on the American Club website highlights how the whole concept seems...
http://mfame.guru/faq-guidelines-to-protect-ship-crew-from-2020-fuel-hazard/