More specifically, the bunkering license will be a requirement for bunker ships that supply fuel oil and (bio)diesel to seagoing vessels.

Its aim is to ensure that bunkering operations take place in a safe and environmentally responsible manner.

Another target is to advance transparency and reduce dispute cases as seen in the ports of Singapore and Gibraltar, said the port authority.

In addition, it sets standards for suppliers on sampling and quality management. However, the use of mass flow meters is not necessary.

The license can last for two years, but if the supplier is not active for over a year, it could be withdrawn.