Liquefied natural gas (LNG) is fuel gas that has been changed over to liquid form for simplicity of storage or transport. It is colorless, odorless, non-corrosive and non-toxic. Bunkering is the providing of fuel for use by ships, and incorporates the shipboard coordination of loading fuel and delivering it among accessible bunker tanks. Bunker is usually applied to the capacity of petroleum-based commodities in tanks, and the training and business of refueling ships. Bunkering tasks are placed at seaports. They integrate the storage space of ship fuels and the provision of the fuel to vessels. LNG Bunkering is the act of giving liquefied natural gas fuel to a boat for its own utilization. LNG bunkering foundation can be utilized to supply zero-carbon fuels in the form of liquefied biomethane (LBM) or liquefied synthetic methane (LSM), with practically no modification, so empowering the progress to a decarbonized shipping industry. LNG bunkering ports and fortification vessels can be establish on SEA-LNG's Bunker Navigator. The key benefit of LNG as a fuel is the tremendous decrease in pollutant caused by the more conventional technique for fueling boats, for example, heavy fuel oil, marine gas oil (MGO), and marine diesel fuel (MDO). The LNG bunkering between shore to ship or ship to ship is finished by utilizing a QC/DC coupling. QCDC represents speedy connect disconnect.