The marine shipping and transportation sector is rapidly adopting LNG as a bunker fuel. Compared to the diesel and fuel oil traditionally used, LNG decreases carbon dioxide emissions and nearly eliminates nitrogen oxides (NOx) and sulfur emissions. LNG is therefore an ideal fuel to comply with IMO 2020 regulations and aid in the global energy transition to reduce carbon emissions. However, widespread use of LNG through global ports is limited by infrastructure to supply it where needed. Each port, and even each vessel, has different requirements for volumes, available space, draft, and transfer capability. No single solution is adequate for every locale and every ship; the optimal choice of LNG supply configuration depends on the constraints of each situation.