The world’s first National Technical Reference for Bunker Mass Flow Metering (TR48 : 2015) was launched in support of the Maritime and Port Authority of Singapore (MPA)’s and industry’s initiative to use the mass flow metering (MFM) system for marine fuel oil deliveries in Singapore with effect from January 1, 2017. MPA said the TR sets out clear requirements for measurement and system integrity that provides a fair basis for custody transfer between the bunker supplier and bunker buyer in Singapore. Bunkering in Singapore has grown tremendously since standardized bunker delivery procedures were adopted in the early 1990s. MPA has reported record bunker sales volume of 45.16 million metric tons in 2015, making Singapore the world's largest bunkering port.