International Convention for the Prevention of Pollution from Ships, 1973, as modified by the Protocol of 1978 relating thereto, includes regulations aimed at preventing and minimizing pollution from ships by accident and by routine operations.

Metric ton

A unit of weight equal to 1,000 kilograms.

MR (Medium Range Product Carrier)

A product Tanker in approximately the 40,000 dwt to 55,000 dwt size range with internally coated tanks to prevent corrosion and facilitate cleaning when switching between cargoes.