multipurpose vessel

A multipurpose vessel (MPP) is a general-cargo ship designed to handle a wide variety of cargo types — unitised containers, bagged or palletised breakbulk, rolls of steel, timber, project cargo, and occasionally heavy lifts — without relying on shore-based equipment. Most MPPs are self-sustaining, carrying one or more deck cranes with SWLs of 40–150 tonnes. Tweendeck configurations allow segregation of cargo types and species-sensitive goods. Typical sizes range from 3 000 to 15 000 DWT, though larger MPPs exist. MPPs serve liner trades on secondary or thin routes where container vessels call infrequently, as well as tramp operations moving project cargo to remote or underdeveloped ports. The combination of geared capability, moderate draught, and ice-class options on some vessels makes them particularly useful in Arctic or restricted-draught regions. Vessels must comply with SOLAS Chapter II-1 for structural integrity and machinery, the CSS Code for cargo securing, and SOLAS Chapter VI (carriage of cargoes). Where hazardous goods are transported, IMDG Code requirements apply. The ISM Code (SOLAS Chapter IX) mandates a documented Safety Management System regardless of trade. For a comparison with breakbulk and heavy-lift types, see the /reference/ship-types page.