A temporary idling of a vessel with full crew and systems maintained, enabling rapid return to service when market conditions improve.
In practice
Hot lay-up is primarily a commercial decision reflecting freight market conditions, and the shipowner or operator must weigh the ongoing cost of crew wages, fuel, port dues, and maintenance against the cost of cold lay-up preparation and the potential loss of a cargo opportunity. Under MLC 2006, crew members in hot lay-up retain all their contractual and statutory entitlements including wages, food, accommodation, and repatriation rights. The ISM Code requires that SMS procedures continue to be implemented and that non-conformities continue to be reported even during lay-up.
Regulatory detail & full definition
Hot lay-up is a temporary operational status applied to a vessel when there is insufficient employment to justify active trading, but market recovery or employment prospects are expected within a relatively short period. In hot lay-up, the vessel retains a full or near-full crew, all main machinery and auxiliary systems are maintained in a ready state, statutory certificates remain current, and the vessel can typically return to service at relatively short notice — within days rather than months. Fuel consumption continues, as heating, power generation, and machinery preservation systems remain active.
Hot lay-up is primarily a commercial decision reflecting freight market conditions, and the shipowner or operator must weigh the ongoing cost of crew wages, fuel, port dues, and maintenance against the cost of cold lay-up preparation and the potential loss of a cargo opportunity. Under MLC 2006, crew members in hot lay-up retain all their contractual and statutory entitlements including wages, food, accommodation, and repatriation rights. The ISM Code requires that SMS procedures continue to be implemented and that non-conformities continue to be reported even during lay-up.