- Article
19 Pages
Maritime Autonomous Surface Ships (MASS) are expected to enhance efficiency, safety, and sustainability across the global maritime transport industry, yet the regulatory alignment of the human element remains a central challenge. This research adopts a two-component qualitative design. First, it undertakes a scoping review of the academic literature to trace the technological milestones behind MASS. Second, it undertakes a document analysis of the International Maritime Organization’s (IMO) regulatory instruments, including the Regulatory Scoping Exercise (RSE) and the recently adopted Non-mandatory International Code of Safety for Maritime Autonomous Surface Ships (MASS Code). The findings show that the MASS Code substantially advances the operational principles governing the Master, crew, and remote operators, reaffirming human oversight, control, and continuous responsibility. However, significant uncertainties persist regarding the legal status of these actors under existing instruments such as SOLAS, STCW, and UNCLOS, since the Code detaches command from physical presence on board and allows it to be distributed across onboard personnel and Remote Operations Centers, a shift that binding instruments do not yet accommodate. This research concludes that the MASS Code marks a significant regulatory milestone, but not the end of the debate: the Experience-Building Phase (EBP) introduces an evidence-based stage in which operational experience will be crucial for a future mandatory MASS Code, underscoring the need for coordinated international efforts to close remaining legal gaps.
Laws
31 October 2026



