Data communication responsibilities for cargo care in autonomous ships: A voyage charterparty perspective.

The progression toward Maritime Autonomous Surface Ships (MASS) invites a reassessment of how traditional charterparty duties will operate in a data-driven maritime environment. English law has long located responsibility for cargo safety within the duties of seaworthiness and care for cargo, both founded on the assumption of human oversight and direct operational control. As vessels become increasingly autonomous, those duties will rely on the accuracy, timeliness, and security of data transmitted between shipowners and charterers. This article considers whether the existing doctrines of seaworthiness, particularly cargoworthiness, and cargo care provide a sufficient legal foundation for these data communication responsibilities, or whether future voyage charterparties will need to recognise them as a separate contractual obligation. The analysis evaluates the capacity of English common law principles to extend to digital operations by examining how established existing law might be reinterpreted to address failures in data exchange. It argues that while fundamental aspects of these doctrines can evolve to encompass data integrity, they are unlikely to offer complete protection in autonomous contexts. Effective risk allocation will therefore depend on express charterparty clauses codifying reciprocal duties of data accuracy, timeliness, and confidentiality. Anticipating this evolution is essential to preserve legal certainty and commercial reliability in the transition to autonomous cargo operations.