I have mentioned this several times before: GPS signals (and GNSS more broadly) are essential for the safe day-to-day operation of the maritime sector. We have already discussed the risks associated with spoofing or jamming of these signals, the specific risks related to autonomous maritime vehicles, as well as several real-world examples, including incidents in the Persian Gulf.

On March 10, 2020, the United States formally raised concerns with the Maritime Safety Committee of the International Maritime Organization (IMO) regarding the increasing number of disruptions affecting GPS and GNSS signals. The submission, available here, calls on the IMO to urgently address cases of jamming and spoofing that threaten the safety of ships and seafarers.