Seafarers working aboard vessels transporting Iranian oil and gas often need to learn how to turn off the AIS transponders and simultaneously maintain safe distances from nearby ships.
Whenever possible, they also have to carry out ship-to-ship transfers in cloudy weather so that satellites cannot catch the movements of their vessels.
All their efforts are to hide the origin of cargo so that operators can stay under the radar of US authorities, which have imposed sanctions on Iranian energy exports.
