Starting in 2017, it will be illegal for shippers to dump oil, oily waste or noxious materials into Arctic or Antarctic waters.
That prohibition is part of a set of environmental rules and standards approved on Friday by the International Maritime Organization.
Friday’s action, which followed the approval in November of a set of marine safety standards for ships sailing in polar waters, cements what is now a comprehensive International Code for Ships Operating in Polar Waters — commonly known as the Polar Code.