The Russian government has accepted a 1993 international ban on the dumping of radioactive wastes at sea, the International Maritime Organisation (IMO) has announced. It means all 81 contracting members of the 1972 London Convention on the Prevention of Marine Pollution by Dumping of Wastes and Other Matter have formally promised to cease maritime nuclear dumping. The convention was extended in 1993 to cover all radioactive wastes, having previously only covered high-level radioactive wastes.