Adoption: 5 October 2001

Entry into force: The convention will enter into force 12 months after 25 States representing 25% of the world's merchant shipping tonnage have ratified it. See status on conventions

The International Convention on the Control of Harmful Anti-fouling Systems on Ships will prohibit the use of harmful organotins in anti-fouling paints used on ships and will establish a mechanism to prevent the potential future use of other harmful substances in anti-fouling systems.