Interpol: Blocking access to child abuse material

At the 2009 INTERPOL General Assembly, member countries voted unanimously to adopt a Resolution [...] to limit the online distribution of child sexual abuse images.

The Resolution encourages member countries to promote the use of all the technical tools available, including access blocking of websites containing child sexual abuse images. [...]

INTERPOL has chosen to offer the "Worst of”-list to any ASP that would like to limit the distribution of child sexual abuse material in their network.