The Convention on Biological Diversity (1992) is the Framework Convention of the United Nations for the protection and conservation of ecosystems and wild fauna and flora.

Its Article 8 h) requires States to take all measures that they deem appropriate to deal with the IAS and also prevent their entry.

A comprehensive approach is necessary since all States are affected by the problem. In 2002, the 6th Conference of the Parties has established guidelines for the implementation of Article 8 h). For this purpose, it adopted the Decision VI/23: "Alien species that threaten ecosystems, habitats or species."

These guidelines are organised around three axes:

  • prevention;
  • introduction of species;
  • mitigation of impacts.

In 2010, the Tenth Conference of the Parties in Nagoya (Japan) adopted a Revised and updated strategic plan for biological diversity (2011-2020), including the Aichi Biodiversity Targets "Living in harmony with nature".

The 9th target sets a specific policy target for the IAS:

"By 2020, invasive alien species and pathways are identified and prioritised, priority species are controlled or eradicated, and measures are in place to manage pathways to prevent their introduction and establishment of these species".

"Quick Guide to the Aichi Biodiversity Targets - Invasive alien species and controlled" (available in English only)

Belgium must therefore apply the guidelines. It must also implement the Aichi target pertaining to the IAS. To achieve this target, it is required that this be done through a National biodiversity strategy, comprising an action plan (NBSAP).