For the implementation of this Regulation, The European Commission is supported by four main bodies.

  • The Committee on invasive alien species (IAS) consists of representatives of all Member States and deals with political decisions and votes. It assists the Commission in the preparation of implementing acts foreseen by the IAS Regulation, mainly the adoption and updates of the list of Invasive Alien Species of Union concern. The Committee makes its decisions based on the qualified majority voting system.
  • The Invasive Alien Species Expert group is made up of representatives of all Member States and deals with items for discussion of any Regulation provision that is not linked to the EU listing process.
  • The Scientific Forum on IAS consists of representatives of the scientific community appointed by the Member States. It provides advice on scientific questions related to the implementation of the IAS Regulation, and evaluates risk assessments.
  • The Working Group on IAS consists of interested stakeholders. It assists the Commission and facilitates coordination with national and EU stakeholders concerned by IAS.


Implementation of the European Regulation on IAS in Belgium mainly relates to nature conservation, which is a competence shared by the Federal authority and the Regions. This includes border control, management of waterways or inspection of pet shops and garden centres. As a consequence, the landscape of competent authorities in charge of the implementation of the IAS Regulation is rather scattered in Belgium:

To ensure proper, coherent and coordinated implementation of the European IAS Regulation, a cooperation agreement between the Federal authority, the Communities and the Regions was established in June to officialise the cooperation between the different competent authorities.