SPECIES OF UNION CONCERN
The list of Invasive Alien Species of Union concern is at the heart of the IAS Regulation.
It is a dynamic list, which means that the Commission and Member States can propose new species for inclusion. A species makes it onto the list based on evidence-based risk assessments. Click here to learn more about the process, from proposal to potential inclusion on the Union List.
The current list contains 114 species, which includes 65 animals and 49 plants. The first Union list entered into force on 3 August 2016. The list was subsequently updated in August 2017, August 2019, August 2022 and August 2025. This last update added 26 species to the list.
Click below to find out more about those species.
Still curious? Read the European Commission brochure on all listed invasive alien species of Union Concern here.