In 2016, following the EU Regulation 1143/2014[1] on Invasive Alien Species (IAS), the European Commission published a first list of 37 IAS of Union concern.
Since the second update in 2019,[4] 66 species are listed as IAS of EU concern.
[citation needed] The species on the list are subject to restrictions on keeping, importing, selling, breeding and growing.
Member States of the European Union must take measures to stop their spread, implement monitoring and preferably eradicate these species.
Even countries in which they are already widespread are expected to manage the species to avoid further spread.