Article 4 3.

they are found, based on available scientific evidence, to be alien to the territory of the Union excluding the outermost regions;

they are found, based on available scientific evidence, to be capable of establishing a viable population and spreading in the environment under current conditions and in foreseeable climate change conditions in one biogeographical region shared by more than two Member States or one marine subregion excluding their outermost regions;

they are, based on available scientific evidence, likely to have a significant adverse impact on biodiversity or the related ecosystem services, and may also have an adverse impact on human health or the economy;

it is demonstrated by a risk assessment carried out pursuant to Article 5(1) that concerted action at Union level is required to prevent their introduction, establishment or spread;

it is likely that the inclusion on the Union list will effectively prevent, minimise or mitigate their adverse impact.