Within 18 months of the adoption of the Union list, Member States shall establish a surveillance system of invasive alien species of Union concern, or include it in their existing system, which collects and records data on the occurrence in the environment of invasive alien species by survey, monitoring or other procedures to prevent the spread of invasive alien species into or within the Union.
Laistigh de 18 mí ón dáta a nglacfar liosta an Aontais, bunóidh na Ballstáit córas faireachais ar speicis choimhthíocha ionracha is ábhar imní don Aontas, nó cuimseofar é sa chóras atá acu cheana féin, ar córas é lena mbailítear agus lena dtaifeadtar sonraí maidir le speicis choimhthíocha ionracha a bheith sa timpeallacht trí bhíthin suirbhé, faireacháin nó nósanna imeachta eile chun cosc a chur le leathadh speicis choimhthíocha ionracha chuig san Aontas nó laistigh den Aontas.