The aim of this Research Report is to describe and assess the threats posed by bark beetles in the genus Ips that are subject to Protected Zone (PZ) status in the UK. Information from this report will be used to determine the efficacy of the UK’s PZ status by assessing the value at risk from the various Ips species. In parallel to assessing measures to prevent the transport and potential establishment of these pests, consideration is also given to possible management regimes, consisting of eradication, containment, slowing the spread of the pests and, ultimately, living with them.