The first topical per review took place between 2017 and 2018 and concerned the 'ageing management' of nuclear reactors or, more specifically, the ageing effects on structures, systems and components.
The national assessment reports which were the subject of the peer review are available here: EU Member States / Other countries.
In addition, all questions and answers during the written Q&A phase of TPR1 have been compiled into an Excel file, accessible below.