The advent of Lung Cancer Screening (LCS), will improve survival in patients at risk of developing lung cancer. It is important to ensure that LCS is practiced at a similar quality level to the trials that have proven its value, in order to ensure that there is maximal benefit from its introduction. The European Society of Thoracic Imaging (ESTI) has introduced the ‘European certification in nodule assessment and lung cancer screening” (ESTI LCS certification) at the beginning of 2020. This certification shall be a common European qualification for nodule assessment and for lung cancer screening. The objective is to standardise training and expertise quality across Europe.