The Working Group 12 (WG12) of the International Tunnelling and Underground Space Association (ITA)on sprayed concrete use has published reports for almost three decades showing the advantages of using sprayed concrete for permanent lining of tunnels. The first illustrated the state of the art in 15 countries (Franzén, 1993). The main idea behind the reports has been to show how reliable sprayed concrete can be for that purpose. ln 2020, the Working Group joined efforts with the ITAtech Activity Group on sprayed concrete and produced the report 'Permanent Sprayed Concrete Linings·(ITA, 2020). This review will focus on the 2020 report, hereafter referred to as the Report.