6. GRE recalled that, at its eighty-sixth session, it had supported the concept on vehicle whole-life compliance that had been prepared by the Informal Working Group on Periodical Technical Inspections (IWG PTI) (ECE/TRANS/WP.29/2022/145). GRE noted that a revised version of this document was expected to be presented at the June 2023 session of WP.29.