The Informal Working Group on PTI held its 43rd session on 8 May 2026, focusing on whole-life compliance implementation and review of PTI provisions in UN Regulations. The group confirmed that at least 20 UN Regulations contain incomplete, non-harmonised, and sometimes outdated PTI provisions. The IWG agreed to review PTI provisions in UN Regulations, submit proposals to WP.29, consult relevant GRs on suitable inspection methods, and develop targeted amendments to priority Regulations. Work continues on ePTI using diagnostic devices, PTI of automated vehicles, braking system provisions for new technologies, and LED lighting inspection challenges.