The 43rd session of the IWG on PTI convened on 8 May 2026 in Brussels. The group reaffirmed the need to strengthen integration between type approval and in-use inspection per WP.29 Whole-Life Compliance framework (WP.29/2023/89). At least 20 UN Regulations contain incomplete, non-harmonised PTI provisions. The IWG agreed to add “Review of PTI provisions in UN Regulations (1958 Agreement)” to its Action Plan and submit a proposal to WP.29 requesting endorsement. Work on diagnostic tools in PTI and automated vehicles inspection continues. The group reviewed recent amendments to UN Regulations Nos. 13 and 13-H for new braking technologies and identified challenges regarding LED replacement light source inspection.

Proposal to insert new clauses to section 8 of the Consolidated Resolution on the Construction of Vehicles (R.E.3) to add provisions 8.40.1. through 8.40.9. establishing requirements for:

• Periodic technical inspection of vehicles, including verification of proper condition and functionality through testing equipment, electronic vehicle interface, scan-tools and manual/visual inspection,
• access to in-vehicle data without changing approved vehicle design or affecting software integrity, functionality of installed safety systems, and cyber security measures,
• manufacturer provision of technical information for testing equipment, electronic vehicle interface, scan-tools and methods,
• vehicle construction providing access to Diagnostic Trouble Code with regard to identify failure of vehicle, equipment and parts,
• definition of failure,
• requirement that Diagnostic Trouble Code be accessible by scan-tools compliant with international standards without manufacturer-specific, user-specific, or tool-specific restrictions,
• cyber security measures not affected,
• application limited to authorized test centers and workshops.

The IWG on PTI Provisions for PTI works on whole-life compliance, testing ADAS/ADS at Periodic Technical Inspection, ePTI provisions, driverless vehicle inspection, and anti-tampering measures across 2025–2027. Provisions for PTI exist in at least 20 UN Regulations as of 8 April 2026, though PTI experts deem some insufficient and additional provisions may be needed. The proposed update procedure requires the IWG to generate a current provisions list, present needs to WP.29, develop proposals for the first 2–3 UN Regulations, defend each proposal in relevant GRs, and transmit outcomes to WP.29 for decision.

The meeting will address coordination of work, pollution emission control in PTI including PN measurement, NOx measurement, and Euro 7, Advanced Driver Assistance Systems and Automated Driving Systems including PTI using diagnostic devices and inspections of automated vehicles, PTI provisions for brakes, lighting devices coordination and inspection, and 1997 Agreement updates.

CITA presented PTI-42-02 to link the PTI informal group’s work to the approval of the EU Roadworthiness Package. FSD proposed work to introduce PTI provisions into UN Regulations under the 1958 Agreement. Japan, Russia, and FSD provided brief updates on the use of diagnostic devices to access to in-vehicle data. CITA updated the group on its views concerning PTI for ADS vehicles. CITA explained GRVA/2025/43, GRVA/2025/44, GRVA/2025/34, and GRVA-23-18/Rev.1 on Electromechanical Braking and Parking Lock Devices which will be considered by WP.29 in March.