The 198th session of WP.29 (March 2026) adopted amendments to 21 existing UN Regulations, a corrigendum to UN Regulation 49, five new UN Regulations [179], [180], [181], [182], and [183], and an amendment to Schedule 2 to the Agreement. All amendments and the corrigendum have a provisionally determined entry into force date of 2 October 2026 while the four new UN Regulations adopted in March have expected EIF on 20 October 2026 (see ECE/TRANS/WP.29/1190, para. 114). Depositary notifications are available at http://treaties.un.org.

PTI IWG activities include:

• Reviewing NOx measurement and emissions testing,
• assessing implications of new Euro 7 UN Regulations (Nos. 179 & 180),
• continuing work on diagnostic devices in PTI (ePTI),
• discussing PTI approaches for automated vehicles,
• reviewing new braking technologies,
• identifying inspection challenges for LED lighting systems,
• launching a review of PTI provisions in UN Regulations,
• consulting relevant GRs on inspection methods,
• developing amendments for priority UN Regulations,
• submitting proposals to WP.29 for endorsement.

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 The group confirmed that at least 20 UN Regulations contain incomplete, non-harmonised, and sometimes outdated PTI provisions.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.

The secure internet database DETA for exchanging approval documentation between Contracting Parties of the 1958 Agreement has 41 notified Focal Points, approximately 132,000 uploaded approvals from 22 Technical Approval Authorities, and approximately 7,735 uploaded manufacturers. Migration to a new software version is underway with internal tests running and external testing with other Technical Approval Authorities just started. New features include two factor authentication, mailing and notification functions, adaptation of guidelines regarding notification, additional languages, and easier administrator adaptations. The acronym DETA shall retain its well-known usage with new meaning: Data Exchange for Transport Authorities.

The IWG on DETA held its 56th session on 18 June 2026, approving the provisional agenda and draft minutes of the 55th session. The group reported 132,000 approvals uploaded by 23 approval authorities. A new DETA software version under testing includes two-factor authentication, an email system replacing the ‘News’ section, and French and Spanish language support. The IWG agreed to change DETA’s meaning from “Database for the Exchange of Type Approval Documentation” to “Data Exchange for Transport Authorities”. Discussions addressed potential DETA use for sharing technical information on brake emissions and adding an attribute indicating the latest series of amendments for approvals. The next meeting is scheduled for 13 November 2026 in Paris.