Session report of WP.29 (World Forum for Harmonization of Vehicle Regulations), its Administrative Committee of the 1958 Agreement (AC.1), Executive Committee of the 1998 Agreement (AC.3), and Administrative Committee of the 1997 Agreement (AC.4) held 23-26 June 2026 in Geneva. AC.1 voted on 92 amendments to existing UN Regulations, one corrigendum to UN Regulation No. 79, and three new UN Regulations (Nos. 184-186) on liquid hydrogen vehicle safety, automated driving systems, and tyre abrasion performance. AC.3 established UN GTR on automated driving systems and adopted corrigendum to UN GTR No. 9 and Amendment 2 to UN GTR No. 13. WP.29 extended mandates of several informal working groups and noted accession of Mongolia and Armenia to the 1958 and 1997 Agreements respectively.

Proposal to insert new introductory paragraphs 0. and 0.1. to 0.1.3., amend paragraph 1.1. footnote 1, amend paragraph 2.5., and amend paragraph 4.4.1. footnote 3 to UN R61. The supplement extends application to vehicles of categories X and Y without driver, driver cab, or manual driving controls, and vehicles with manual mode operating above 6 km/h equipped with an Automated Driving System. Provisions related to driver, driver cab, or manual driving controls shall not apply if not covered by the amendment. For vehicles of category Y without a cab, the cab rear panel shall be replaced by a theoretical vertical transversal plane located 350 mm behind the rearmost point of the tyre of the foremost front axle.

Proposal to amend and supersede ECE/TRANS/GRSG/2025/23. Supplement 45 to the original version of UN R61 introduces provisions for vehicles of categories X and Y, and vehicles with manual mode operating at speeds above 6 km/h equipped with an Automated Driving System Feature of Type 2. The Regulation is extended to vehicles without driver, driver cab, and manual driving controls. Definitions are amended to account for vehicles without a driver’s cab, and new paragraphs define ADSF-1 and ADSF-2.

Five documents propose amendments to UN R46 series 02-07 to align requirements with UN R26 and UN R61, particularly regarding soft parts of camera monitoring systems and mirrors based on Shore A hardness. The 05 series introduced alignment requirements; harmonization is proposed for earlier series with existing approvals.