GRVA-25-36
UN R152: Proposal to amend GRVA/2026/21

Proposal to remove para. 5.2.1.2. titled “Emergency braking” and delete the corresponding justification text “Update to paragraph 5.2.1.2.” At the January 2026 GRVA, it was agreed not to proceed with an amendment proposed to para. 5.2.1.2. The current proposal GRVA/2026/21 does not reflect the discussions from the previous session of GRVA.

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Excerpts from session reports
GRVA | Session 25 | 18-22 May

55. During the consultations, the expert from Japan, Co-Chair of the Informal Working Group (IWG) on Advanced Emergency Braking Systems (AEBS), presented the status report of the group (GRVA-25-49). He highlighted the outcome of the group’s first meeting, its proposal for amendments to the terms of reference (GRVA-25-50/Rev.1), and the tentative schedule of future meetings. The expert from Germany presented considerations regarding a Blind Spot Information System for the detection of bicycles and proposed exploring automatic brake intervention in the context of blind-spot-related safety, possibly under UN Regulation No. 151. The experts did not reach consensus and agreed to continue discussions in September 2026. The expert from Australia introduced ECE/TRANS/WP.29/GRVA/2026/21, aimed at addressing ambiguities in the 02 series of amendments to UN Regulation No. 152 and its supplements, as well as ECE/TRANS/WP.29/GRVA/2026/22, containing editorial amendments.

56. GRVA endorsed the status report of the IWG on AEBS (GRVA-25-49).

57. GRVA adopted the revised terms of reference for the IWG on AEBS (GRVA-25-50/Rev.1 reproduced in Annex III).

58. GRVA decided to defer ECE/TRANS/WP.29/GRVA/2026/21 and GRVA-25-36 to the IWG on AEBS.

59. GRVA adopted ECE/TRANS/WP.29/GRVA/2026/22 and requested the secretariat to submit it to WP.29 and AC.1 as draft supplements to the original version and 01 series of amendments to UN Regulation No. 152 for consideration and vote in November 2026.

60. GRVA agreed to resume discussion of GRVA-25-08 in September 2026.

GRVA | Session 26 | 14-18 Sep

60. The representative of Japan, Co-Chair of the IWG on AEBS, presented the status report of the group (GRVA-26-13). He reported on the outcome of the most recent meeting, held online on 18 June 2026, and on the group’s data collection activities, including: (a) relevant accident data from various jurisdictions; (b) existing regulations, technologies (e.g. NCAP) and the state of the art; and © state-of-the-art performance requirements for collision scenarios involving pedestrians at night. He also presented the schedule of meetings envisaged for 2027 and introduced document ECE/TRANS/WP.29/GRVA/2026/38, submitted by the group for consideration at this session.

61. Following discussion, GRVA agreed to keep document ECE/TRANS/WP.29/GRVA/2026/38 on the agenda for consideration at its next session.