15. The expert from Japan presented GRSG-129-20 to reintroduce ECE/TRANS/WP.29/GRSG/2024/38, amended by GRSG-129-21, that improves the effectiveness of Lateral Protection Device (LPD) in preventing left- and right-turn collisions. He underlined the benefits of low ground clearance making LPD more effective by summarizing accidentology data. The expert from the United Kingdom recommended a careful assessment of accidentology, since many of the vehicles still in circulation required exemptions on side guards. He then introduced ECE/TRANS/WP.29/GRSG/2025/3 and GRSG-129-41 amending it, which propose different transitional provisions. The expert from Italy introduced GRSG-129-47-Rev.2, to ensure the correct interpretation of the exemptions on the height of LPD by the Type Approval Authorities. The expert from CLCCR introduced GRSG-129-46 urging that the proposal be paused pending further review, since an impact assessment is needed to confirm costs versus expected benefits. He added that the correct method involves calculating the angle between two ramps using the tangent function based on ground clearance and wheelbase. Finally, GRSG adopted GRSG-129-21-Rev.5, superseding GRSG-129-22, which incorporates the proposals from the experts of the United Kingdom and GRSG-129-47-Rev.2; see annex V of this report. The secretariat was requested to submit the amendments as the proposal of the 02 series of amendments to UN Regulation No. 73, for consideration and vote at the November 2025 sessions of WP.29 and AC.1.

37. The expert from the Kingdom of the Netherlands, on behalf of the Task Force on Automated Vehicles Regulatory Screening (TF-AVRS) introduced the status report of the TF-AVRS (GRSG-131-46). He also introduced proposals of amendments updating the regulations (ECE/TRANS/WP.29/GRSG/2025/18, ECE/TRANS/WP.29/GRSG/2025/20, ECE/TRANS/WP.29/GRSG/2025/26, ECE/TRANS/WP.29/GRSG/2025/27 and ECE/TRANS/WP.29/GRSG/2026/2 to 18) and the latest updated document from the TF superseding part of the official documents (GRSG-131-21 to GRSG-131-43). Then GRSG adopted the following documents he introduced and requested the secretariat to submit them for consideration and vote at the June 2026 session of WP.29 and AC.1:
(a) GRSG-131-22, replacing ECE/TRANS/WP.29/GRSG/2025/18, proposal for Supplement 2 to the 02 series of amendments to UN Regulation No. 39 (Speedometer and Odometer);
(b) GRSG-131-23-Rev.1, replacing ECE/TRANS/WP.29/GRSG/2026/2, proposal for Supplement 13 to the 01 Series of Amendments to UN Regulation No. 43 (Safety Glazing);
(c) GRSG-131-24, replacing ECE/TRANS/WP.29/GRSG/2025/20, proposal for Supplement 1 to the 07 Series of Amendments to UN Regulation No. 46 (Indirect Vision);
(d) GRSG-131-25 replacing ECE/TRANS/WP.29/GRSG/2025/23, proposal for Supplement 5 to the original version of UN Regulation No. 61 (External Projections of Commercial Vehicles);
(e) GRSG-131-26, proposal for Supplement 3 to the 01 Series of Amendments to UN Regulation No. 73 (Lateral Protection Devices);
(f) GRSG-131-27, replacing ECE/TRANS/WP.29/GRSG/2025/26 proposal for Supplement 1 to the 02 Series of Amendments to UN Regulation No. 73 (Lateral Protection Devices);
(g) GRSG-131-28 superseding ECE/TRANS/WP.29/GRSG/2025/27, proposal for Supplement 2 to the Original Version of UN Regulation No. 93 (Front Underrun Protective Devices);
(h) GRSG-131-29 superseding ECE/TRANS/WP.29/GRSG/2026/3, proposal for Supplement 1 to the original version of UN Regulation No. 102 (Close-Coupling Devices);
(i) ECE/TRANS/WP.29/GRSG/2026/4, proposal for Supplement 2 to the 06 series of amendments to UN Regulation No. 110 (CNG and LNG vehicles);
(j) GRSG-131-30, replacing ECE/TRANS/WP.29/GRSG/2026/5, proposal for Supplement 4 to the 01 series of amendments to UN Regulation No. 116 (Protection against Unauthorised Use);
(k) GRSG-131-31, replacing ECE/TRANS/WP.29/GRSG/2026/6, proposal for Supplement 8 to the 01 series of amendments to UN Regulation No. 121 (Identification of Controls, Tell-Tales and Indicators);
(l) GRSG-131-32 replacing ECE/TRANS/WP.29/GRSG/2026/7, Proposal for the 01 series of amendments to UN Regulation No. 122 (Heating Systems);
(m) GRSG-131-33, replacing ECE/TRANS/WP.29/GRSG/2026/8, Proposal for Supplement 1 to the 03 series of amendments to UN Regulation No. 125 (Forward Field of Vision) ;
(n) GRSG-131-34, replacing ECE/TRANS/WP.29/GRSG/2026/9, Proposal for Supplement 2 to the 01 series of amendments to UN Regulation No. 144 (Accident Emergency Call Systems);
(o) GRSG-131-35, replacing ECE/TRANS/WP.29/GRSG/2026/10, Proposal for Supplement 5 to the original version of UN Regulation No. 151 (Blind Spot Information Systems);
(p) GRSG-131-36, replacing ECE/TRANS/WP.29/GRSG/2026/11, Proposal for Supplement 6 to the original version of UN Regulation No. 158 (Devices for Means of Rear Visibility or Detection);
(q) GRSG-131-37, replacing ECE/TRANS/WP.29/GRSG/2026/12, Proposal for Supplement 3 to the original version of UN Regulation No. 159 (Moving Off Information Systems);
® GRSG-131-38, replacing ECE/TRANS/WP.29/GRSG/2026/13, Proposal for Supplement 6 to the original version of UN Regulation No. 161 (Devices against Unauthorised Use);
(s) GRSG-131-39, replacing ECE/TRANS/WP.29/GRSG/2026/14, Proposal for Supplement 7 to the original version of UN Regulation No. 162 (Immobilisers);
(t) GRSG-131-40, replacing ECE/TRANS/WP.29/GRSG/2026/15, Proposal for Supplement 4 to the original version of UN Regulation No. 163 (Vehicle Alarm Systems);
(u) GRSG-131-41, replacing ECE/TRANS/WP.29/GRSG/2026/16, Proposal for Supplement 1 to the 01 series of amendments to UN Regulation No. 166 (Vulnerable Road Users in Front and Side Close Proximity);
(v) GRSG-131-42, replacing ECE/TRANS/WP.29/GRSG/2026/24, Proposal for Supplement 3 to the original version of the UN Regulation No. 167 (Vulnerable Road Users Direct Vision);
(w) GRSG-131-43, replacing ECE/TRANS/WP.29/GRSG/2026/17, Proposal for Supplement 1 to the 01 series of amendments to UN Regulation No. 167 (Vulnerable Road Users Direct Vision).