WP.29/2026/72
UN R174: Proposal for a Supplement 1 to the 01 series of amendments
Source(s)
GRSP
Date
2 Apr 2026
Status
Formal WP.29 review
Subject
Impact
01 series of amendments | Supplement 1
Meeting(s)

Proposal to clarify exemptions for folding seats, delete a condition on neutral transmission position for first-level warnings, harmonize the “vehicle master control switch” definition with UN R159, ensure drivers receive initial warnings when entering vehicles with remotely activated switches, ensure clear voice communication during emergency calls, and enable application of UN R174 to vehicles of category X, including requirements for safety-belt reminders in first-row seats of category X vehicles and permission for ADS management of safety-belt reminders if equivalent safety is provided.

Downloads
UNECE server
Related documents
GRSP/2025/26
UN R174: Proposal for a Supplement 1 to the 01 series of amendments (Superseded)
GRSP/2025/43
UN R174: Proposal for a Supplement (Superseded)
GRSP-78-49
UN R174: Proposal for supplement 1 to 01 series of amendments (Superseded)
Excerpts from session reports
GRSP | Session 78 | 1-4 Dec 2025

40. The expert from OICA presented ECE/TRANS/WP.29/GRSP/2025/43 with a proposal to allow the discontinuation of second level warnings when other audible safety warnings are triggered. The experts from France, Republic of Korea and United Kingdom supported the idea in principle but thought that the text needed to be more precise. The expert from OICA offered to work with interested parties to further refine the proposal.

42. GRSP noted that at its November 2025 session, WP.29 reaffirmed its objective to adopt all documents related to the review of existing UN Regulations related to Automated Driving Systems (ADS) at its June 2026 session and invited the Chairs of the Working Parties to consider various strategies to ensure timely preparation of the required documents. This corresponded to option 1 in informal document WP.29-197-25 and would require all proposals under this agenda item to be adopted by GRSP on this session.

43. Following a general update by the expert from Germany on the first day of the meeting, the GRSP Task Force on Automated Vehicles Regulation Screening (TF-AVRS) continued work on the margins of the meeting to refine the proposals and submitted a number of informal documents to amend the proposals in working documents under this agenda item. GRSP adopted the following proposals :

  1. ECE/TRANS/WP.29/GRSP/2025/11 as amended by GRSP-78-48 as amended (as reproduced in annex IX), with a proposal for supplement 3 to the 04 series of amendments to UN Regulation No. 11,
  2. ECE/TRANS/WP.29/GRSP/2025/12 as amended by GRSP-78-38 (as reproduced in annex X), with a proposal for supplement 1 to the 05 series of amendments to UN Regulation No. 12,
  3. ECE/TRANS/WP.29/GRSP/2025/13 as amended by GRSP-78-32 (as reproduced in annex XI), with a proposal for supplement 5 to the 09 series of amendments to UN Regulation No. 14,
  4. ECE/TRANS/WP.29/GRSP/2025/15 as amended by GRSP-78-33 (as reproduced in annex XII), with a proposal for supplement 3 to the 10 series of amendments to UN Regulation No. 16,
  5. ECE/TRANS/WP.29/GRSP/2025/16 as amended by GRSP-78-42 (as reproduced in annex IV), with a proposal for supplement 1 to the 12 series of amendments to UN Regulation No. 17,
  6. ECE/TRANS/WP.29/GRSP/2025/17 as amended by GRSP-78-31 (as reproduced in annex XIII), with a proposal for supplement 6 to the 01 series of amendments to UN Regulation No. 21,
  7. ECE/TRANS/WP.29/GRSP/2025/18 as amended by GRSP-78-30 (as reproduced in annex XIV), with a proposal for supplement 7 to the 03 series of amendments to UN Regulation No. 29,
  8. ECE/TRANS/WP.29/GRSP/2025/19 as amended by GRSP-78-23-Rev.1 (as reproduced in annex XV), with a proposal for supplement 2 to the 05 series of amendments to UN Regulation No. 94
  9. ECE/TRANS/WP.29/GRSP/2025/20 as amended by GRSP-78-40, as amended (as reproduced in annex XVI), with a proposal for supplement 2 to the 06 series of amendments to UN Regulation No. 95
  10. ECE/TRANS/WP.29/GRSP/2025/33 as amended by GRSP-78-35-Rev.1 as amended (as reproduced in annex V), with a proposal for supplement 1 to the 05 series of amendments to UN Regulation No. 100,
  11. ECE/TRANS/WP.29/GRSP/2025/36 as amended by GRSP-78-29 (as reproduced in annex XVII), with a proposal for supplement 4 to the 04 series of amendments to UN Regulation No. 127
  12. ECE/TRANS/WP.29/GRSP/2025/22 as amended by GRSP-78-39-Rev.1 as amended (as reproduced in annex VII), with a proposal for supplement 4 to the 02 series of amendments to UN Regulation No. 134
  13. ECE/TRANS/WP.29/GRSP/2025/34 as amended by GRSP-78-43 (as reproduced in annex XVIII), with a proposal for supplement 4 to the 02 series of amendments to UN Regulation No. 135
  14. ECE/TRANS/WP.29/GRSP/2025/23 as amended by GRSP-78-24-Rev.1 (as reproduced in annex XIX), with a proposal for supplement 1 to the 04 series of amendments to UN Regulation No. 137
  15. ECE/TRANS/WP.29/GRSP/2025/24 as amended by GRSP-78-27 (as reproduced in annex XX), with a proposal for supplement 2 to the 01 series of amendments to UN Regulation No. 145
  16. ECE/TRANS/WP.29/GRSP/2025/35 as amended by GRSP-78-28-Rev.1 (as reproduced in annex XXI), with a proposal for supplement 1 to the 01 series of amendments to UN Regulation No. 153
  17. ECE/TRANS/WP.29/GRSP/2025/25 as amended by GRSP-78-41 (as reproduced in annex XXII), with a proposal for supplement 2 to the 01 series of amendments to UN Regulation No. 173, and
  18. ECE/TRANS/WP.29/GRSP/2025/26 as amended by GRSP-78-49 (as reproduced in annex XXIII), with a proposal for supplement 1 to the 01 series of amendments to UN Regulation No. 174,
and requested the secretariat to submit them to the June 2026 sessions of WP.29 and AC.1.

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