Results of the review of proposals for UN Regulations R28, R51, R64, R138, R141, R142, and R165 regarding autonomous vehicle readiness. Key findings include: inconsistent Mass in Running Order definitions between R51 and R138 versus RE3; unclear special testing provisions in R64, R138, and R165; need for clarification on ADS optical and logical signal transition in R64; redundant full definitions from RE3 in multiple proposals should reference RE3 via footnote instead; inconsistent ADS activity terminology across R64, R141, and R165 should be standardized; incorrect Category Y references in R51 Table 2; and definition and spelling errors in R51, R138, R141, and R165.

Proposal to add a new Table of contents section 7 for special provisions testing vehicles equipped with an ADS; amend footnotes in paragraphs 1.1. and 2.2.; amend paragraph 6.1.3. on available sounds; insert new paragraphs 11.4. through 11.8. define Automated Driving System, Dynamic Driving Task, and Category X and Y vehicles; amend paragraph 14.1.5. on available sounds; amend paragraph 14.3. on pause function for manual and ADS operation; insert new item 0.13. in Annex 1B, Appendix 1 regarding ADS equipment; and insert new Annex 7 with special provisions for testing vehicles equipped with an ADS.

CLIV is developing a new UN Regulation for vehicle categories M1, M2, M3, and N1 in Phase 2. The draft regulation requires visual and audible external warnings upon detection of a child left in a vehicle. Visual warnings use direction indicator lamps flashing in SOS morse code pattern for at least 15 seconds, then off for no more than 30 seconds, repeating for at least 10 minutes. Audible warnings must exceed 60dB(A) following the same timing pattern. The IWG requests guidance on potential amendments to UN R48, UN R28, and UN R165.

Proposal to replace ECE/TRANS/WP.29/GRBP/2025/22

Proposal from the GRBP task force on Automated Vehicles Regulation Screening to amend UN R165 to enable application to ADS vehicles.

Proposal for a reference document concerning a general approach for how to handle measurement uncertainties under UN Regulations within the purview of GRBP.

Proposal to amend the provisions for a pause function for reversing warning systems with the aim to comply with the national environmental (noise) restrictions.

Proposal from GRBP for a new UN Regulation concerning the type approval of audible reverse warning devices and of motor vehicles with regard to their audible reverse warning signals.

Proposal for amendments to ECE/TRANS/WP.29/GRBP/2022/5

Text, all tables and figures in this proposal have been prepared by the experts of the Task Force on Reverse Warning Sound (TF RWS) with the aim to draft a new UN Regulation concerning the approval of audible reverse warning devices and of motor vehicles with regard to their audible reverse warning signals.

Revised version including task force chair’s comments of the original OICA submission.

Consolidation of comments from documents TFRWS-15-03-Rev.3 and TFRWS-16-03-Rev.1.

Updated comments prepared by the secretary based on Japan’s original document.

Comments as revised during the 15th TFRWS session.

Document prepared by the TFRWS secretary per the 15th session discussions.

Task force draft text based upon the original proposal from Japan.

Status report

Revised text based upon document TFRWS-06-09/Rev.3.

Presentation of information confirming that there would be no conflict between the draft proposal of minimum reverse-warning requirements and UN R138 on quiet road transport vehicles (audible approaching vehicle warning systems).

Summary of discussions in the VRU-Proxi informal group on reversing detection and field of view.

Task force chair discussion presentation on “How to Reflect Revisions on Requirements for Backward Field of Vision – by Transcription or by Reference? Advantages and Disadvantages”.