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UN R46: Proposal for the 06 of amendments
Document GRSG/2023/23
20 July 2023

Proposal from the GRSG task force on UN R46 to

  • clarify the diameter of the impact test rig,
  • introduce provisions for centre-steered vehicles and corresponding magnification factors and for frameless outside mirrors,
  • clarify the possibility of having foldable camera wings,
  • exclude Class I CMS camera (mounted on the roof of the vehicle) from the impact test,
  • clarify impact positions for the pendulum test,
  • remove provisions for surveillance cameras (to be covered under UN R26 and UN R61),
  • replace references to “mirror” with “indirect vision device”,
  • clarify markings for devices capable of displaying more than one field of vision, and
  • clarify positioning of pure Class I CMS.

Status: Superseded
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Previous Documents, Discussions, and Outcomes
4.8.4. | Proposal for 06 series of amendments to UN Regulation No. 46 (Safety glazing)
4. (a) | UN Regulation No. 46 (Devices for indirect vision)

9. The expert from Germany, Chair of TF on UN Regulation No. 46 (Devices for indirect vision) introduced TF status report (GRSG-126-23). He then introduced GRSG-126-24-Rev.1 amending the UN Regulation on those parts agreed so far by TF as a new series of amendments. Many of the experts were in favour of the pendulum with a diameter of 165 ± 1 mm and a 5 ± 1 mm thick rubber covering for the impact test. Finally, GRSG adopted ECE/TRANS/WP.29/GRSG/2023/23 as amended by GRSG-126-24-Rev.1 and GRSG-126-25-Rev.1. The secretariat was requested to submit GRSG-126-25-Rev.1 as draft Supplement 1 to the 05 series of amendments (as reproduced by annex III to the report) and ECE/TRANS/WP.29/GRSG/2023/23 (as amended by annex III to the report) as draft 06 series of amendments to UN Regulation No. 46, for consideration and vote at the March 2024 sessions of WP.29 and AC.1. GRSG agreed that TF work would continue to solve the remaining issues in UN Regulation No. 46.

5. (b) | UN Regulation No. 61 (External projections of commercial vehicles)

15. As per agenda item 5(a), GRSG agreed to defer discussion on this agenda item at its April 2024 session.

4. (a) | UN Regulation No. 46 (Devices for indirect vision)

10. The expert from OICA introduced ECE/TRANS/WP.29/GRSG/2023/9 which aims to introduce provisions adapted to centre-steered vehicles of categories M2, M3, N2 and N3. The expert from Germany raised a study reservation on the proposal and requested full feedback for the October 2023 session of GRSG. He suggested in the meantime to establish a TF to provide a thorough proposal of amendments to the UN Regulation at the next session of GRSG. The experts from France and the Netherlands supported the suggestion from the expert of Germany expressing the need of a thorough study of the magnification factors. Moreover, the expert from OICA introduced ECE/TRANS/WP.29/GRSG/2023/16 and amendment GRSG-125-03-Rev.1, on the provisions for exterior rear-view mirrors fixed to the protective housing. At the same time the expert from the Republic Korea introduced GRSG-125-24 that shows two different interpretations of the diameter of the sphere used for the impact test rig in UN Regulation No. 46, and compares it to similar headforms used in other UN Regulations and in UN GTR No. 9. The expert from Canada confirmed that in his national standard, the outer diameter was 165 mm. Finally, GRSG endorsed the establishment of a TF led by the expert from Germany with the expert from OICA for secretary tasks, and agreed on ECE/TRANS/WP.29/GRSG/2023/9, ECE/TRANS/WP.29/GRSG/2023/16, GRSG-125-03-Rev.1 and GRSG-125-24 as a basis for its work.

11. Finally, the expert from OICA introduced GRSG-125-30, to clarify the provisions of the UN Regulation to allow foldable wings for camera monitoring systems (CMS). The experts from United Kingdom suggested that the proposal should clarify the deployment time of the CMS. GRSG agreed to resume discussion at its October 2023 session on a revised proposal submitted by the expert from OICA. GRSG also noted that if a new replacement proposal was not received by the secretariat, GRSG-125-30 should be confirmed for submission as an official document before the deadline.

Related and Previous Documents
GRSG-125-24
GRSG/2023/9
GRSG/2023/16
GRSG-125-03/Rev.1
GRSG-125-30
GRSG/2023/24
GRSG-126-24/Rev.1
GRSG-126-25/Rev.1
WP.29/2024/14
Relates to UN R46 |