GAR | GRB/2017/5

GRB/2017/5

Proposal for Supplement 3 to the 03 series of amendments to Regulation No. 51

Source(s)

Date

16 Jun 2017

Status

Superseded

Subject

UN R51 Vehicle Noise

Meeting(s)

GRB | Session 66 | 4-6 Sep 2017

Agenda item 4. (b) Regulation No. 51 (Noise of M and N categories of vehicles): Additional sound emission provisions

Agenda item 4. (a) Regulation No. 51 (Noise of M and N categories of vehicles): Development

Agenda item 4. (b) Regulation No. 51 (Noise of M and N categories of vehicles): Additional sound emission provisions

Proposal to

amend the scope to be design-neutral and reflect the driving situations covered by the Regulation;
highlight that ASEP apply to vehicles and their electric sound enhancement systems such as the Audible Vehicle Alert System (AVAS) and silencers equipped with an active cancelling system
update the “backfire” assessment procedure; and
clarify the gear ratio anchor point in Annex 7 as defined via Annex 3

Downloads

UNECE server

Related documents

Excerpts from session reports

GRB | Session 67 | 24-26 Jan 2018

9. GRB recalled the amendment proposals to Regulation No. 51 adopted at the previous session (ECE/TRANS/WP.29/2018/7) and addressed the pending issue on whether or not the adopted proposals would require a new series of amendments and/or transitional provisions. The experts from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) and from OICA presented their views (GRB-67-14 and GRB-67-06). GRB agreed that the adopted proposals should become a new Supplement 3 to the 03 series of amendments to Regulation No. 51 and be accompanied with the following transitional provision (a new paragraph 11.9.):

“11.9.

Until 18 months after the date of entry into force of the Supplement 3, it shall not apply to extensions of existing approvals, originally granted prior to the date of entry into force of Supplement 3.”

10. GRB requested the secretariat to issue, as soon as possible, an addendum to ECE/TRANS/WP.29/2018/7 with the above text, thus allowing Contracting Parties to prepare for its consideration at the forthcoming session of WP.29 in March 2018.

GRB | Session 66 | 4-6 Sep 2017

13. On behalf of IWG ASEP, the expert from France presented its status report to GRB (GRB-66-14). In particular, IWG ASEP had agreed to propose some improvements in the current Annex 7 as soon as possible, as laid down in ECE/TRANS/WP.29/GRB/2017/5, and then to develop a more general and strategic approach of revising Annex 7. The expert from the Russian Federation commented on ECE/TRANS/WP.29/GRB/2017/5 (GRB-66-06). GRB agreed to merge these proposals with the other proposed amendments to the 03 series of amendments to Regulation No. 51 (see para. 9 above).

WP.29 | Session 174 | 12-16 Mar 2018

53. In particular, the GRB chair mentioned that GRB had adopted amendment proposals to Regulation No. 51 which would introduce an option of indoor testing, according to standard ISO 362-3, upon understanding that the Type Approval Authority could always mandate an outdoor test for verification. He further pointed out that GRB had addressed the pending issue of transitional provisions for the earlier amendment proposals to Regulation No. 51 which had been submitted to the March 2018 session of WP.29 as ECE/TRANS/WP.29/2018/7. GRB had agreed that these proposals should be introduced as a Supplement with an 18-month transitional period and requested the secretariat to issue an addendum to ECE/TRANS/WP.29/2018/7.