Proposal to allow vehicles to be run at idle during the test procedures and to change the minimum sound level requirement for vehicles of category M and N and motorcycles of a power greater than 7 kW from 93 dB to 87 dB.

Proposal to introduce a calculated engine speed (in addition to measured engine speed) for MT vehicles and for continuously variable transmission (CVT)/automatic transmission (AT) with locked gear mechanism into UN Regulation No. 41 for the tests in Annex 3 and Annex 7 (Additional sound emission provisions – ASEP)

This proposal further refines and clarifies the 03 series of amendments to UN R51 from Informal Working Group on UN Regulations Nos. 51 and 59. The 03 series was proposed in document GRB/2014/5 which was amended and then adopted by the Working Party on Noise during its 60th session. The proposal includes special provisional limits for Chinese micro-vehicles which are being reviewed by Japan.

Further refinements to the 02 series of amendments prepared by the Informal Working Group on UN Regulations Nos. 51 and 59. This submission proposes to clarify the amended text of document WP.29/2015/4 which was adopted during the March 2015 WP.29 session.

Proposal to update the reference to the latest version of ISO 10844 and to introduce transitional provisions for the shift of the test track requirements from ISO 10844: 1994 to ISO 10844: 2014.

Proposal for a new time measurement accuracy for instrumentation involved in the rolling resistance method (Annex 6 of the UN Regulation) and to restore transitional provisions incorrectly deleted by Supplement 6 to the 02 series of amendments. The proposal also updates the test-track references to the recently published ISO 10844:2014.

Proposal to prepare an amendment to UN Global Technical Regulation (GTR) No. 16 on tyres in order to introduce provisions concerning wet grip performance, rolling resistance, and qualification of tyres for use under severe snow conditions in accordance with the same provisions introduced recently into UN Regulation No. 117.

Table comparing the provisions of the proposed US Federal Motor Vehicle Standard 141 on minimum sound requirements for electric and hybrid vehicles with the draft UN Regulation on vehicles with reduced audibility.

Presentation of WBU testing of AVAS as proposed by the draft UN Regulation (i.e., 50/56 DBA). Based upon this research, the WBU states the the proposed AVAS requirement would have little impact on the sound-recognition of quiet vehicles.

Working draft of the proposed regulation to require minimum sound levels for electric and other quiet vehicles as developed during the 4th session of the QRTV informal working group.

Final proposal as agreed within the informal working group for presentation to GRB.

Proposal to update and clarify the regulation. The proposal refines definitions, removes the “AWD” abbeviation for “audible warning device” to avoid confusion with its more common use for “all wheel drive”, adds T category agricultural vehicles to the scope, modifies some administrative communications, and proposes three-direction acoustic measurements.

In response to concerns that approval agencies may not grant manufacturers the additional 1dB for L(wot) on conformity of production tests as changes had been made to Annex 6 of R41-04, GRB issued an interpretation recorded in the report of its 56th session. The proposal formalizes the interpretation as an explicit provision of the regulation.

Proposal to modify the marking requirements to replace PSI with kilopascals (“kPa”). The intent is to harmonize the pressure indication and avoid confusion between UN Regulation No. 54 and US FMVSS 119 or FMVSS 139.

Proposal to:
a) Align definitions and content with the other tyre regulations (UN Regulations Nos. 30, 54, 75 etc.);
b) Include a definition of “manufacturer” extracted from the resolution “R.E.3”;
c) Adopt a common definition and use of the terms “Manufacturer’s name”, “Brand name”, “Trademark”, “Trade description” and “Commercial name” and their links; and
d) Add information in the certificate to enable approval authorities to more easily understand the products the certificate addresses.

WBU and European Blind Union statement critical of the current draft UN Regulation for failing to adequately address the needs of the visually impaired.

At the GRB meeting in January 2015 the Netherlands introduced a justification and proposal for future tyre noise limits (document GRB-61-03). During the discussion, it was suggested to investigate whether difference in performance existed between Original Equipment Manufacturer (OEM) tyres and replacement tyres, noting that the transitional provisions in EC/661/2009 take into account the earlier introduction of noise limits of OEM tyres mounted on new vehicle types. Therefore, the Dutch Ministry of Infrastructure and the Environment asked M+P to investigate the statistics of tyre noise label values in OEM tyres in more detail.

Proposal to increase the stringency of tyre noise limits from 1 November 2020.