Proposal by the WP.29 secretariat to consider amending the Consolidated Resolution to adhere with provisions of the UN Regulations concerning noise limits. Presently, the resolution (which provides a framework and general reference for UN Regulations) permits a 5 db(A) tolerance in measuring noise levels while the UN Regulations 51, 41 and 63 referred to in the resolution permit narrower margins of 1 db(A) or 3 db(A).

Text prepared by the GRB Expert Group on Regulation 51 consolidating the proposed 03 series of amendments to UN Regulation No 51 at their fourth meeting in Brussels on July 4 plus additions from November 8. This version removes references to “acoustic vehicle alerting systems” (AVAS)

Testing and Evaluation of the variant method using the dω/dt form.

Presentation in support of the proposal for additional vehicle categories and sound emission level requirements under UN R51. A “Flat Front Light N1 Vehicle” is defined as:

• GVM ≤ 2.5 ton
• PMR (power to mass ratio) of GVM ≤ 35kW/t
• Engine capacity ≤ 660cc
• d value<1,100mm

Revised mandate as approved by the GRB at its January 2014 session for the informal working group established to finalize revisions to UN Regulation No. 51 and UN Regulation No. 59 with a view towards their alignment with the latest European Union decision concerning noise emissions from vehicles having at least four wheels.

Revised mandate (with changes marked up) as approved by the GRB at its January 2014 session for the informal working group established to finalize revisions to UN Regulation No. 51 and UN Regulation No. 59 with a view towards their alignment with the latest European Union decision concerning noise emissions from vehicles having at least four wheels.

Text prepared by the GRB Expert Group on Regulation 51 and revised during the GRB-59 session consolidating the proposed 03 series of amendments to UN Regulation No 51 developed during the informal group’s fourth meeting in Brussels on July 4 plus additions from November 8. This version removes references to “acoustic vehicle alerting systems” (AVAS)

Proposal originally by OICA (document GRB/2014/2) to update requirements for the noise test track from ISO 19844:1994 (i.e. Annex 8 of this Regulation) to ISO 10844:2011 and to allow for repaving of existing, non-compliant test tracks to meet the ISO 10844:2011 standards as adopted by the Working Party on Noise (GRB) at its 59th session. This change concerns the measurement of vehicle passing noise.

Adopted position (2014/C 82 E/01 on 20 February 2014) by the Council of the European Union (Council Position (EU) No. 3/2014) with a view to the adoption of a regulation of the European Parliament and of the Council on the sound level of motor vehicles and of replacement silencing systems, and amending Directive 2007/46/EC and repealing Directive 70/157/EEC.

Working draft of proposed amendments to UN R51 in order to align its provisions with the latest EU noise requirements pursuant to the second informal working group session of 25 March 2014.

Working draft (pursuant to the third informal working group session of 6 May 2014) of proposed amendments to UN R51, based on the consolidated version of the regulation through the 02 series of amendments, in order to align its provisions with the latest EU noise requirements.

Prepared as an informal document for the 60th Working Party on Noise (GRB) session for discussion by the R51/59 informal working group at its 4th session.

Proposal from the expert group on UN R51 and UN R59 to update the provisions of UN Regulation No. 51.

Proposal from the informal working group on Un Regulations Nos. 51 and 59 for further amendments to the draft 03 series of amendments to UN R51 (document GRB/2014/5).

Presentation on the ISO project to provide a basis for the type approval of vehicles using an indoor pass-by test for noise levels.

Proposal to permit a 74dB(A) limit value for the noise of micro-vans and micro-trucks.

Comparison ECE R51.03 (as adopted by GRB) versus the draft China regulation GB1495 for M1 vehicle noise and proposal for reconciling apparent differences between them.

Table of proposals developed by the Informal Working Group on UN R51 and R59, including input from ISO, for the amendment of the proposal for the 03 series of amendments to UN R51 (i.e., document GRB/2014/5).

Proposal to revise and update UN R51 as revised by the Working Party on Noise at its September 2014 session.

Status of proposed amendments to the working draft text pursuant to the discussions during the fifth R51-R59 informal working group session.

Supplemental document containing all the remaining amendments pending discussion and decision during Session 6 of the Informal Working Group on UN R51 and UN R59.

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.

Correction to the text proposed by the informal working group on the revision of UN Regulations No. 51 and No. 59 to further refine UN R51.

Proposal from the expert group on UN R51 and UN R59 as approved by the GRB to update the provisions of UN Regulation No. 51.