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 GRB/2014/6 which was approved during the 60th session of the Working Party on Noise and sent to WP.29 for consideration to adopt.

Draft text for consideration during the first meeting of the informal group of experts, including all changes made pursuant to the 28 October drafting group meeting in Brussels.

Comments on the proposals and guidelines developed for acoustic vehicle alerting systems for quiet road vehicles.

Proposal to restore transitional provisions incorrectly deleted by Supplement 6 to the 02 series of amendments.

Correction to the text of the proposed amendment to introduce a calculated engine speed for manual transmission vehicles and for continuously variable transmission (CVT)/automatic transmission (AT) with locked gear mechanism into UN Regulation No. 41.

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.

Presentation discussing pros and cons of requiring (or not) a minimum sound level for quiet vehicles when stationary.

Correction of typographical errors in the original proposal (document GRB/2015/2): “locked” instead of “rocked”.

Proposal as approved by GRB to clarify certain terms and symbols used in Annex 7 (ASEP) of the regulation.

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.

Consolidated version of UN Regulation No. 59 incorporating the revisions recommended by the Informal Working Group on UN Regulations Nos. 51 and 59 as approved by GRB during its 58th session in order to align the UN R59 with the latest EU decisions.

Proposal as approved by the GRB to introduce a “Deceleration Calculator” (dω/dt) for use in the UN R117 test procedures. This procedure was developed by Russia and validated by an ad hoc group (including NAMI, UTAC, and ETRTO). This proposal also includes clarifications concerning snow tire markings approved by the GRRF during its 78th session.