The proposal harmonizes the definitions and marking requirements of UN R30 with the new 02 series of amendments to UN R117 and the latest proposal for amendment to UN R117 related to the snow tyre definitions as proposed by the informal group “snow tyre”. This document supercedes GRRF/2011/13.

A proposal to align the French version of UN R54 with the English and Russian texts.

The proposed amendments harmonize the definitions and marking requirements of this
Regulation with the new 02 series of amendments to Regulation No. 117 and the latest
proposal for amendment to Regulation N° 117 related to the snow tyre definitions as
proposed by the informal group “snow tyre”.

Proposal to revise document GRRF/2012/5 concerning C1, C2, and C3 rim measurement, including the proposal of an Appendix 4.

ETRTO answers questions raised by India concerning the strength test of the proposed GTR and its alignment with US regulations.

Tire industry associations’ response to OICA submission (document TYREGTR-12-03) proposing changes to the font for tire identification.

Proposal to allow test tracks to be constructed per the 02 series of amendments to UN R117 or according to the new ISO standard 10844:2011.

Proposal from the European Tyre and Rim Technical Organisation (ETRTO) to align the text of Annex 6 of UN R117 to the ISO Standard 28580.

Proposal from the European Tyre and Rim Technical Organisation (ETRTO) to amend the snow test method for C3 Tyres.

European Tyre and Rim Technical Organisation (ETRTO) proposal to amend the snow test method for C3 tyres in order to prescribe the wider of the possible speed ranges.

Proposal to correct the omission of the rim-diameter code 25 for the calculation of metric-designated tyres (this rim code appears in Annex 5, Table 7 for code designated tyres).

Proposal to align the definition of the temperature correction coefficient “K” in UN Regulation No. 117: 02 series of amendments with ISO 28580. The issue is linked to tire categories: ISO refers only to load index while UN R117: 02 series refers to class C1, C2 and C3 tires.

Proposal to allow the use of test tracks constructed according to the new ISO 10844:2011.

Four paragraphs in the draft gtr (version 24 Feb) contained references to type approval when the text should be neutral concerning type approval or self-certification. The text in these paragraphs was therefore changed.

Presentation considering tyre rolling sound emissions where pavement, tyre and vehicle all play major roles and where traffic flow management and driver behavior are taken into consideration.

ETRTO remarks concering the consolidated version of the proposed 03 series of amendments to UN R51, including OICA remarks on updating references to Annex 9 and concerning the Annex 2 qualification of the vehicle to be tested in each instance.

Editorial corrections proposed by the ETRTO, JATMA and RMA to the draft gtr on tyres.

Presentation arguing for the establishment of minimum wet grip requirements for snow tires.

Presentation on the tire industry position concerning the implementation of new minimum requirements for wet grip on C2 and C3 tyres

Proposal submitted by ETRTO and prepared with the Netherlands, UK, and Poland to amend UNECE Regulation 117 in order to allow the use of test tracks complying to ISO 10844:2011, including transitional provisions.

Proposal to update noise test-track requirements from ISO 19844:1994 to ISO 10844:2011 and incorporates transitional provisions to allow repaving of existing, non-compliant test tracks with the ISO 10844:2011 standards. This supersedes document GRB/2012/9.

Text prepared by the European Commission (EC), France and European Tyre and Rim Technical Organisation (ETRTO) in order to introduce wet grip provisions and testing procedures for tyres of categories C2 and C3.