Modified version of document GRRF/2011/35/Rev.1, pursuant to GRRF session 72 discussions, which aims to clarify reasonable levels of braking performance to be expected in different positions of the ignition key (i.e., off, on, lock, etc.).

Knott TrailerTechnik proposal to update the wording of Annex 14, para. 1.1 to cover “electromechanical or electrohydraulical” brake transmission devices. Primarily in German language.

Notes submitted by the chair of the Working Party on Brakes and Running Gear regarding the enforcement provisions of the supplements to UN R13-H, including mandatory electronic stability controls (ESC) and brake assist systems (BAS).

Russian submission reviewing the supplements to UN R13-H, their transtional provisions and lead times before entry into force.

The extension of UN R90 to include brake drums and discs introduced the concept of a part “identical” to the OE part. Because such parts would have been approved under UN R13/13-H, they were exempted from redundant approval under R90. This proposal would similarly define and exempt brake linings.

Status of documents considered during the February 2012 session of the Working Party on Brakes and Running Gear.

Report of the 72nd (February 2012) session of the Working Party on Brakes and Running Gear.

The National Road Safety Strategy 2011–2020 aims to set out a path for national action on reducing fatal and serious injury crashes on Australian roads. (This document was mentioned verbally, but not submitted to the GRRF session. We provide it here for your convenience.)

Agenda for the GRRF Spetember session without annotations. The annotated agenda will be issued before the session as an addendum to this document.

CLEPA and OICA proposal to harmonize Regulations Nos. 13 and 13-H with the Federal Motor Vehicle Safety Standard FMVSS 135 on electric vehicle requirements with regard to the regenerative braking system (RBS).

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

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.

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).

This document seeks to correct a “copy and paste” mistake concerning a signature requirement made when copying text from Annex 11 into Annex 12, Appendix 4. This proposal would delete the superfluous passages.

Proposed text and supporting report for the establishment of a global technical regulation on light vehicle tires, submitted to the Working Party on Brakes and Running Gear for approval by the Informal Group on the Tyre GTR.

Editorial corrections to Annex 12 of the Regulation, adding the missing paragraph number 10.3.1.1., moving the formula under paragraph 10.4. to its correct placement under paragraph 10.3.1.2., changing the reference to “paragraphs 3. to 10.” to read “3. to 9.” under paragraph 6.1.3., item 7.

Proposal from the Federation of European Manufactures of Friction Materials (FEMFM) to align the requirements for chemically and physically identical brake lining assemblies or drum brake linings.

GRB revisions to the proposal adopted by the Working Party on Brakes and Running Gear (GRRF) at its seventy-second session in order to add specific performance requirements for C2 snow tires.

Submission by the AMEVSC informal group to clarify the requirements in Annex 21 of Regulation No. 13 regarding the use of simulation, specifically in the Appendices 1, 2 and 3 of Annex 21, revising the earlier proposal in document GRRF/2012/02.

Report on the additional deliberations of the AMEVSC informal working group to address comments made at 72nd GRRF session on the proposed use of simulation in Appendices 1, 2 and 3 of Annex 21 of UN R13, Supplement 10 to the 11 series of amendments (document GRRF/2012/2).

Draft supplemental documents to accompany the submission of the proposed
global technical regulation on pneumatic radial tyres for passenger and light truck (commercial) vehicles.

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