At the June 2018 WP.29 session, GRRF was reconstituted as the Working Party on Automated Vehicles (GRVA). Tyres, couplings, and other responsibilities not related to vehicle handling and automation have been transferred to other working parties. As a result, the planned GRRF September session will be the first GRVA session.
The Working Party on Braking and Running Gear (GRRF) prepares proposals for consideration by the World Forum/WP.29 concerning primary safety systems such as vehicle braking, steering, and chassis systems that enable drivers to avoid accidents. In this regard, the GRRF supervises various informal working groups developing regulatory provisions related to these primary vehicle handling systems, including not only on motor vehicles but also vehicle trailers.
GRRF regularly gathers more than 100 specialists in active safety systems from government agencies and non-governmental organizations around the world to deliberate on regulatory proposals before the accredited government delegations decide whether to pass the proposals on to the World Forum.
GRRF usually convenes during February and September.
| Report on the GRRF brainstorming session concerning Automatic Emergency Braking and Lane Departure Warning Systems |
| Reference Number: GRRF-65-19 |
| Meeting Sessions: 65th GRRF session (2-6 Feb 2009) and 1st AEBS/LDWS session (25-26 Jun 2009) |
| Document date: 21 Jan 09 |
| Relevant to: UN Regulation No. 131 | Advanced Emergency Braking Systems and UN Regulation No. 130 | Lane Departure Warning Systems |
| Click here to view the full document file |
| Proposal for amendments to Regulation No. 79 |
| Reference Number: GRRF-65-20 |
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Proposed changes with regard to the implementation of technical specifications for Lane Departure Warning Systems (LDWS) |
| Submitted by: Germany |
| Meeting Sessions: 65th GRRF session (2-6 Feb 2009) |
| Document date: 22 Jan 09 |
| Relevant to: UN Regulation No. 79 | Steering Equipment and UN Regulation No. 130 | Lane Departure Warning Systems |
| Click here to view the full document file |
| ETRTO comments on document GRRF/2009/10 |
| Reference Number: GRRF-65-21 |
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ETRTO comments on the draft TPMS regulation concerning the definition of correct tire inflation levels. |
| Submitted by: ETRTO |
| Meeting Sessions: 65th GRRF session (2-6 Feb 2009) |
| Document date: 23 Jan 09 |
| Relevant to: UN Regulation No. 64 | Temporary-use Tires |
| Click here to view the full document file |
| Study on Type approval requirements for the general safety of motors vehicles |
| Reference Number: GRRF-65-22 |
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Presentation on an EU-supported study concerning tire-pressure monitoring systems, low rolling resistance tires, tire wet grip, vehicle safety, CO2 reduction, vehicle noise, and “eco-labeling”. |
| Submitted by: CIDAUT and ETRTO |
| Meeting Sessions: 65th GRRF session (2-6 Feb 2009) |
| Document date: 14 Nov 08 |
| Relevant to: UN Regulation No. 64 | Temporary-use Tires |
| Click here to view the full document file |
| OICA comments to ETRTO submissions concerning TPMS |
| Reference Number: GRRF-65-30 |
| Submitted by: OICA |
| Meeting Sessions: 65th GRRF session (2-6 Feb 2009) |
| Document date: 30 Jan 09 |
| Relevant to: UN Regulation No. 64 | Temporary-use Tires |
| Click here to view the full document file |
| Proposal for a corrigendum to document GRRF/2009/10 |
| Reference Number: GRRF-65-31 |
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OICA-proposed corrections to the draft regulation on tire-pressure monitoring systems. |
| Submitted by: OICA |
| Meeting Sessions: 65th GRRF session (2-6 Feb 2009) |
| Document date: 30 Jan 09 |
| Relevant to: UN Regulation No. 64 | Temporary-use Tires |
| Click here to view the full document file |
| Proposal for amendments to document GRRF/2009/10 |
| Reference Number: GRRF-65-36 |
| Submitted by: UK |
| Meeting Sessions: 65th GRRF session (2-6 Feb 2009) |
| Document date: 03 Feb 09 |
| Relevant to: UN Regulation No. 64 | Temporary-use Tires |
| Click here to view the full document file |
| OICA position on document GRRF/2009/10 |
| Reference Number: GRRF-65-35 |
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OICA position on the draft proposal for a regulation on tire-pressure monitoring systems. |
| Submitted by: OICA |
| Meeting Sessions: 65th GRRF session (2-6 Feb 2009) |
| Document date: 03 Feb 09 |
| Relevant to: UN Regulation No. 64 | Temporary-use Tires |
| Click here to view the full document file |
| Draft Terms of Reference for the informal group on automatic emergency braking/lane departure warning (AEBS/LDWS) |
| Reference Number: GRRF-65-38 |
| Meeting Sessions: 65th GRRF session (2-6 Feb 2009) and 1st AEBS/LDWS session (25-26 Jun 2009) |
| Document date: 09 Feb 09 |
| Relevant to: UN Regulation No. 131 | Advanced Emergency Braking Systems and UN Regulation No. 130 | Lane Departure Warning Systems |
| Click here to view the full document file |
| Proposal for a new draft Regulation on TPMS |
| Reference Number: GRRF-65-40 |
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Text prepared by the GRRF chairman based on document GRRF/2009/10 and pursuant to agreements by GRRF at its 65th session. The unresolved issues are shown in square brackets. |
| Meeting Sessions: 65th GRRF session (2-6 Feb 2009) |
| Document date: 03 Mar 09 |
| Relevant to: UN Regulation No. 64 | Temporary-use Tires |
| Click here to view the full document file |
| Report of the 65th session of the GRRF |
| Reference Number: GRRF-65-65 |
| Meeting Sessions: 65th GRRF session (2-6 Feb 2009) and 1st AEBS/LDWS session (25-26 Jun 2009) |
| Document date: 01 Apr 09 |
| Click here to view the full document file |
| Proposal for draft amendments to Regulation No. 13 |
| Reference Number: GRRF/2009/24 |
| Submitted by: Germany |
| Meeting Sessions: 66th GRRF session (15-17 Sep 2009) and 68th GRRF session (21-23 Sep 2010) |
| Document date: 03 Jul 09 |
| Relevant to: UN Regulation No. 13 | Heavy-Duty Vehicle Braking, WP.29 Regulatory Project | Replacement Brake Discs and Drums, and UN Regulation No. 90 | Replacement Brake Linings, Discs, and Drums |
| Click here to view the full document file |
| Proposal for amendments to Regulation No. 13-H |
| Reference Number: GRRF/2009/25 |
| Submitted by: Germany |
| Meeting Sessions: 66th GRRF session (15-17 Sep 2009) and 68th GRRF session (21-23 Sep 2010) |
| Document date: 03 Jul 09 |
| Relevant to: UN Regulation No. 13-H | Light-Duty Vehicle Braking, UN Regulation No. 90 | Replacement Brake Linings, Discs, and Drums, and WP.29 Regulatory Project | Replacement Brake Discs and Drums |
| Click here to view the full document file |
| Proposal for amendments to Regulation No. 90 |
| Reference Number: GRRF/2009/31 |
| Submitted by: CLEPA |
| Meeting Sessions: 66th GRRF session (15-17 Sep 2009) |
| Document date: 03 Jul 09 |
| Relevant to: WP.29 Regulatory Project | Replacement Brake Discs and Drums and UN Regulation No. 90 | Replacement Brake Linings, Discs, and Drums |
| Click here to view the full document file |
| Proposal for amendments to Regulation No. 90 |
| Reference Number: GRRF/2009/34 |
| Submitted by: OICA and CLEPA |
| Meeting Sessions: 66th GRRF session (15-17 Sep 2009) |
| Document date: 06 Jul 09 |
| Relevant to: WP.29 Regulatory Project | Replacement Brake Discs and Drums and UN Regulation No. 90 | Replacement Brake Linings, Discs, and Drums |
| Click here to view the full document file |
| Draft Proposal for Amendment to Regulation No. 13 |
| Reference Number: GRRF-66-08 |
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CLEPA draft proposal to amend Regulation No. 13 to specify uniform requirements for towing trailers and motor vehicles which may tow more than one trailer (road train combinations). |
| Submitted by: CLEPA |
| Meeting Sessions: 66th GRRF session (15-17 Sep 2009) |
| Document date: 02 Sep 09 |
| Relevant to: UN Regulation No. 13 | Heavy-Duty Vehicle Braking |
| Click here to view the full document file |
| Proposal for draft amendments to Regulation No. 90 |
| Reference Number: GRRF-66-26 |
| Submitted by: ETO |
| Meeting Sessions: 66th GRRF session (15-17 Sep 2009) |
| Document date: 16 Sep 09 |
| Relevant to: UN Regulation No. 90 | Replacement Brake Linings, Discs, and Drums |
| Click here to view the full document file |
| Report of the 66th GRRF session |
| Reference Number: GRRF-66-66 |
| Meeting Sessions: 66th GRRF session (15-17 Sep 2009) |
| Document date: 10 Nov 09 |
| Click here to view the full document file |
| Annotated provisional agenda for the 67th GRRF session |
| Reference Number: GRRF/2010/1 |
| Meeting Sessions: 67th GRRF session (2-5 Feb 2010) |
| Document date: 20 Nov 09 |
| Click here to view the full document file |
| Proposal for amendments to Regulation No. 90 |
| Reference Number: GRRF-2009-23/Rev.1 |
| Submitted by: Germany |
| Meeting Sessions: 67th GRRF session (2-5 Feb 2010) |
| Document date: 24 Nov 09 |
| Relevant to: UN Regulation No. 90 | Replacement Brake Linings, Discs, and Drums and WP.29 Regulatory Project | Replacement Brake Discs and Drums |
| Click here to view the full document file |