Text based upon a proposal from CLEPA and OICA as adopted by the Working Party on Brakes and Running Gear (GRRF) at its 74th session to harmonize UN R13-H with the Federal Motor Vehicle Safety Standard (FMVSS) 135 on electric vehicle requirements with regard to the regenerative braking system (RBS).
| Reference Number: | WP.29/2013/57 |
| Meeting Session(s): | 160th WP.29 session (25-28 Jun 2013) |
| Document date: | 11 Apr 13 |
| Document status: | Adopted text published |
| Regarding: | UN R13-H Light Vehicle Braking |
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Proposal to clarify and update transitional provisions, including provisions for extensions of type approvals granted according to the antecedent requirements of the original approval. These amendments also relate to the transfer of brake-related telltale provisions to UN R121.
| Reference Number: | WP.29/2014/46/Rev.1 |
| Meeting Session(s): | 164th WP.29 session (11-14 Nov 2014) |
| Document date: | 25 Aug 14 |
| Document status: | Adopted text published |
| Regarding: | UN R13-H Light Vehicle Braking |
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Proposal to delete provisions for electronic stability and brake-assist systems from UN R13-H as part of their transposition into new stand-alone regulations. This proposal also clarifies the requirements on electromagnetic compatibility via reference to Regulation No. 10.
| Reference Number: | WP.29/2016/50 |
| Meeting Session(s): | 169th WP.29 session (21-24 Jun 2016) |
| Document date: | 05 Apr 16 |
| Document status: | Adopted text published |
| Regarding: | UN R13-H Light Vehicle Braking |
| Adoption Vote | |
| This proposal (WP.29/2016/50) was adopted by the World Forum. Thirty-seven Contracting Parties out of the 48 applying UN R13-H were present for the vote by AC.1. Thirty-seven voted in favor with zero against and zero abstaining. | |
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Proposal to enable activation of the ESC optical symbol in cases of a corrective steering function intervention when the CSF intervention is activated under the control of an ESC system. The aim is to avoid separate requirements for brake-actuated and steering-actuated vehicle stability functions (VSF) that would lead to two optical warnings where only one is necessary. This would enable use of the ESC intervention tell-tale for CSF steering intervention.
| Reference Number: | WP.29/2018/8 |
| Meeting Session(s): | 174th WP.29 session (12-16 Mar 2018) |
| Document date: | 26 Dec 17 |
| Document status: | Adopted text published |
| Regarding: | UN R13-H Light Vehicle Braking |
| Adoption Vote | |
| This proposal (WP.29/2018/8), as amended by para. 89, was adopted by the World Forum. Thirty-six Contracting Parties out of the 49 applying UN R13-H were present for the vote by AC.1. Thirty-six voted in favor with zero against and zero abstaining. | |
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| Reference Number: | WP.29/2018/54 |
| Meeting Session(s): | 175th WP.29 session (18-22 Jun 2018) |
| Document date: | 03 Apr 18 |
| Document status: | Adopted text published |
| Regarding: | UN R13-H Light Vehicle Braking |
| Adoption Vote | |
| This proposal (WP.29/2018/54) was adopted by the World Forum. Thirty-five Contracting Parties out of the 50 applying UN R13-H were present for the vote by AC.1. Thirty-five voted in favor with zero against and zero abstaining. | |
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Proposal to improve the uniformity of requirements for stop lamp illumination with regard to various types of braking systems, including those of electric vehicles.
| Reference Number: | WP.29/2021/13 |
| Meeting Session(s): | 183rd WP.29 session (9-11 Mar 2021) |
| Document date: | 18 Dec 20 |
| Document status: | Depositary Notification This adopted proposal becomes binding on 30 Sep 2021. |
| Regarding: | UN R13-H Light Vehicle Braking |
| Adoption Vote | |
| This proposal (WP.29/2021/13) was adopted by the World Forum. Thirty-seven Contracting Parties out of the 52 applying UN R13-H were present for the vote by AC.1. Thirty-seven voted in favor with zero against and zero abstaining. | |
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Proposal to improve the uniformity of requirements for stop lamp illumination with regard to various types of braking systems, including those of electric vehicles.
| Reference Number: | WP.29/2021/73 |
| Meeting Session(s): | 184th WP.29 session (22-24 Jun 2021) |
| Document date: | 09 Apr 21 |
| Document status: | Adopted by WP.29 |
| Regarding: | UN R13-H Light Vehicle Braking |
| Adoption Vote | |
| This proposal (WP.29/2021/73) was adopted by the World Forum. Thirty-eight Contracting Parties out of the 52 applying UN R13-H were present for the vote by AC.1. Thirty-eight voted in favor with zero against and zero abstaining. | |
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Proposal from GRVA to clarify paragraph 5.2.22.2. with regard to the deceleration thresholds for generating the braking light signal in the case of regenerative braking and/or automatically commanded braking.
| Reference Number: | WP.29/2022/79 |
| Meeting Session(s): | 187th WP.29 session (20-24 Jun 2022) |
| Document date: | 11 Apr 22 |
| Document status: | Adopted by WP.29 |
| Regarding: | UN R13-H Light Vehicle Braking |
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Proposal to ensure the continuity of the American Society for Testing and Materials (ASTM) Method E1337 for the measurement of the Peak Braking Coefficient (PBC) in UN Regulation No. 140, by introducing a reference to the new ASTM Standard Reference Test Tyre F2493.
| Reference Number: | WP.29/2023/9 |
| Meeting Session(s): | 189th WP.29 session (6-9 Mar 2023) |
| Document date: | 20 Dec 22 |
| Document status: | Adopted by WP.29 |
| Regarding: | UN R13-H Light Vehicle Braking |
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Proposal to align UN R13-H with technical advances and the emergence of a new type of braking system that employs stored electrical energy for both the control transmission and the energy transmission.
| Reference Number: | WP.29/2024/147 |
| Meeting Session(s): | 194th WP.29 session (11-15 Nov 2024) |
| Document date: | 02 Sep 24 |
| Document status: | Adopted by WP.29 |
| Regarding: | UN R13-H Light Vehicle Braking |
| Adoption Vote | |
| This proposal (WP.29/2024/147), as amended by para. 105, was adopted by the World Forum. Thirty-seven Contracting Parties out of the 55 applying UN R13-H were present for the vote by AC.1. Thirty-seven voted in favor with zero against and zero abstaining. | |
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| Reference Number: | WP.29-194-08 |
| Meeting Session(s): | 194th WP.29 session (11-15 Nov 2024) |
| Document date: | 08 Oct 24 |
| Document status: | Formal WP.29 review |
| Regarding: | UN R13-H Light Vehicle Braking |
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Proposal to adapt the regulation to allow for the approval of vehicles equipped with both an Automated Driving System and a manual driving mode.
| Reference Number: | WP.29/2024/59 |
| Meeting Session(s): | 193rd WP.29 session (24-28 Jun 2024) |
| Document date: | 12 Apr 24 |
| Document status: | Adopted by WP.29 |
| Regarding: | UN R13-H Light Vehicle Braking |
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Proposal to enable real-time reading of electrical transmission brake values during periodical technical inspections.
| Reference Number: | GRVA/2025/44 |
| Submitted by: | CITA |
| Meeting Session(s): | 23rd GRVA session (23-25 Sep) |
| Document date: | 09 Jul 25 |
| Document status: | Formal GR review |
| Regarding: | UN R13-H Light Vehicle Braking |
| View full document file for more information | |