GAR | GRBP/2024/8

Regulation:	UN Regulation No. 131 \| Advanced Emergency Braking Systems
Document:	Revision 1 \| Amendment 3
Corresponds to:	01 series of amendments \| Supplement 3 (Entered into force on 24 Sep 2023)
Based on:	Document WP.29/2023/11 Proposal to increase the potential speed reduction during the collision warning phase and clarify the interpretation of “engine start/run cycle”.

Regulation:	UN Regulation No. 131 \| Advanced Emergency Braking Systems
Document:	Revision 2 \| Amendment 1
Corresponds to:	02 series of amendments \| Supplement 1 (Entered into force on 24 Sep 2023)
Based on:	Document WP.29/2023/12 Proposal to align provisions with corresponding provisions of UN R152 and to clarify the interpretation of the provisions on system robustness when applied to heavy duty vehicles.

Regulation:	UN Regulation No. 137 \| Restraint System in Frontal Impact
Document:	Revision 2
Corresponds to:	01 series of amendments \| Supplement 1 (Entered into force on 29 Dec 2018)
Corresponds to:	01 series of amendments \| Supplement 2 (Entered into force on 28 May 2019)
Corresponds to:	01 series of amendments \| Supplement 3 (Entered into force on 3 Jan 2021)
Corresponds to:	02 series of amendments (Entered into force on 9 Jun 2021)

Measurement uncertainties when testing in UN Regulations under the purview of GRBP

Document GRBP/2024/8

24 November 2023

79th GRBP session (6-9 Feb)

Proposal from the Measurement Uncertainties informal group for a Document for Reference providing a general approach on how to handle measurement uncertainties in UN Regulations (initially addressing UN Regulations Nos. 51 and 117).

Status: Formal GR review

79th GRBP session (6-9 Feb)

3. | UN Regulation No. 51 (Noise of M and N categories of vehicles)

5. The expert from the Informal Working Group on Measurement Uncertainties (IWG MU) presented their final report (GRBP-79-02) and a draft document for reference (ECE/TRANS/WP.29/GRBP/2024/8 and GRBP-79-48-Rev.1). During an in-depth discussion, several experts from contracting parties expressed concerns about the formal adoption of the document for reference and its legal status. They pointed out that the document could be misinterpreted as being legally binding and modifying the established sound limits in UN Regulation No. 51. In the absence of consensus, GRBP postponed the discussion to the next session.

7. (d) | UN Regulation No. 117 (Tyre rolling resistance, rolling noise and wet grip)

7. (f) | Tyre abrasion

Reference Number:	A-LCA-SG2-12-02
Submitted by:	CLEPA
Meeting Session(s):	12th A-LCA-SG2 session (25 Jul)
Document date:	25 Jul 24
Regarding:	LCA

Reference Number:	A-LCA-SG2-12-01
Meeting Session(s):	12th A-LCA-SG2 session (25 Jul)
Document date:	25 Jul 24
Regarding:	LCA

Reference Number:	TFCS-31-03
Submitted by:	FIA Foundation
Meeting Session(s):	31st TFCS session (2 Sep)
Document date:	23 Aug 24
Regarding:	UN R155 Cybersecurity \| UN R156 SW Updates

Reference Number:	TFCS-31-01/Rev.1
Meeting Session(s):	31st TFCS session (2 Sep)
Document date:	23 Aug 24
Regarding:	UN R155 Cybersecurity \| UN R156 SW Updates

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