GAR

Proposal for:

An amendment for the separation of the procedures to verify towable mass from the procedure of setting and certifying performance values;
An amendment that adds procedures to verify towable mass for vehicle combinations that have hitherto not been accounted for in the Regulation;
Amendments that adds integrated fixing points for secondary couplings;
An amendment that clarifies the procedure to identify worst cases for certification testing;
Amendments that removes typos in the current Regulation.

Please note that, under paragraph 3.4 regarding “Combination 4”, the Clevis coupling formula should read “D_C” rather than “D” as shown.

Reference Number:	WP.29/2017/69
Meeting Session(s):	172nd WP.29 session (20-23 Jun 2017)
Document date:	06 Apr 17
Document status:	Adopted text published
Regarding:	UN R55 Mechanical Couplings
Adoption Vote
This proposal (WP.29/2017/69) was adopted by the World Forum. Thirty-four Contracting Parties out of the 44 applying UN R55 were present for the vote by AC.1. Thirty-four voted in favor with zero against and zero abstaining.
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Download from UNECE:

01 series of amendments | Supplement 7

01 series of amendments

Supplement 3

Supplement 2

Supplement 1

Supplement 4

Corrigendum 1

Supplement 5

Supplement 6

Supplement 7

Supplement 8

Corrigendum 1

Supplement 9

Supplement 10

Corrigendum 2

Supplement 1

Supplement 2

Corrigendum 1

Supplement 1

Entry into force as of: 10 Feb 2018

01 series of amendments | Supplement 7 was established by the adoption of the following proposals

WP.29/2017/69 Proposal for Supplement 7 to the 01 series of amendments to Regulation No. 55

This change has also been reproduced in Revision 2 | Amendment 3 and Revision 3.

Reference Number:	TFGP-04-01
Meeting Session(s):	4th TFGP session (9 Sep)
Document date:	25 Aug 25
Regarding:	UN R48 Installation of Lighting \| UN R149 Road Illumination Devices (RID)

Reference Number:	IWVTA-49-02
Meeting Session(s):	49th IWVTA session (6 Nov)
Document date:	22 Aug 25
Regarding:	UN R0 International Whole Vehicle Type Approval

Reference Number:	A-LCA-SG2-23-01
Meeting Session(s):	23rd A-LCA-SG2 session (28 Aug)
Document date:	22 Aug 25
Regarding:	Automotive Life Cycle Assessment

Reference Number:	TFCS-35-01
Meeting Session(s):	35th TFCS session (11 Sep)
Document date:	22 Aug 25
Regarding:	UN R155 Cybersecurity \| UN R156 SW Updates \| Cyber Security Guidelines \| Software Updates Guidelines