Revision 2 | Amendment 2 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2016/53. This document incorporates the following change:

Proposal to ensure that coupling balls do not block rear lighting and/or registration plates.

Revision 2 | Amendment 3 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2017/69. This document incorporates the following change:

Proposal for:

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

Revision 2 | Amendment 4 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2019/96. This document incorporates the following change:

Proposal to improve the communication document. The current wording of item 2 in Annex 1 is redundant with item 3 and not aligned with similar texts (UN R58 or R73). The key point of item 2 is to identify the type of device or component approved.

Revision 2 | Amendment 5 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2020/27. This document incorporates the following change:

Proposal to specify that "the motor-vehicle’s user instructions (e.g. owner’s manual, vehicle handbook) shall clearly specify that the removable or repositionable mechanical coupling device shall always be removed or repositioned when it is not in use.” The purpose is to comply with an EU General Safety Regulation provision that prohibits couplings from obscuring rear lighting components or registration plates.

Revision 1 has been prepared purely as documentation tool. The authentic and legally binding texts are . This document incorporates the following change:

Revision 1 | Amendment 1 has been prepared purely as documentation tool. The authentic and legally binding texts are . This document incorporates the following change:

Revision 1 | Amendment 3 has been prepared purely as documentation tool. The authentic and legally binding texts are WP.29/2011/60 and WP.29/2011/60/Corr.1. This document incorporates the following change:

Revision 1 | Amendment 4 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2015/7. This document incorporates the following change:

Proposal as approved by the GRRF to introduce amendments on requirements for movable couplings, increased range of application of remote controls to couplings similar to C50-X and G50-X, possible increase of characteristic values of standard couplings and to include of further requirements on the mounting of couplings.

Revision 1 | Corrigendum 1 has been prepared purely as documentation tool. The authentic and legally binding texts are . This document incorporates the following change:

Revision 2 has been prepared purely as documentation tool. The authentic and legally binding texts are WP.29/2011/60, WP.29/2010/66, WP.29/2015/7, and WP.29/2011/60/Corr.1. This document incorporates the following changes:

Proposal as approved by the GRRF to introduce amendments on requirements for movable couplings, increased range of application of remote controls to couplings similar to C50-X and G50-X, possible increase of characteristic values of standard couplings and to include of further requirements on the mounting of couplings.

Revision 2 | Amendment 1 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2016/5. This document incorporates the following change:

Proposal as prepared by the UN R55 informal group and approved by the GRRF to update UN R55 with respect to:
a) Requirements on remote indication;
b) Availability of information on coupling fixing points for A50X couplings;
c) On lateral strength of drawbars; and
d) a new class definition for fully automatic drawbar couplings.

Revision 1 | Amendment 2 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2010/66. This document incorporates the following change: