UN R13 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 . This document incorporates the following change:

Revision 2 | Amendment 3 has been prepared purely as documentation tool. The authentic and legally binding texts are . This document incorporates the following change:

Revision 2 | Amendment 4 has been prepared purely as documentation tool. The authentic and legally binding texts are . This document incorporates the following change:

Revision 2 | Amendment 6 has been prepared purely as documentation tool. The authentic and legally binding texts are . This document incorporates the following change:

Revision 3 has been prepared purely as documentation tool. The authentic and legally binding texts are . This document incorporates the following changes:

Revision 4 has been prepared purely as documentation tool. The authentic and legally binding texts are . This document incorporates the following changes:

Revision 5 has been prepared purely as documentation tool. The authentic and legally binding texts are . This document incorporates the following changes:

Revision 6 has been prepared purely as documentation tool. The authentic and legally binding texts are . This document incorporates the following changes:

Revision 6 | Amendment 1 has been prepared purely as documentation tool. The authentic and legally binding texts are . This document incorporates the following change:

Revision 6 | Amendment 3 has been prepared purely as documentation tool. The authentic and legally binding texts are . This document incorporates the following change:

Revision 6 | Amendment 4 has been prepared purely as documentation tool. The authentic and legally binding texts are . This document incorporates the following change:

Revision 7 has been prepared purely as documentation tool. The authentic and legally binding texts are . This document incorporates the following changes:

Revision 7 | Amendment 1 has been prepared purely as documentation tool. The authentic and legally binding texts are . This document incorporates the following change:

Revision 7 | Amendment 2 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2011/4. This document incorporates the following change:

Revision 7 | Amendment 3 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2011/58. This document incorporates the following change:

Integrated into the regulation via Amendment 3 to Revision 7.

Revision 7 | Amendment 4 has been prepared purely as documentation tool. The authentic and legally binding texts are WP.29/2011/94 and WP.29/2012/3. This document incorporates the following change:

Integrated into the regulation via Amendment 4 to Revision 7.

Integrated into the regulation via Amendment 4 to Revision 7.

Revision 8 has been prepared purely as documentation tool. The authentic and legally binding texts are WP.29/2011/4, WP.29/2011/58, WP.29/2014/3, WP.29/2011/94, and WP.29/2012/3. This document incorporates the following changes:

Integrated into the regulation via Amendment 3 to Revision 7.

Integrated into the regulation via Amendment 4 to Revision 7.

Integrated into the regulation via Amendment 4 to Revision 7.

This supplement would introduce provisions for fully automatic coupling systems and clarify references in the regulation to Regulation No. 10 on electromagnetic compatibility. This proposal combines two distinct proposals (document GRRF/2013/12 as amended by Annex II to the GRRF 75th session report and document GRRF/2013/13 not amended) approved by the GRRF at its September 2013 session.

Revision 8 | Amendment 1 has been prepared purely as documentation tool. The authentic and legally binding text is GRVA-13-05. This document incorporates the following change:

Proposal to introduce provisions for the approval of electromechanical braking systems.

Revision 8 | Amendment 10 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2022/77. This document incorporates the following change:

Proposal from GRVA to resolve problems with installation of stronger spring brake actuators in trailers to realize higher deceleration in the case of emergency braking caused by a cut of the supply line between towing vehicle and trailer.

Revision 8 | Amendment 11 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2022/137. This document incorporates the following change:

Proposal to clarify provisions regarding the actuation of the parking brake warning device to cover the case of electric control transmission systems where there may be a transition between parked (applied) and un-parked (released) braking states.

Revision 8 | Amendment 2 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2014/45/Rev.1. This document incorporates the following change:

Completes transition of ESC symbol to UN R121 and clarifies the transitional provisions.

Revision 8 | Amendment 3 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2015/6. This document incorporates the following change:

Proposal as approved by the GRRF to remove all references to Annex 10 from Annex 13 by transferring the provisions concerning vehicles with and without anti-lock braking systems to Annex 10 of UN R13.

Revision 8 | Amendment 4 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2016/49. This document incorporates the following change:

Proposal for corrections to the text and equations.

Revision 8 | Amendment 5 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2018/9. This document incorporates the following change:

Proposal to

1. delete redundant provisions (paragraphs 2.2. and 2.2.1.) in favor of paragraph 5.2.2.13. which requires all O4 trailers to be equipped with Anti-lock Braking Systems (ABS) of Category A.
2. clarify exemptions from electronic stability control requirements, and
3. enable the verification of sufficient movement of the balancer without having to take measurements underneath the trailer.

Revision 8 | Amendment 6 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2018/53. This document incorporates the following change:

The 02 series of amendments to UN R79 introduced requirements for RCP systems. An RCP system requires the engagement of an EPB (electronic parking brake) once the manoeuvre has finished and the ignition is switched off. This proposal would allow the release or disconnection of the EPB by a remote control system (approved to R79) so the RCP can subsequently drive the vehicle out of a parking spot.

Revision 8 | Amendment 7 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2020/119. This document incorporates the following change:

GRVA proposal to clarify the test method for the evaluation of performance of energy sources and energy storage devices under Annex 7. In particular, the proposal clarifies that the measurement is made on the ninth brake application.

Revision 8 | Amendment 8 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2021/12. This document incorporates the following change:

Proposal to introduce provisions for approving single vehicles involved in modular vehicle combinations, e.g. towing trailers, “road trains” and requirements for endurance braking systems for vehicles equipped with an electric regenerative endurance braking system.

Revision 8 | Amendment 9 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2022/12. This document incorporates the following change:

Revision 9 | Amendment 1 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2022/78. This document incorporates the following change:

Proposal to resolve problems with installation of stronger spring brake actuators in trailers to realize higher deceleration in the case of emergency braking caused by a cut of the supply line between towing vehicle and trailer.

Revision 9 | Amendment 2 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2022/138. This document incorporates the following change: