Revision 4 has been prepared purely as documentation tool. The authentic and legally binding texts are WP.29/2011/115 and WP.29/2010/119. This document incorporates the following changes:

Proposal for the definition of “Exposed conductive part”.

Proposal to extend the scope to all kinds of powertrain systems above a certain working voltage level.

Revision 4 | Amendment 1 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2012/96. This document incorporates the following change:

Text adopted by the GRSP to correct the text for electric vehicles in UN R12, replacing the word “power train” with “occupants” in the referenced rules, ‘registration’ with ‘approval’ in transition provisions in accordance with WP.29 guidelines, and correcting use of the acronym “RESS” to “REESS”.

Revision 4 | Amendment 2 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2013/102. This document incorporates the following change:

Proposal as approved by the GRSP to introduce provisions for coupling systems used in the charging of a Rechargeable Energy Storage System (REESS).

Revision 4 | Amendment 3 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2015/92. This document incorporates the following change:

Pursuant to GRPE work on vehicle propulsion system definitions (VPSD informal group; see document WP.29-165-17), this GRSP proposal would update the definition of the acronym “REESS” to refer to “rechargeable electrical energy storage system” across the passive safety regulations and currently proposed texts that make use of this acronym. (REESS had previously referred generically to “rechargeable energy storage systems”.)

Revision 4 | Amendment 4 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2017/118. This document incorporates the following change:

Proposal to enable approval testing under UN R137 as an alternative to UN R12 in order to avoid redundant testing requirements. The proposal adds references to the steering gear provisions of UN R137 (full width frontal impact) as a compliance alternative in parallel to the current references similarly allowing compliance via provisions in UN R94 (offset deformable barrier frontal impact).

Revision 4 | Amendment 5 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2022/69. This document incorporates the following change:

Proposal from GRSP to align UN R12 with the provisions of GTR 20 on post-crash electrical safety and the administrative provisions of Revision 3 to the 1958 Agreement. The amendments only impact the approval of vehicles with an electric power train operating at high voltage.