UN Regulation No. 23: Reversing Lights

Uniform Provisions Concerning the Approval of Reversing and Manoeuvring Lamps for Power-driven Vehicles and their Trailers

Related groups: GRE
UN R23 (2008)
19 Sep 2008 2011-01-05 09:49:42 UTC 00 series of amendments | Supplement 10 00 series of amendments | Supplement 10 | Corrigendum 1 00 series of amendments | Supplement 11 00 series of amendments | Supplement 12 00 series of amendments | Supplement 13 00 series of amendments | Supplement 14
UN R23 | Revision 3 | Amendment 1 (2008)
4 Nov 2008 2011-01-05 09:53:31 UTC 3 1 00 series of amendments | Supplement 15 Revision 3 erratum
UN R23 | Revision 3 | Amendment 2 (2011)
12 Jan 2011 2011-01-27 16:58:06 UTC 3 2 00 series of amendments | Supplement 16
UN R23 | Revision 3 | Amendment 3 (2011)
7 Jul 2011 2011-11-08 07:26:38 UTC 3 3 00 series of amendments | Supplement 17
UN R23 | Revision 3 | Amendment 4 (2012)
6 Dec 2012 2013-01-27 09:20:17 UTC 3 4 00 series of amendments | Supplement 18
UN R23 | Revision 3 | Corrigendum 1 (2010)
28 Jan 2010 2011-01-05 09:52:47 UTC 3 1
UN R23 | Revision 4 (2013)
20 Aug 2013 2015-11-26 16:13:15 UTC 4 00 series of amendments | Supplement 19 00 series of amendments | Supplement 18 00 series of amendments | Supplement 17 00 series of amendments | Supplement 16 00 series of amendments | Supplement 15
UN R23 | Revision 4 | Amendment 1 (2015)
9 Nov 2015 2015-11-26 16:13:49 UTC 4 1 00 series of amendments | Supplement 20 Based upon the adopted proposal: WP.29/2015/17

Proposal to amend the test procedure for reversing lamps and maneuvering lamps equipped with light sources other than filament lamps. Currently, the lamps are required to meet photometric parameters after one minute and 30 minutes of operation. Under normal use, these lamps are operated for no more than six minutes at a time. This proposal would set the second measurement point at 10 minutes rather than 30 minutes. This change would also align the procedure with SAE standard J1889.1.

UN R23 | Revision 4 | Amendment 2 (2017)
5 Dec 2017 2017-12-20 06:36:32 UTC 4 2 00 series of amendments | Supplement 21 Based upon the adopted proposal: WP.29/2017/24

Proposal to

  1. insert provisions for the use of incandescent light sources in the case of light source modules and lamps with non-replaceable light sources,
  2. update the Conformity of Production (CoP) requirements,
  3. reference the compliance requirements for installation contained in Regulations Nos. 48, 53, 72 and 86,
  4. clarify the definition of “type”, with regard to manufacturer, trade names and marks,
  5. introduce editorial improvements to the requirements for markings,
  6. refine the requirements for lamps equipped with several light sources, including in systems fitted with an operating tell-tale that indicates the failure of any one of these light sources, and
  7. removes the requirement to indicate the rated wattage in the marking of lamps equipped with electronic light source control gear and/or non-replaceable light sources and/or light source module(s).
This proposal consolidates UN R23 prior to the restructuring of lighting equipment regulations into three texts (forward lighting, light-signalling, and retro-reflective devices).

UN R23 | Revision 4 | Amendment 3 (2018)
27 Mar 2018 2018-04-30 13:20:37 UTC 4 3 00 series of amendments | Supplement 22 Based upon the adopted proposal: WP.29/2017/77

Proposal to clarify the requirements for light sources in the lighting and light-signalling Regulations listed in Annex 4 to Regulation No. 0 on the International Whole Vehicle Type Approval (IWVTA). This is one of a series of proposals to clarify that lighting devices may only be equipped with light source(s) approved according to UN R37 and/or UN R128 unless otherwise restricted by those regulations.

UN R23 | Revision 4 | Amendment 4 (2019)
8 Nov 2019 2019-12-30 11:42:41 UTC 4 4 01 series of amendments Based upon the adopted proposal: WP.29/2018/96/Rev.1

Revised proposal from GRE (for the March 2019 WP.29 session) to introduce transitional provisions for the phasing out of UN R23 in conjunction with the introduction of the new UN Regulation on Light-Signalling Devices (LSD).

Earlier texts may be available through the UN Official Document System.