UN R50 | Revision 2 (2009)
18 Feb 2009 2011-01-10 16:53:02 UTC 2 00 series of amendments | Supplement 8 Corrigendum 1 to Revision 1 00 series of amendments | Supplement 9 00 series of amendments | Supplement 10 00 series of amendments | Supplement 11 00 series of amendments | Supplement 12
UN R50 | Revision 2 | Corrigendum 1 (2009)
23 Apr 2009 2011-01-10 16:53:55 UTC 2 1
UN R50 (2009)
20 May 2009 2011-01-10 16:54:56 UTC
UN R50 | Revision 2 | Amendment 1 (2011)
25 Jan 2011 2011-01-27 06:50:12 UTC 2 1 00 series of amendments | Supplement 13
UN R50 | Revision 2 | Amendment 2 (2011)
7 Jul 2011 2011-11-14 08:47:08 UTC 2 2 00 series of amendments | Supplement 14
UN R50 | Revision 2 | Amendment 3 (2011)
12 Dec 2011 2011-12-22 18:57:55 UTC 2 3 00 series of amendments | Supplement 15
UN R50 | Revision 2 | Corrigendum 3 (2012)
4 Jun 2012 2012-06-19 16:13:36 UTC 2 3 Corrigendum 1 to Revision 2
UN R50 | Revision 3 (2013)
20 Aug 2013 2014-09-20 08:19:05 UTC 3 00 series of amendments | Supplement 15 00 series of amendments | Supplement 13 00 series of amendments | Supplement 14 Corrigendum 1 to Revision 2 of the Regulation 00 series of amendments | Supplement 16 Based upon the adopted proposal: WP.29/2012/75

Proposal as adopted by the Working Party on Lighting and Light-Signalling at its 67th session to introduce provisions for the use of light-emitting diode (LED) light sources per the draft UN R127 (documents WP.29/2010/44 and Corr.1) and amending the inward visibility angle of front position lamps.

UN R50 | Revision 3 | Amendment 1 (2015)
9 Nov 2015 2015-11-20 17:27:57 UTC 3 1 00 series of amendments | Supplement 17 Based upon the adopted proposal: WP.29/2015/24

Proposal as approved by the GRE to introduce the possibility of interdependent lamps for dedicated motorcycle lamps. The proposal reflects recent amendments to Regulations Nos. 6 and 7 and meets the visibility angle requirements of Regulations Nos. 50 and 53. The concern is that the rear trunk lid commonly used for four-wheeled vehicles may be adapted for future scooter type motorcycles to secure the storage space for helmet, etc. Current lamp requirements impose design constraints that may hamper the proper development of such storage features.

UN R50 | Revision 3 | Amendment 2 (2016)
28 Oct 2016 2016-11-02 16:12:50 UTC 3 2 00 series of amendments | Supplement 18 Based upon the adopted proposal: WP.29/2016/21

Proposal to enable the approval of sequential activation of light sources of direction indicators lamps for motorcycles.

UN R50 | Revision 2 | Corrigendum 2 (2010)
19 Apr 2010 2016-12-16 15:20:39 UTC 2 2
UN R50 | Revision 3 | Amendment 3 (2017)
6 Dec 2017 2017-12-20 06:00:41 UTC 3 3 00 series of amendments | Supplement 19 Based upon the adopted proposal: WP.29/2017/28

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. reference the compliance requirements for installation contained in Regulations Nos. 48, 53, 72 and 86,
  3. clarify the definition of “type”, with regard to manufacturer, trade names and marks,
  4. introduce editorial improvements to the requirements for markings,and
  5. remove 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 R50 prior to its being superseded by new regulatory texts (forward lighting, light-signalling, and retro-reflective devices) under the Simplification of Lighting Regulations program.

UN R50 | Revision 3 | Amendment 4 (2018)
26 Apr 2018 2018-05-04 07:30:36 UTC 3 4 00 series of amendments | Supplement 20 Based upon the adopted proposals: WP.29/2017/81

Proposal to clarify the provisions for sequential activation of direction indicator lighting, especially concerning the interpretation of the phrase “one continuous line”. The proposal, developed by a special task force, clarifies the type definition and reduces the need for dividing sequential direction indicators into different types. This proposal revises the text to be more technology-neutral, removing specifications on how light sources are activated to focus on the visual performance as sequential lighting. The amendment of sub-paragraph 5.6.(c) of UN R6 clarifies what kind of vertical movement is not allowed in the sequential direction indicators, proposing a new new term “vertical oscillations” instead of the current wording “repeating alternation in the vertical direction”. The meaning is that not more than one change of direction upwards or downwards along the vertical axis is possible. The “continuous signal” is also defined in sub-paragraph 5.6.(c) of Regulation No. 6. The allowed distance between adjacent or tangential distinct parts is limited 50mm (which differs in this case from UN R48 specifications). Transitional provisions have been included.

WP.29/2017/80

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). The document title has been corrected to read “Supplement 20”.

UN R50 | Revision 3 | Amendment 5 (2019)
8 Nov 2019 2020-01-06 12:11:25 UTC 3 5 01 series of amendments Based upon the adopted proposal: WP.29/2018/103/Rev.1

Revised proposal from GRE (for the March 2019 WP.29 session) to introduce transitional provisions for the phasing out of UN R50 in conjunction with the introduction of the new UN Regulation on Light-Signaling Devices (LSD).

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