UN R91 | Revision 3 (2013)
2 Dec 2013 2013-12-12 16:21:03 UTC 3 00 series of amendments | Supplement 15 Based upon the adopted proposal: WP.29/2013/40

Text as adopted by the Working Party on Lighting and Light Signalling (GRE) at its 68th session to amend the geometric visibility provisions.

00 series of amendments | Supplement 14 Based upon the adopted proposal: WP.29/2012/79

Proposal as adopted by the Working Party on Lighting and Light-Signalling (GRE) at its sixty-seventh session to introduce provisions for the use of light-emitting diode (LED) light sources into UN R91 per the proposed draft Regulation (Documents WP.29/2010/44 and Corr.1).

00 series of amendments | Supplement 13 Based upon the adopted proposal: WP.29/2010/101 00 series of amendments | Supplement 12 Based upon the adopted proposal: WP.29/2010/28 00 series of amendments | Supplement 11
UN R91 | Revision 3 | Corrigendum 1 (2015)
13 Mar 2015 2017-01-09 10:29:11 UTC 3 1
UN R91 | Revision 3 | Amendment 1 (2017)
7 Dec 2017 2017-12-16 12:20:45 UTC 3 1 00 series of amendments | Supplement 16 Based upon the adopted proposal: WP.29/2017/34

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. 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), and
  7. 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.
This proposal consolidates UN R91 prior to its being “frozen” and superseded by the three new comprehensive lighting regulations (forward lighting, light-signalling, and retro-reflective devices) developed under the Simplification of Lighting Regulations program.

UN R91 | Revision 3 | Amendment 2 (2018)
26 Apr 2018 2018-05-07 09:10:09 UTC 3 2 00 series of amendments | Supplement 17 Based upon the adopted proposal: WP.29/2017/84

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) pursuant to GRE-77 discussions.

UN R91 | Revision 3 | Amendment 3 (2019)
19 Nov 2019 2020-03-02 17:56:26 UTC 3 3 01 series of amendments Based upon the adopted proposal: WP.29/2018/113/Rev.1

Revised proposal from GRE (for the March 2019 WP.29 session) to introduce transitional provisions for the phasing out of UN R91 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.