UN R123 | Revision 2 (2013)
21 Oct 2013 2013-10-22 10:45:41 UTC 2 Supplement 1 to the 01 series of amendments Corrigendum 1 Supplement 1 to the 01 series of amendments Supplement 2 to the 01 series of amendments Supplement 3 to the 01 series of amendments 01 series of amendments | Supplement 4
UN R123 | Revision 2 | Amendment 1 (2014)
24 Jun 2014 2014-10-21 14:55:31 UTC 2 1 01 series of amendments | Supplement 5 Based upon the adopted proposal: WP.29/2013/95

Proposal to amend the provisions concerning the heat test requirements for conformity of production.

UN R123 | Revision 2 | Amendment 2 (2014)
20 Oct 2014 2014-10-21 14:57:30 UTC 2 2 01 series of amendments | Supplement 6 Based upon the adopted proposal: WP.29/2014/25

Proposal to update the photometric test requirements for type approval of the AFS driving beam and to correct the text by replacing the erroneous use of the term “principal passing beam” with the correct term “class C (basic) passing beam”.

UN R123 | Revision 2 | Amendment 3 (2015)
9 Nov 2015 2015-11-26 14:50:31 UTC 2 3 01 series of amendments | Supplement 7 Based upon the adopted proposal: WP.29/2015/32

Proposal as approved by the GRE to simplify measuring the objective luminous flux of light emitting diode (LED) module(s), correct the ultraviolet (UV) table, and to replace the current variety of test mixtures used to simulate dirt during the testing of lamps with a single uniform mixture. In addition, the proposal would replace the term “beech wood” with the phrase “produced from beech wood” to improve clarity.

UN R123 | Revision 2 | Amendment 4 (2017)
11 Dec 2017 2017-12-14 09:54:05 UTC 2 4 01 series of amendments | Supplement 8 Based upon the adopted proposal: WP.29/2017/41

Proposal to:

  1. reference the compliance requirements for installation contained in Regulations Nos. 48, 53, 72 and 86,
  2. clarify the definition of “type”, with regard to manufacturer, trade names and marks,
  3. introduce editorial improvements to the requirements for markings,
  4. amend the formula for the dirt mixture used in testing to address an error introduced by Supplement 9 to the 01 series of amendments to UN R45,
  5. remove the HV measurement point from the photometric stability requirements for the passing beam (the HV measurement point remains a valid for the driving beam),
  6. correct the omission of certain changes from Emax to Imax from the 01 series of amendments that converted the photometric requirements from illuminance E (lux) to luminous intensities I (cd),
  7. amend Annex 3, Table 2 to allow sub-classes of Class C to lower the cut-off position to allow for adjustment during foggy road conditions,
  8. clarify the test cycle with regard to the stability of photometric performance during the heat test, with particular reference to the movement of the cut-off line, and
  9. harmonize related requirements across Regulations Nos. 19, 98, 112, 113 and 123.

UN R123 | Revision 2 | Amendment 5 (2018)
27 Apr 2018 2018-05-04 09:47:38 UTC 2 5 01 series of amendments | Supplement 9 Based upon the adopted proposal: WP.29/2017/89

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).

UN R123 | Revision 2 | Amendment 6 (2019)
19 Nov 2019 2020-02-18 15:05:49 UTC 2 6 02 series of amendments Based upon the adopted proposal: WP.29/2018/119/Rev.1

Proposal from GRE to introduce transitional provisions for the phasing out of UN R123 in conjunction with the introduction of the new UN Regulation on Road Illumination Devices (RID).

UN R123 | Revision 2 | Amendment 7 (2020)
1 Jul 2020 2021-11-15 13:27:11 UTC 2 7 02 series of amendments | Supplement 1 Based upon the adopted proposal: WP.29/2019/92

Proposal to make explicit reference to UN R149 (Road Illumination Devices) in order to enable the continued acceptance of headlamps compliant with UN Regulations under Canada’s CMVSS 108.

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