1. The Working Party on Lighting and Light-Signalling (GRE) held its eighty-first session from 15 to 18 April 2019 in Geneva, under the chairmanship of Mr. M. Loccufier (Belgium). Experts from the following countries participated in the work according to Rule 1 (a) of the Rules of Procedure of the World Forum for Harmonization of Vehicle Regulations (WP.29) (TRANS/WP.29/690, ECE/TRANS/WP.29/690/Amends. 1 and 2): Belgium, China, Czechia, Cyprus, Finland, France, Germany, Hungary, India, Italy, Japan, Latvia, Luxembourg, Netherlands, Norway, Poland, Republic of Korea, Serbia, Spain, Switzerland, United Kingdom of Great Britain and Northern Ireland. An expert from the European Commission (EC) participated. Experts from the following non governmental organizations also took part in the session: European Association of Automotive Suppliers (CLEPA), International Automobile Federation (FIA), International Automotive Lighting and Light Signalling Expert Group (GTB), International Electrotechnical Commission (IEC), International Motorcycle Manufacturers Association (IMMA), International Organization of Motor Vehicle Manufacturers (OICA), Society of Automotive Engineers (SAE).

2. GRE considered and adopted the agenda (ECE/TRANS/WP.29/GRE/2019/1), as reproduced in GRE-81-01 together with the informal documents distributed during the session and subject to the addition of a new agenda item 8 (d) “Other business: International events in automotive lighting”. GRE also noted the running order proposed by the Chair (GRE-81-11).

GRE-81-01 | Updated provisional agenda for the 81st (April 2019) GRE session

GRE-81-11 | Running order of the agenda for 81st GRE session

GRE/2019/1 | GRE-81: Annotated provisional agenda for the April 2019 session

3. The list of informal documents is contained in Annex I to this report. The list of GRE informal groups is reproduced in Annex V to the session report.

4. GRE took note of the highlights of the November 2018 and March 2019 sessions of WP.29 and the official document submission deadline of 29 July 2019 for the October 2019 session of GRE (GRE-81-15).

GRE-81-15 | General information and WP.29 highlights for the 81st (April 2019) GRE session

5. GRE had an exchange of views on whether a new UN Global Technical Regulation (UN GTR) could be developed under stage two of the simplification of the lighting and light-signalling UN Regulations (SLR) or as a result of consideration of light-signalling functions of automated/autonomous vehicles (see para. 29 below).

6. The expert from OICA informed GRE that the Informal Working Group on Periodical Technical Inspection (IWG PTI), in one of its documents (PTI-10-03), had indicated the need to ensure the readability of an approval number for the rear fog lamps (UN Regulation No. 38) in an installed state. The Chair requested the secretariat to clarify this issue with IWG PTI.

7. GRE took note that the SLR package of amendment proposals, including the three new simplified UN Regulations on Light-Signalling Devices (LSD), Road Illumination Devices (RID) and Retro-Reflective Devices (RRD), had been adopted in March 2019, instead of November 2018. In view of the expected entry into force of the SLR package in October 2019, the second group of draft amendments that had originally been intended for submission to the June 2019 session of WP.29 had been postponed to November 2019.

8. The expert from the Informal Working Group “Simplification of the Lighting and Light-Signalling Regulations” (IWG SLR) reported on their progress and requested guidance from GRE (GRE-81-19). The expert from Poland commented on the IWG SLR request (GRE-81-22). GRE agreed that:

• The headlamp provisions should continue to be expressed in terms of the luminous intensities equivalent to the illuminance measured on a screen at a distance of 25 m.
• All technologies should be allowed for all SLR functions. Requirements should be common for all technologies; test requirements could be technology-specific.
• Combination of different light source technologies should be possible for all SLR functions.

GRE-81-19 | SLR informal group status report

GRE-81-22 | Poland response to the SLR informal group request for guidance

9. The expert from IWG SLR requested advice on various options of how to use the Unique Identifier (UI) for the new simplified UN Regulations (GRE-81-20). GRE mandated the secretariat to send GRE-81-20 to IWG on Database for the Exchange of Type Approval documentation (DETA) for comments, and requested IWG SLR to consider delegating one of its experts to participate in IWG DETA sessions. Finally, GRE decided to revert to this issue at the next session.

GRE-81-20 | Unique Identifier for the new simplified UN lighting Regulations

10. The expert from IWG SLR presented a proposal for a new 07 series of amendments to UN Regulation No. 48 (ECE/TRANS/WP.29/GRE/2019/3). The expert from Poland commented on the proposal (GRE-81-13 and GRE-81-16). GRE focused its discussion on the aiming diagram in paragraph 6.2.6.1.2. Following an in-depth consideration, GRE agreed on a modified diagram (GRE-81-21 and Annex II) and requested IWG SLR to prepare, on the basis of the new diagram, a revised proposal for consideration at the next session. The experts from Germany and Poland made study reservations. The expert from Germany also pointed out that, at the next session, he would present the outcome of a research project on the issue.

GRE-81-13 | UN R48: Proposal to amend the draft [07] series (document GRE/2019/3) Proposal for changes to the discussion document presenting potential new requirements for headlamp levelling, in particular regarding the vertical inclination in relation to the dipped-beam headlamp mounting height.

GRE-81-16 | UN R48: Box justification for document GRE-81-13 Supporting data justifying the headlamp aiming and cut-off points diagrammed in the proposal for a new series of amendments (GRE-81-13).

GRE-81-21 | Updated diagram in document GRE/2019/3 Updated headlamp aiming diagram in the proposal for a new 07 series of amendments to UN R48 as agreed during the April 2019 GRE session.

GRE/2019/3 | UN R48: Proposal for a new [07] series of amendments Discussion document presenting potential new requirements for headlamp levelling, in particular regarding the vertical inclination in relation to the dipped-beam headlamp mounting height.

11. The experts from France and Germany proposed introducing conditions for the use of logos inside the illuminating surface of a signalling lamp in the UN LSD Regulation and UN Regulation No. 48 (ECE/TRANS/WP.29/GRE/2019/6). Various experts commented and posed questions on the proposal. GRE noted that a clear definition of “logo” would be needed and that technological neutrality should be ensured. The expert from EC was of the view that the underlying issue did not have bearing on road safety and, thus, should not be discussed by GRE. The proponents agreed to revise the proposal in accordance with the comments received. The expert of OICA offered its assistance.

GRE/2019/6 | LSD and UN R48.06: Proposal for supplements Proposal to allow under specified conditions the use of logos inside the illuminating surface of a signalling lamp.

12. The expert from Germany presented a draft Supplement to the UN LSD Regulation which introduced requirements for testing the sun load impact (ECE/TRANS/WP.29/GRE/2019/7). The proposal received comments from the experts of France, Japan (GRE-81-17), Netherlands, United Kingdom of Great Britain and Northern Ireland, CLEPA, OICA and SAE. The expert from IMMA made a study reservation. The Chair invited the expert from Germany to update the proposal, based on the comments received, for consideration at the next session.

GRE-81-17 | LSD (UN R148): Japan comments on document GRE/2019/7 Comments on the proposal to introduce requirements for testing sun-load impact.

GRE/2019/7 | LSD: Proposal for a Supplement Proposal to introduce requirements for testing the sun load impact to avoid delays in the perception of light signals under certain sunlight conditions.

13. The expert of GTB presented an amendment proposal to the Consolidated Resolution on the common specification of light source categories (R.E.5) that introduced new light emitting diode (LED) substitute light source categories C5W/LEDK and R5W/LED (ECE/TRANS/WP.29/GRE/2019/9 and GRE-81-03). The expert of GTB also tabled another proposal that introduced new LED substitute light source categories W5W/LEDK and WY5W/LED (ECE/TRANS/WP.29/GRE/2019/10 and GRE-81-04). The expert from IEC highlighted the interlock solutions for the new categories (GRE-81-07). GRE adopted both proposals and requested the secretariat to submit them to WP.29 and the Administrative Committee (AC.1) for consideration at their November 2019 sessions as draft amendment 4 to R.E.5.

GRE-81-03 | Substitute light sources: equivalence reports for C5W and R5W Presentation in support of the proposa to introduce new light emitting diode (LED) substitute light source categories C5W/LEDK and R5W/LED (document GRE/2019/9).

GRE-81-04 | Substitute light sources: equivalence reports for W5W and WY5W Presentation in support of the proposal to introduce new LED substitute light source categories W5W/LEDK and WY5W/LED (document GRE/2019/10).

GRE-81-07 | Substitute – interlock solutions: Fit & function / Fit & non-function by the “Electrical key-system” Illustration of interlock solutions for the categories C5W/LEDK, W5W/LEDK and WY5W/LED proposed in the documents GRE/2019/9 and GRE/2019/10.

GRE/2019/10 | RE5: Proposal for amendment [7] to the Consolidated Resolution on the common specification of light source categories Proposal to introduce new LED substitute light source categories W5W/LEDK and WY5W/LED.

GRE/2019/9 | RE5: Proposal for amendment [6] to the Consolidated Resolution on the common specification of light source categories Proposal to introduce new light emitting diode (LED) substitute light source categories C5W/LEDK and R5W/LED.

14. The expert from the Task Force on Substitutes and Retrofits (TF SR) proposed editorial corrections and further modifications to ECE/TRANS/WP.29/GRE/2018/40, which had been adopted at the previous session of GRE and in which the information for the 24V version was missing (GRE-81-06). GRE adopted the proposal, as contained in Annex III, and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their November 2019 sessions as part of the draft amendment to R.E.5 mentioned in paragraph 13 above.

GRE-81-06 | RE5: Modifications to ECE/TRANS/WP.29/GRE/2018/40 Proposal from the Task Force on Substitutes and Retrofits (TF SR) to modify GRE/2018/40, where the information for the 24V version was missing, and to implement editorial corrections. GRE/2018/40 was adopted by GRE during its 80th session as part of a package which also includes amendments to UN Regulation No. 128.

15. The expert from TF SR presented a progress report of the Task Force (GRE-81-14-Rev.1). GRE noted that the next step (1B) of TF SR would be preparing documents on LED substitutes for road illumination for the next session of GRE. A time schedule for step 2 would be decided upon at the next session of GRE.

GRE-81-14/Rev.1 | LED Substitute Light Sources Task Force (TFSR) status report

16. The expert from Czechia proposed to clarify the requirements for headlamps and DRL (ECE/TRANS/WP.29/GRE/2019/5). GRE adopted the proposals and requested the secretariat to submit them to WP.29 and AC.1 for consideration at their November 2019 sessions as draft Supplement 13 to the 06 series of amendments to UN Regulation No. 48.

GRE/2019/5 | UN R48: Proposal for a Supplement to the 06 series of amendments Proposal to correct and clarify the requirements for daytime running lamps (DRL) in conjunction with rear position lamps.

17. The expert from Germany proposed to allow (a) the manual switch-off of all lighting devices in vehicles used by special forces and (b) the activation of hazard warning lights when opening a door in vehicles not equipped with a door assistance and warning system (ECE/TRANS/WP.29/GRE/2019/8). The experts from France, Japan and United Kingdom of Great Britain and Northern Ireland were not in a position to support the derogation (a) and indicated that such exceptions should be done in the national or regional legislation, rather than in a UN Regulation. For proposal (b), the expert from EC pointed out that it constitutes a new requirement and, thus, should be introduced by a new series of amendments. The experts from Czechia, Netherlands, United Kingdom of Great Britain and Northern Ireland and OICA were of the view that proposal (b) goes beyond the scope of GRE and should be addressed by the Working Party on General Safety Provisions (GRSG). The Chair requested the secretariat to bring the issue to the attention of GRSG.

GRE/2019/8 | UN R48: Proposal for a Supplement to the 06 series of amendments Proposal to introduce provisions:<ol class="alpha"><li>For vehicles intended for use by the armed services and forces responsible for maintaining public order: the manual switching off of all lighting devices in all circumstances;</li><li>In the absence of a “vehicle door assistance and warning system”: the mandatory application of the hazard warning lights to reduce the safety risks in the case a door is opened to the traffic side.</li></ol>

18. The expert from the GRE special interest group introduced a consolidated proposal for a new 07 series of amendments (ECE/TRANS/WP.29/GRE/2019/11, GRE-81-09 and GRE-81-10). The expert from France proposed an additional modification (ECE/TRANS/WP.29/GRE/2019/4). Following in-depth discussion, GRE agreed that, given the complexity of the proposal, further work should be pursued by means of a task force. The experts from the Netherlands and Finland volunteered to act as Chair and Co-Chair, respectively, while the expert from OICA agreed to become secretary. GRE noted that the next session of the special interest group/task force would be convened on 16 and 17 May 2019 at the OICA office in Paris (GRE-81-24). The expert from SAE invited the task force to also address the earlier proposal of SAE on side retro-reflectors (GRE-80-17). Finally, GRE agreed to continue consideration of proposals for a new 07 series of amendments at the next session.

GRE-80-17 | UN R48: Proposal to amend document GRE/2018/44 (Proposal for a new 07 series of amendments) Proposal to require red retro-reflectors to identify the rear sides of a vehicle (presently not required for vehicles less than six meters in length).

GRE-81-09 | UN R48: Supporting information on document GRE/2019/11 (SIG proposal)

GRE-81-10 | UN R48: Special Interest Group revised proposal for a new series of amendments Updated proposal, superseding document GRE/2019/11, to:<ol class="alpha"><li>update requirements for headlamps and daytime running lamps related to headlamp switching. In particular, the proposed 07 series of amendments aims to clarify electrical connection requirements, conditions for manual switching OFF of headlamps, and new definitions for switching ON/OFF and for activating/deactivating lamps;</li><li>introduce technical parameters for speed and vehicle distance, allowing reduced intensity at speeds lower than 20 km/h, in order to encourage reduced glaring effects from rear signaling lamps;</li><li>introduce references to the three new simplified lighting Regulations (Light-Signalling Devices (LSD), Road Illumination Devices (RID) and Retro-Reflective Devices (RRD)).</li></ol>The proposal was prepared by a special interest group of GRE experts on the new 07 series of amendments to UN Regulation No. 48. This revised proposal includes:<ul><li>Paragraph 5.26 contains the two proposed alternatives from France</li><li>Paragraph 5.26.2. contains the proposals from Czech Republic and GTB</li><li>Paragraph 6.2.7.5.1. contains 3 alternatives for subparagraph (d)</li><li>Paragraph 6.19.7.6. (new) contains the proposal from OICA because of the replacement of “may” by “shall”</li><li>Paragraph 12.6 contains the OICA proposed changes of the Transitional Provisions, linked to ESS introduction.</li></ul>

GRE-81-24 | UN R48-07: Invitation to the fifth session of the Special Interest Group

GRE/2019/11 | UN R48: Proposal for a new series of amendments Proposal to:<ol class="alpha"><li>update requirements for headlamps and daytime running lamps related to headlamp switching. In particular, the proposed 07 series of amendments aims to clarify electrical connection requirements, conditions for manual switching OFF of headlamps, and new definitions for switching ON/OFF and for activating/deactivating lamps;</li><li>introduce technical parameters for speed and vehicle distance, allowing reduced intensity at speeds lower than 20 km/h, in order to encourage reduced glaring effects from rear signaling lamps;</li><li>introduce references to the three new simplified lighting Regulations (Light-Signalling Devices (LSD), Road Illumination Devices (RID) and Retro-Reflective Devices (RRD)).</li></ol>The proposal was prepared by a special interest group of GRE experts on the new 07 series of amendments to UN Regulation No. 48.

GRE/2019/4 | UN R48: Proposal for a Supplement to the new 07 series of amendments Proposal to clarify the requirements of paragraph 5.26. for the variable luminous intensity of four different light signaling functions: rear direction indicator lamps of category 2b, rear position lamps of category R2, stop lamps of category S2,and rear fog lamps of category F2. The intent is to ensure that all the lamps maintain their proportionate relationships throughout the transitions in luminosity. vary all together proportionally.

19. The expert from IMMA recalled the draft 03 series of amendments to UN Regulation No. 53 adopted at the previous session of GRE (ECE/TRANS/WP.29/GRE/2018/50 and ECE/TRANS/WP.29/GRE/80, para. 28) and proposed to restore the original automatic headlamp requirement for vehicles not equipped with daytime running lamps (DRL) (ECE/TRANS/WP.29/GRE/2019/12). GRE adopted the proposal and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their November 2019 sessions as part of the draft 03 series of amendments to UN Regulation No. 53. The expert from EC was not in a position to support the proposal.

GRE/2018/50 | DRL: Proposal for the 03 series of amendments to UN Regulation No. 53 and proposal for amendments to the draft new UN Regulation on Light-Signalling Devices (LSD) Proposal from the Special Interest Group on L-category vehicle daytime running lamps to introduce requirements for automatic switching from DRL to headlamp(s) if the maximum luminous intensity of DRL is above 700 cd.

GRE/2019/12 | UN R53: Proposal for an amendment to the draft 03 series of amendments Proposal to restore the original automatic headlamp ON (AHO) requirement for vehicles not equipped with daytime running lamps (DRL). The 03 series of amendments (focusing on DRL) as approved by GRE during its October 2018 session (document GRE/2018/50) changes provisions for automatic headlamps as adopted for motorcycles in 2004 (see document GRE/2003/12/Rev.1). While appropriate for vehicles equipped with DRL, the changes would reduce safety for vehicles not equipped with DRL.

20. The expert from India requested a postponement of consideration of his proposal to make the fitment of front position lamps optional, due to the introduction of automatic headlamp switching and DRL provisions (GRE-81-18).

GRE-81-18 | UN R53: Clarification of document GRE/2018/47 Clarification of the proposal to render optional the fitment of front position lamps where the motorcycle is fitted with qualified automatic headlamp switching or daytime running lamps.

21. The expert from GTB proposed editorial corrections to UN Regulation No. 65 (GRE-81-05). The expert from Cyprus commented on the proposal. The Chair invited GTB to prepare an official document for consideration at the next session.

GRE-81-05 | UN R65: Proposal for corrections Proposal for corrections to UN Regulation 65 (Special Warning Lamps) based upon Supplement 10 to the original Regulation. A recent review of the content of UN Regulation 65 has revealed some long-standing editorial errors that do not affect the technical requirements but do create confusion.

22. The expert from the Netherlands tabled a revised proposal that requires mandatory installation of direction indicators on mopeds (ECE/TRANS/WP.29/GRE/2019/2 and GRE-81-02-Rev.1). GRE adopted the proposal, as laid down in Annex IV, and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their November 2019 sessions as draft 02 series of amendments to UN Regulation No. 74.

GRE-81-02/Rev.1 | UN R74: Proposal for the 02 series of amendments Proposal from the Netherlands, with support from Finland, Italy, France and Germany, to require installation of direction indicators on mopeds.

GRE/2019/2 | UN R74: Proposal for the 02 series of amendments Proposal to require installation of direction indicators on mopeds.

23. GRE noted that the Global Forum for Road Traffic Safety (WP.1), at its recent session in March 2019, had continued discussing ECE/TRANS/WP.1/2017/1/Rev.1 (France, Italy and Laser Europe) as well as Informal document No. 8 submitted by the Government of Germany. After discussion, WP.1 decided to resume, at the next session, by first addressing points (i), (j), (r), (t), 34, 35 and 36 in ECE/TRANS/WP.1/2017/1/Rev.1 while taking into account Informal document No. 8. GRE invited its experts to review these documents.

24. GRE was briefed on the recent developments in the field of road safety at the United Nations.

25. GRE reviewed a candidate UN Regulation No. 27 (Advance warning triangle) that was proposed to be added in Annex 4 to UN Regulation No. 0 under Phase 2 of the International Whole Vehicle Type Approval (IWVTA) (WP.29-176-21) and decided that this was not necessary. At the same time, GRE highlighted the need to include in IWVTA, with high priority, the three new simplified UN Regulations on LSD, RID and RRD.

WP.29-176-21 | Candidate items for technical regulations applicable to IWVTA Phase 2 (2018 – 2022)

26. No information was reported under this agenda item.

27. GRE noted that Mr. G. Draper (President, GTB) would no longer attend GRE sessions on a regular basis, due to a redistribution of tasks in GTB. GRE thanked him for his long participation and extensive contributions and wished him success in the future.

28. Due to lack of time, GRE decided to consider GRE-80-06 at the next session.

GRE-80-06 | Lighting regulations; Obsolete transitional provisions

29. GRE was briefed on the progress of the task force on the signalling requirements for automated/autonomous vehicles (TF AVSR) (GRE-81-08-Rev.1 and GRE-81-12-Rev.1). GRE noted that TF had not been able to reply to the main question on whether or not there should be a safety requirement for automated/autonomous vehicles to provide specific signals. GRE was not in a position to reach a consensus on this question either. While some experts felt that such signals were necessary for safety reasons, some others held a different view. The expert of SAE pointed out that his organization was developing lamps for automated/autonomous vehicles. GRE decided to request WP.29 for guidance on this matter. The Chair invited GRE experts to provide him with arguments for the request to WP.29 at its session in June 2019.

GRE-81-08/Rev.1 | Outcome of the discussion on AV signalling requirements

GRE-81-12/Rev.1 | AVSR Task Force status report

30. The expert from GTB presented their activity report and mentioned several ongoing studies which were scheduled to be completed by July 2019 (GRE-81-23). GRE looked forward to receiving the results of the studies.

GRE-81-23 | GTB Activity Report

31. GRE agreed to keep the same structure of the provisional agenda.