12. The experts from GTB introduced a proposal that aimed to clarify the voltage requirements for LEDs (ECE/TRANS/WP.29/GRE/2025/10). GRE adopted the proposal and requested the secretariat to submit it for consideration and adoption to the March 2026 sessions of WP.29 and the Administrative Committee (AC.1) as draft Supplement 23 to the 06 series, draft Supplement 10 to the 07 series, draft Supplement 8 to the 08 series and draft Supplement 3 to the 09 series of amendments to UN Regulation No. 48.
13. The expert from OICA proposed clarifying the requirements for the activation of direction-indicator lamps, to ensure compatibility with driver control assistance systems as permitted under UN Regulation No. 171 (ECE/TRANS/WP.29/GRE/2025/19, GRE-93-10-Rev.1). GRE adopted the proposal, as amended by GRE-93-10-Rev.1, and requested the secretariat to submit it for consideration and adoption to the March 2026 sessions of WP.29 and AC.1 as part of draft Supplement 23 to the 06 series, of draft Supplement 10 to the 07 series, of draft Supplement 8 to the 08 series and of draft Supplement 3 to the 09 series of amendments to UN Regulation No. 48.
14. Based on new documents from OICA (ECE/TRANS/WP.29/GRE/2025/18, ECE/TRANS/WP.29/GRE/2025/20, GRE-93-22, GRE-93-27-Rev.2) and Germany (ECE/TRANS/WP.29/GRE/2025/21, GRE-93-26), GRE reverted to the prohibition of approving a road illumination device with an illuminated manufacturer logo. These proposals were accompanied by draft amendments to UN Regulation No. 149. The expert from OICA held the view that this new restriction could only be introduced by means of a new series of amendments with transitional provisions, while the experts from Germany, Netherlands (Kingdom of the) and EC believed that was only a clarification which could be made by a Supplement without transitional provisions. In spite of extensive discussions, GRE did not reach a conclusion and agreed to continue consideration at the next session.
15. The expert from France presented a revised proposal on optional work lamps (ECE/TRANS/WP.29/GRE/2024/12/Rev.2, GRE-93-28-Rev.1). He clarified that vehicle categories M1 and N1 were not included in the proposal and that national regulations remained applicable. The expert from OICA provided arguments why, in his view, this proposal should be made in the form of a new series of amendments with transitional provisions. He also pointed out a link to the “prohibited if not allowed” discussion (see para. 8 above). The secretariat recalled that a supplement could also be accompanied with a transitional provision.
16. The experts from Japan, while not in a position to comment on the provisions for unadopted categories, reserved their position regarding this proposal and noted the following two points of concern:
18. GRE noted no new developments on the issue of the perceived blueish colour of the white light emitted by front lighting units, as reported by the expert from France (GRE-89-24).
19. The experts of the Task Force on Lamps Under Parked Conditions (TF LUPC) reported on their activities (GRE-93-23), introduced their proposals for a new series of amendments (GRE-93-25) and invited GRE experts to provide comments by mid-January 2026. The expert from EC made reservations about the light colours and the envisaged test lamp mode, seeing no justification for this mode, while some experts supported the test mode. GRE invited TF LUPC to prepare a revised proposal for consideration at the next session.
20. The expert from the Republic of Korea proposed clarifying the provisions on the additional category 5 devices of direction indicators (GRE-93-07). GRE adopted the proposal and requested the secretariat to submit it for consideration and adoption to the March 2026 sessions of WP.29 and AC.1 as part of draft Supplement 23 to the 06 series, of draft Supplement 10 to the 07 series, of draft Supplement 8 to the 08 series and of draft Supplement 3 to the 09 series of amendments to UN Regulation No. 48.