13. The expert from Germany presented an amendment proposal that aimed to clarify that only light-signalling devices may incorporate an illuminated manufacturer logo (ECE/TRANS/WP.29/GRE/2025/2, GRE-92-20 and GRE-92-33-Rev.1). The expert from India proposed further modifications (GRE-92-28), while the expert from OICA made an alternative proposal (GRE-92-30). GRE had an in-depth discussion on the topic which focused on two major elements:
14. In the absence of consensus, the expert from Germany decided to withdraw the proposal and to explore a possibility of submitting a new amendment package. GRE thanked Germany for their efforts and agreed to return to this topic in the future. In the interim, GRE reiterated its request to the type approval authorities to refrain from granting type approvals to road illumination devices and retro-reflectors with illuminated manufacturer logos.
15. The expert from France introduced a revised amendment proposal on work lamps (ECE/TRANS/WP.29/GRE/2024/12/Rev.1, GRE-92-11-Rev.2). GRE experts commented on the colour of work lamps, vehicle categories, speed limits/thresholds for activation/deactivation and the footnote that national regulations could prohibit the presence of work lamps. For the latter, some experts pointed out that such a footnote might be seen as contradictory to the principle of mutual recognition of type approvals, being a cornerstone of the 1958 Agreement. Following an in-depth discussion, GRE agreed to postpone the discussion to the next session and invited experts, who made comments, to submit their suggestions to France.
16. The expert from OICA introduced a proposal that aimed to delete the current 2 m width requirement for parking lamps (ECE/TRANS/WP.29/GRE/2025/4 and GRE-92-31). GRE adopted the proposal and requested the secretariat to submit it for consideration and adoption to the November 2025 sessions of WP.29 and the Administrative Committee (AC.1) as draft Supplement 22 to the 06 series, draft Supplement 9 to the 07 series, draft Supplement 7 to the 08 series and draft Supplement 2 to the 09 series of amendments to UN Regulation No. 48. GRE noted that the Vienna Convention (1968) would need to be aligned with the adopted proposal. GRE agreed to contact the Global Forum for Road Traffic Safety (WP.1) ant its secretariat with the aim to identify the proper procedure for amending the Vienna Convention.
17. The expert from OICA introduced draft amendments that permitted the installation of an optional rear mounted manoeuvring lamp (ECE/TRANS/WP.29/GRE/2025/5). GRE adopted the proposal, as amended by GRE-92-10-Rev.1 and requested the secretariat to submit it for consideration and adoption to the November 2025 sessions of WP.29 and AC.1 as part of draft Supplement 2 to the 09 series of amendments to UN Regulation No. 48.
18. The experts from GTB proposed allowing the installation of side-marker lamps combined with retro-reflectors on the lateral foremost position on semi-trailers (ECE/TRANS/WP.29/GRE/2025/6). GRE adopted the proposal and requested the secretariat to submit it for consideration and adoption to the November 2025 sessions of WP.29 and AC.1 as part of draft Supplement 22 to the 06 series, draft Supplement 9 to the 07 series, draft Supplement 7 to the 08 series and draft Supplement 2 to the 09 series of amendments to UN Regulation No. 48.
19. The experts from GTB proposed clarifying the duration of the optical indication of the answer-back signal (ECE/TRANS/WP.29/GRE/2025/7). GRE adopted the proposal and requested the secretariat to submit it for consideration and adoption to the November 2025 sessions of WP.29 and AC.1 as part of draft Supplement 2 to the 09 series of amendments to UN Regulation No. 48.
20. GRE recalled the perceived blueish colour of the white light emitted by the front lighting units, as reported by the expert from France (GRE-89-24), and decided to revert to this topic at the next session, based on the considerations of the GTB Working Group Photometry.
21. GRE noted the status report of the Task Force on Lamps Under Parked Conditions (TF LUPC) (GRE-92-19) and requested GRE experts to provide their comments on the outstanding issues, as highlighted in the report. GRE noted TF LUPC would submit an informal document for consideration at the next session.