The first task force session confirmed the scope of work, organization structure, and timelines for developing UN R40.03 to transpose Euro 4-level requirements from UN GTR No. 2 into UN Regulation No. 40 and to ensure administrative provisions necessary for mutual recognition and type approval. The Task Force agreed to use IMMA proposal EPPR-73-02 as the technical baseline, identified provisions already aligned with GTR No. 2 and those requiring revision, and established a working method for future discussions. TF-02 is proposed for 24 November 2026 and will examine the main text from paragraph 1 through paragraph 12, including Appendix 2.
The meeting will review progress on the dashboard, finalize the HBM board with lower extremities remaining, prepare the board for the TF-4 workshop, and discuss next steps.
Status report on the development of a Hybrid Regulation on ADS Marker Lamps. The task force has largely completed the document, which specifies lighting performance and installation requirements for ADS Marker Lamps on motor vehicles of categories M, N, O, L6 and L7, and includes both component and vehicle approval procedures. The report identifies items requiring GRE guidance on marking legibility, lamp placement and dimensions, geometric visibility angles, substitution of required light-signalling functions, and electrical switching conditions for ADS Marker Lamps.
Meeting minutes from the GRBP Informal Group RD-ASEP held August 31–September 2026 in Berlin, Germany. The group reviewed the status report to GRBP, an issues list, and draft text for UN R51.04. OICA presented a document on the sensitivity of RD-ASEP results and difficulty of assessing worst case vehicle. The Secretary presented updated terms of reference to GRBP for approval. Experts are requested to submit all documents a minimum of 7 days prior to any IWG meeting date.
The agenda includes a review of Terms of Reference from GRBP 78th Session (GRBP-78-13), report of Data Analysis Task Force, review of issues list, review of draft text, and discussion of UN R51 matters. Dates and locations of 2027 meetings will be determined.
Proposal to establish revised terms of reference for the IWG RD-ASEP covering vehicles of categories M₁, N₁, and L₃. The group shall modify current regulations to mandate revised RD-ASEP, update Annex 9, delete Annex 7 and update relevant paragraphs in the main body and Annex 3 of UN R51, develop limit curves for different riding situations in UN R41-05, consider relevant transitional provisions, and develop coordination between UN R51 and UN R138. The IWG shall be chaired by Germany with OICA as Secretary for M/N categories and IMMA for L category, and shall present a working document for M₁ and N₁ vehicles by February 2028.
Proposal to amend UN Regulation No. 51 on the noise of M and N category vehicles, introducing comprehensive provisions for measuring and limiting sound emissions. The proposal establishes testing methods for vehicles in motion and at rest, defines sound level limits by vehicle category and power characteristics, and introduces Real Driving Additional Sound Emission Provisions (RD-ASEP) for M1 and N1 vehicles to ensure compliance during typical on-road driving conditions representative of urban and suburban traffic. Transitional provisions permit Contracting Parties to continue approving vehicles under preceding series until a specified date.