Proposal to update the terms of reference for the Informal Working Group on Real Driving-Additional Sound Emission Provisions (RD-ASEP) covering vehicles of categories M₁, N₁, and L₃, with primary objectives to develop amendments from monitoring data, modify current regulations to mandate revised RD-ASEP, update Annex 9, delete Annex 7, and develop consistency between UN R51 and UN R138, chaired by Germany with OICA as Secretary for M/N categories and IMMA for L category, with working documents for motorcycles by January/February 2025, for M₁ and N₁ vehicles by end of 2025 for GRBP discussion in January/February 2026.