3. The expert from the Informal Working Group on Real Driving – Additional Sound Emission Provisions (IWG RD-ASEP) introduced draft amendments that clarified interpretation issues in the 05 series of amendments to UN Regulation No. 41, such as the number of test points, riding modes and speed tolerances (GRBP-80-08). GRBP noted that IWG RD – ASEP solicited comments on the draft amendments with a view to updating the proposal and submitting it as a working document to the next session.

4. The expert from the Informal Working Group on Real Driving – Additional Sound Emission Provisions (IWG RD – ASEP) proposed clarifying the application of the ASEP testing conditions in Annex 7 (ECE/TRANS/WP.29/GRBP/2025/4). GRBP adopted this proposal, as amended GRBP-81-03, and requested the secretariat to submit it for consideration and vote at the June 2025 sessions of WP.29 and AC.1 as part of draft Supplement 4 to the 05 series of amendments to UN Regulation No. 41.

6. The experts from IWG RD-ASEP presented a proposal for a new 06 series of amendments in order to strengthen the RD-ASEP testing conditions of motorcycles (ECE/TRANS/WP.29/GRBP/2025/5). GRBP adopted this proposal, as amended by GRBP-81-02 and GRBP-81-15, and requested the secretariat to submit it for consideration and vote at the June 2025 sessions of WP.29 and AC.1 as draft 06 series of amendments to UN Regulation No. 41. To avoid legal uncertainty, GRBP also requested the secretariat to explicitly include in the proposal draft Supplement 4 to the 05 series of amendments, as indicated above, based on ECE/TRANS/WP.29/GRBP/2025/4, as amended GRBP-81-03, and ECE/TRANS/WP.29/GRBP/2025/7, as amended by GRBP-81-29.