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.

5. The expert from IMMA introduced amendment proposals to the 04 and 05 series of amendments that strengthened provisions against test defeating, facilitated the conformity of production testing and corrected the communication document (ECE/TRANS/WP.29/GRBP/2025/6 and ECE/TRANS/WP.29/GRBP/2025/7). GRBP adopted these proposals, as amended by respectively GRBP-81-30 and GRBP-81-29, and requested the secretariat to submit them for consideration and vote at the June 2025 sessions of WP.29 and AC.1 as draft Supplement 12 to the 04 series of amendments and 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.