6. The representative of ISO introduced GRBP-84-16 as a summary introduction for GRBP-84-11 and GRBP-84-12. The representative of Germany noted that some technical services seemed to interpret with the current legislative text that cable replacement needed new calibration. The representative of the Netherlands acknowledged the efforts in trying to make the text clearer and underlined a similar approach was used in the Netherlands.
7. GRBP agreed to reconsider the proposal at its next session based on an updated proposal. The Chair proposed to have such proposal stay at GRBP level for the time being and decide on the documents status during forthcoming sessions of GRBP.
8. The representative of OICA introduced GRBP-84-33 and GRBP-84-34. The representatives of Italy, Germany and of ISO were supportive of the proposal. The Chair invited OICA to prepare a working document for forthcoming sessions of GRBP.
9. The representative of the Group of interested Stakeholder (GOIS), from the Netherlands, introduced GRBP-84-17-Rev.1 as an update to GRB-68-03. The representative of OICA introduced GRBP-84-36-Rev.2 and GRBP-84-37 in order to make progress and find a compromise on the content of GRBP-84-17.
10. Following lengthy discussions during and on the side of the session, GRBP adopted GRBP-84-17-Rev.1 and agreed this document should replace GRB-68-03 under the relevant section of the GRBP webpage.
11. GRBP was briefed on the progress of the Informal Working Group on Real Driving – Additional Sound Emission Provisions (IWG RD - ASEP) (GRBP-84-06-Rev.1) and a draft 04 series of amendments to UN Regulation No. 51 (GRBP-84-07). The representative of OICA welcomed the inclusion of the three phases in the transitional provisions to keep additional flexibility for contracting parties and simplify the approval process.
12. The representatives of the EU acknowledged the good progress made and, together with the representative of Japan, requested more time to scrutinize the proposal. The representatives of Switzerland and of the Netherlands insisted on the need for transparency for the SEM model used for RD-ASEP noise modelling, including open access to background material, documentation and/or computer code.
13. The Chair of the IWG RD-ASEP agreed to leave the proposal open and come back with an updated proposal at next sessions of GRBP.
14. The Chair of the IWG RD-ASEP introduced GRBP-84-38 as revised Terms of Reference for the IWG, with a proposal to extend the mandate until February 2028. GRBP adopted GRBP-84-38 and requested the secretary of the IWG on RD ASEP to upload the updated ToRs into the relevant section of the wiki.