7. The expert of the Informal Working Group on Additional Sound Emission Provisions (IWG RD-ASEP) presented their status report (GRBP-78-14) and the updated Terms of Reference (GRBP-78-13). GRBP agreed to rename IWG to the Informal Working Group on Real Driving – Additional Sound Emission Provisions (IWG RD – ASEP) and adopted its Terms of Reference, as contained in annex II to the session report.

8. The expert from IWG ASEP presented GRB-68-03 on interpreting the general ASEP provisions in the last sentence of paragraph 6.2.3. of the 03 series of amendments to UN Regulation No. 51. IWG ASEP was of the view that the developed definitions and specifications were adequate and valid enough to satisfy the intention of this sentence. Outside the specified control range, IWG ASEP deemed it difficult to provide viable specifications. IWG ASEP suggested that the provided interpretation be used as guidance for manufacturers, technical services, and type approval authorities for the practical application during type approval, conformity of production, and market surveillance.

9. GRB endorsed GRB-68-03 and requested the secretariat to publish it as a reference document under a special folder on the GRB website. GRB also recommended IWG ASEP to keep this document for further consideration within the ongoing revision process of ASEP.