Proposal for corrections and clarifications concerning power definition, calibration, temperature correction and Reference sound assessment.

Amendments clarify the procedure of collection and transmission of data on the Real Driving Additional Sound Emission Provisions (RD-ASEP) which starts on 1 July 2023 – the date that was previously fixed by Supplement 7 to the 03 series of amendments. Because the present document, if approved by WP.29 and AC.1 in June 2023, would enter into force later (around January 2024), the World Forum is also invited to call upon the Type Approval Authorities and Technical Services of Contracting Parties to start, already as of 1 July 2023, the collection and transmission of RD-ASEP data

Proposal for clarifications and corrections, including an update to reference ISO 5130:2019.

Proposal to address comments on the adopted Supplement 4:

1. align the flowchart in the appendix to Annex 3, Figure 3c with the amendment to paragraph 3.1.2.1.4.1 (c) of Supplement 3 to the 03 series
2. amend Appendix to Annex 3, Table 1 to limit to pure electric vehicles the options to either use mechanical or electronic devices to control the gear shift or take measures to avoid accelerations greater than 2.0 m/s² (GRB/2018/2 and GRB-67-17)
3. under Annex 7, paragraph 5.2., align the principle of testing between automatic and manual transmission having more than 5 gears.

Proposal to correct a reference in Supplement 3 to the 03 series of amendments, to introduce transitional provisions in line with the transitional provisions in Supplement 3, and to reintroduce a sentence deleted by mistake in Supplement 4 to the 03 series of amendments to UN Regulation No. 51.