Password-protected file from ISO. Please contact the GRB secretariat for access.

ASEP data file for 5-1-2 noise limits as of 13 June 2017.

ASEP data file for L_urban noise limits as of 13 July 2017.

Proposal to increase the stringency of tyre noise limits starting from 1 November 2020.

Proposal to align ASEP for high powered L4 and L5 vehicles, used for passenger transport, is proposed in line with UN Regulation No 41.04 due to comparable sound emissions levels of L4 and L5 vehicles with the ones of L3 vehicles and the possibility of applying similar measurement methods for sound emissions for those vehicle categories. This is also supported by the Commission study on enhanced sound requirements for mopeds, quads and replacement silencers of L-category vehicles which resulted in amendments to UN Regulation Nos 9, 63 and 92 (ref. document WP.29/2017/2).

Review of UN R41-04 limit-value application.

Proposal to increase the precision of the lane of travel measurements by extending to two digits after the decimal point and to designate the line DD’ for the end of the measurements. The introduction of the line DD’ would impact the minimum length of the section after the line BB’ to be coated per ISO 10844.

Proposal to exclude pure electric vehicles, including vehicles with auxiliary electric propulsion, from the scope of the regulation. This proposal has been submitted to complement WP.29/2017/4.

Proposal for a new working group to develop harmonized technical specifications, test procedures and performance requirements for audible warning systems that signal when a category M₃, N₂, or N₃ vehicle is moving in reverse gear.

Discussion of motorcycle and related vehicle noise issues, especially related to aftermarket modification (non-original replacement exhaust silencer systems (NORESS)).

Proposal to increase the measurement precision by requiring measurement to the second decimal and to designate the line DD’ as the end point for measurements. The proposal also suggests editorial improvements and corrections.

Proposal to delete the proposed amendment to paragraph 6.2.3. of UN R51 which would limit the scope of the additional sound emissions provisions (ASEP) to M₁ and N₁ vehicles equipped with an internal combustion engine operational within the control range of Annex 7. Switzerland submits that the limitation would release manufacturers from responsibility for vehicle sound behavior outside of ASEP in contradiction to the historical interpretation that manufacturers are responsible for ensuring reasonable vehicle sound levels under all conditions, not only within ASEP.

Presentation on the status of the European Commission-sponsored study to investigate the potential of and develop a proposal for new sound limits of L-category vehicles under Euro 5.

German authorities have carried out a study to assess the possibility for measuring UN R41.04-approved L category vehicles using typical “roadside check” equipment. The study found that such equipment provides a “lite” version of the UN 41.04 procedures that is useful in evaluating real-world performance. Germany intends to pursue a national “pass-by lite” test directive for UN R41-approved motorbikes and for non-original replacement exhaust silencer systems (NORESS) roadside and periodic technical inspections.

Proposal to

1. harmonize the definitions of v_BB’ in UN R51
2. clarify the scope of Annex 1, Appendix 2, paragraph 5 by substituting “Running” for “Suspension” to describe the system addressed
3. clarify the procedures for particular cases under Annex 3.

Consolidation of draft amendments collected by OICA from various sources, including remarks of contracting parties during expert group meetings and meetings, and from discussions within the informal working group on ASEP. The document has been prepared to encourage discussion.

Presentation on the status of the transposition of UN R138 on Acoustic Vehicle Alerting System (AVAS) requirements for quiet (e.g., electric) vehicles into EU law. The European Commission expects publication of the new requirements in the October 2017 Official Journal. The Commission is working on the transposition of the 01 series of amendments (prohibiting driver-activated pause functions).