Proposal to correct some references, which need to be updated as a consequence of document WP.29/2020/70, adopted at the June 2020 WP.29 session, notably

1. Paragraph 5.4.1 renumbered as paragraph 5.5.1.
2. Paragraphs 5.4. and 5.5. respectively renumbered as paragraphs 5.5. and 5.6.

Proposal to amend ECE/TRANS/WP.29/GRBP/2021/23

1. Proposal to amend the 04 and 05 series of UN R41 and the 02 series of UN R63 to allow use of the latest state of the art ISO 10844 test track.
2. ISO has updated the ISO 10844 standard to reduce track-to-track variability caused by differing interpretations and implementations of the technical requirements. The tyre/road contribution to the overall sound performance of a motorcycle is lower compared to cars.
3. The improvements from the ISO 10844:2014 to the 2021 version would not result in a need for updating the surface for L-category test tracks: Updating the ISO 10844 reference would have negligible impact on the measurement procedure and measurement results.
4. If however the ISO reference in the L-category noise regulations would be updated without maintaining the current ISO 10844:2014 as an option, IMMA sees a potential risk of tracks needing recertification, creating administrative burden with no practical benefit.
5. If later on, the tracks would need re-surfacing anyway (e.g. due to wear), then these can be built and certified according to ISO10844:2021. Because of the above, IMMA would like to allow certification with the tracks complying to either ISO10844:2014 or ISO10844:2021.
6. This proposal takes the opportunity to introduce proposals for additional corrections in R41/04 and R41/05 as specified below:
   • Supplement 9 to the 04 series of amendments to UN Regulation 41 introduced a new paragraph 12.4, needing to renumber the (former) paragraphs 12.4 to 12.9 (WP.29/2021/4). Due to this renumbering, the reference to paragraph 12.7 in Annex 6 footnote a, and Annex 7 paragraph 2.6 is no longer correct and should be replaced by a reference to paragraph 12.8.
   • With the introduction of the 05 series of amendments the Transitional Provisions were rewritten and footnote a of Annex 6 became obsolete.

Replace the proposal for Supplement 3 of the 05 Series of amendments

Proposal to replace the Supplement 11 of the 04 Series of amendments

Proposal to replace proposal for Supplement 6 of the 02 Series of amendments

Proposal to amend Annex 7, paragraph 3.1, to add provisions allowing discard of test runs when additional operating conditions lead to riding conditions not expected to occur in real traffic such as front wheel lift up, apparent wheel spin, chain slap, or engine lugging, and amend paragraph 3.2.2 to specify that if unusual riding conditions occur during testing, the test shall be performed in the next higher gear and maximum vehicle speed shall be reached at line BB’ instead, thereby ensuring consistency with the 05 and 06 series of UN Regulation No. 41.

Proposal to correct inconsistencies on the exemption conditions for the additional sound emission provisions (ASEP) for vehicles with variable gear ratios or automatic transmission with non-lockable gear ratios.

Proposal to introduce mandatory additional sound emission provisions (ASEP) testing.

Proposal is to correct an omission regarding the compensating resevoir fill time thereby aligning UN R41 with the other noise UN Regulations Nos. 9, 51 and 63.

Proposal to allow multiple exhaust and/or silencing system configurations to be explicitly listed under the same motorcycle type approval in order to reduce redundancy and number of separate approvals and documentation.

Proposal to minimize proliferation of approval numbers from models with differences in vehicle exhaust and silencing systems.

Per the transitional provisions of Supplement 3 to the 04 series of amendments, from 20 January 2021, the specifications for the test site reproduced in Annex 4 will be replaced by the provisions of ISO 10844:2014. Therefore, this proposal aims to align the 04 series of amendments with ISO 10844:2014, replacing provisions from ISO 10844:1998 (and proposing a clearer image for Figure 1).

Proposal to align the 08 series of amendments to UN Regulation No. 9 with standard 10844:2014 of the International Organization of Standardization (ISO).

Proposal to align the 02 series of amendments to UN Regulation No. 63 with standard 10844:2014 of the International Organization of Standardization (ISO).

Proposal to complete the additional sound emission provisions’ table of the communication form in the 05 series of amendments to UN R41 to avoid oversight in data collection and entries.

Proposal to allow using the state-of-the-art test track from the latest standard ISO 10844:2021.

Proposal to allow using the state-of-the-art test track from the latest standard ISO 10844:202

Proposal to allow using the state-of-the-art test track from the latest standard ISO 10844:2021.

Proposal to provide industry guidelines on anti-tampering provisions for Non-Original Replacement Exhaust Silencing Systems (NORESS) in UN Regulation No. 92.

Proposal to strengthen provisions against test defeating and to facilitate Conformity of Production testing.

Proposal to strengthen provisions against test defeating, to facilitate Conformity of Production testing, and to correct the communication document.

Proposal to allow the use of the test track as specified in ISO 10844:2021.

Proposal to clarify the gear selection procedure pursuant to the amendment to allow deviation from the reference acceleration a_wot,ref requirement for Conformity of Production tests.

Submission of the International Motorcycle Manufacturers Association (IMMA) in order to change the inward visibility angle of front position lamp in Regulation No. 50.

Submission of the International Motorcycle Manufacturers Association (IMMA) in order to change the inward visibility angle of front position lamp in Regulation No. 53.

Proposal to add “less than 5 degrees” as a test condition in order to prohibit the unintended use of bend lighting in the proposal for collective amendments to Regulations Nos. 53 and 113 on bend lighting for motorcycles.

IMMA correction to previously adopted GTB proposal for amendments to Regulation No. 113 on bend lighting for motorcycles subsequently adopted by WP.29 as Supplement 2 (document WP.29/2012/83).

Proposal to revise the Italian proposal in order to clarify that the requirements pertain only to characteristics verifiable directly on each lamp in order to avoid confusion with characteristics that can only be verified on the vehicle after installation.

IMMA correction (of an oversight on
inclusion of the colors of the lights from R53 to ensure complete alignment of UN R74 with R53) to its proposal to enable the optional use of hazard warning lamps on L1 category vehicles to alert other vehicles in case of breakdown or other situations that could lead to danger on the road.

Updated document to correct the original proposal to introduce the possibility of interdependent lamps for dedicated motorcycle lamps by including an omitted diagram and highlighting the marking clause.

Text prepared by IMMA in order to introduce amendments to ensure consistency of Chapter II Vehicle lighting and light-signalling devices of the 1968 Convention on Road Traffic with regulations under the 1958 Agreement and regulations applicable in the European Union.

Clarification of certain diagrams in the original proposal (document GRE/2014/15). Supplement 17 proposes to introduce the possibility of interdependent lamps for dedicated motorcycle lamps.

IMMA proposal to provide transitional provisions to the German proposal to delete R113 Class B headlamps from R53 (document GRE/2014/32).

Proposal to delete the angle of incidence provision that was developed to ensure that the vehicle registration plate is illuminated. Given current technologies (e.g., LED lamps), the performance requirements of Annex 5 can be met without reference to the angle of incidence.

Revised proposal to delete in Regulation No. 53 the references to headlamps of Class B of Regulation No. 113.