In-session mark-up from the 22nd FADS task force meeting.

Proposal for editorial corrections.

Proposal for editorial corrections.

Proposal for editorial corrections.

Proposal for editorial corrections.

Proposal for editorial corrections.

Proposal for editorial corrections.

Proposal to include provisions on maximum noise emissions from audible vehicle alerting systems (AVAS) under development for low-sound vehicles.

Testing and Evaluation of the variant method using the dω/dt form.

Pursuant to the introduction of the deceleration method for measuring tire rolling resistance using the dω/dt approach (“Deceleration Calculator”) proposed by NAMI and accepted by GRB, UTAC (France) provides information on the results of tests conducted to confirm repeatability and reproducibility of the new method using different machines.

Proposal for corrections to the draft Supplement 5 to the regulation. The draft supplement aims to refine definitions, removes the “AWD” abbeviation for “audible warning device” to avoid confusion with its more common use for “all wheel drive”, adds T category agricultural vehicles to the scope, modifies some administrative communications, and proposes three-direction acoustic measurements.

Comments on the draft Supplement 5 to UN R28.

Proposal for clarifications, including the applicability of certain provisions, in Annex 3: Methods and instruments for measuring the sound made by motor vehicles.

Proposal to correct Annex 3, paragraph 1.4.1. of the French version of the regulation to align with the original English text.

Presentation for discussion of specific technical questions concerning the application of UN 51 test procedures.

Proposal to introduce a definition for “Electronic” to mean a principle of operation by electric or electro-magnetic force with amplifier and speaker or resonator in order to address new technologies enabling a driver-actuated audible signal of the presence of a vehicle in a dangerous traffic situation.

Proposal to address non-negligible differences in sound performance in cases where COP tests are carried out under conditions that differ from those used for the granting of the type approval. The proposal introduces conditions, procedures, and corrections to be applied to L_urban to account for the difference in test conditions.

Editorial amendments to proposed transitional provisions

Proposal to introduce provisions for “worn tyre” thresholds and test procedures.

Proposal to clarify the identification, marking and test provisions applicable to tyres designed for speeds above 240 km/h.

Proposal from expert from France for amendment to Supplement 1. Tyre pressure monitoring system (TPMS) could refer to UN R64 (till 02 series of amendment) and/or R141.
R64 series 02 concerns temporary use spare unit, run-flat tyres and/or a run-flat system and/or a tyre pressure monitoring system for M1 or N1 category vehicles. R141 is dedicated M1-category vehicles approved for their TPMS

Proposal to clarify:

1. Signature of the 3PMSF test reports
2. Mould cure retreaded tyre (not UN R117 pattern).

Proposal to add requirement on the monitoring of the machine deviation for rolling resistance measurement.

The purpose is to ensure that the target test speed is either 10 km/h, or 20 km/h, in forward motion, or 6 km/h in reverse motion and that the tolerances given by the regulation are linked to the testing and not used for more favorable testing speed.

Summary of GRBP-74-06

Propose a new scheme of approval for Retreaded snow tyres for use in severe snow conditions

TF TA will address the tyres abrasion performance by determining a standardized measurement method which will allow for the quantification of the microplastic emissions in the environment. At the same time, the TF TA will investigate the correlation between abrasion rate and durability and consider the inclusion of both abrasion rate and durability