Proposal for Supplement 3 to the 02 series of amendments to Regulation No. 90
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Proposal to introduce provisions for the approval of replacement brake discs for L-category (motorcycle and related) vehicles, to remove tables specifying general values for replacement discs and drums that are identical to the original, change the maximum permitted thickness variation of discs for medium and heavy vehicles from 0.030 mm to 0.040 mm, and clarify the text in order to avoid additional administrative and financial costs to the applicant due to misinterpretation of the intent of the text.

Reference Number: WP.29/2016/58
Date: 6 April 2016
Proposal Status: Adopted
Related Documents:
GRRF-80-37 | Proposal for Supplement 03 to the 02 series of amendments to Regulation No. 90
GRRF-81-04/Rev.1 | Proposal for amendments to ECE/TRANS/WP.29/GRRF/2016/22
GRRF/2015/22 | Proposal for amendments to Regulation No. 90
GRRF/2016/22 | Proposal for an amendment to Regulation No. 90
GRVA-01-12 | UN R90: Proposal for a Supplement to the 02 series of amendments
Working Party on Brakes and Running Gear | Session 86 | 12-16 Feb 2018

25. The expert from CLEPA introduced GRRF-86-40 proposing to amend ECE/TRANS/WP.29/2016/58, which was prepared on the basis of three documents with conflicting provisions. The secretariat informed GRRF that ECE/TRANS/WP.29/2016/58 was adopted by AC.1 as Supplement 3 to UN Regulation No. 90 and that the corrections proposed could not be adopted as drafted. The secretariat agreed to prepare a revised version that could potentially be adopted (GRRF-86-40-Rev.1) by AC.1 as a Supplement 4.