GRRF-86-40
UN R90: Proposal for amendments
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Proposal to resolve inconsistencies present from Supplement 2 to the 02 series of amendments resulting from the approval of proposals in documents GRRF/2014/23/Rev.2, GRRF/2015/22 and GRRF/2016/22. The proposal also introduces provisions for L category (motorcycle and related) vehicles.
26. The expert from Italy presented GRRF-80-31, introducing ECE/TRANS/WP.29/GRRF/2014/23/Rev.2 and GRRF-80-37 and proposing requirements for the approval of replacement brake discs for L‑category vehicles, taking into consideration the latest technologies available in the market as well as comments received during the previous session of GRRF. GRRF adopted the proposal with the following amendments:
(a) the proposed transitional provisions (paras 12.1 to 12.6) shall be deleted;
(b) The note under Table A15/2.9 shall read: “There are no groups…”
27. The expert from CLEPA introduced ECE/TRANS/WP.29/GRRF/2015/22 proposing to enable the approval according to Regulation No. 90 of test groups instead of single variants. GRRF adopted the proposal with an amendment below:
In paragraph 4.2.3.(b), for “approval document” read “communication document”
28. GRRF adopted the proposal as amended and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their June 2016 sessions, as Supplement 3 to the 02 series of amendments to Regulation No. 90.
25. The expert from CLEPA presented ECE/TRANS/WP.29/2016/22 based on GRRF-80-12 proposing amendments to provisions defined for equivalent brake discs and drums and a relaxation of the requirement on the thickness variation for interchangeable replacement discs or drums. The expert presented a revised proposal GRRF-81-04 limiting the thickness variation requirement modification to vehicles of category O2, O3, N3 and M3. The expert from Italy expressed his concern with the proposed requirement relaxation. After discussion, GRRF agreed on the revised document GRRF-81-04-Rev.1. GRRF adopted the proposal amended by Annex IV to the report and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their June 2016 sessions, as Supplement 3 to the 02 series of amendments to Regulation No. 90.
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.
59. The expert from CLEPA introduced GRVA-01-12 with minor amendment proposals to UN Regulation No. 90, addressing the concern expressed in GRRF-86-40. The expert from France proposed that the amendment to the table in para. 5.3.4.1.1 should also include the vehicles of category L6 and L7 (in alignment with the vehicles of category M1 and N1). The experts from Spain and from CLEPA supported the proposed alignment of L6 and L7 values with the existing values for M1 and N1. The expert from CLEPA agreed to prepare a revised proposal for review at the September 2019 session.