Document GRVA-01-12
UN R90: Proposal for a Supplement to the 02 series of amendments
Submitted by CLEPA

Proposal to correct editorial errors and to insert the word “tolerance” in para. 2.3.3.4.1. The editorial errors originated with documents WP29/2016/58 (relating to GRRF-80-37), GRRF/2015/22 and GRRF-81-04-Rev.1.

Discussions and Outcomes
2nd GRVA session (28 Jan-1 Feb 2019)

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.

1st GRVA session (25-28 Sep 2018)

56. Due to the lack of time, GRVA agreed to postpone the consideration of
GRVA-01-12 and the oral report of the expert from Spain on the activities of the Special Interest Group of experts on UN Regulation No. 90 until the January 2019 session.

169th WP.29 session (21-24 Jun 2016)
WP.29/2016/58
This proposal (WP.29/2016/58) was adopted by the World Forum. Thirty-four Contracting Parties out of the 42 applying UN R90 were present for the vote by AC.1. Thirty-four voted in favor with zero against and zero abstaining.
81st GRRF session (1-5 Feb 2016)
GRRF-81-04/Rev.1

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.

80th GRRF session (15-18 Sep 2015)
GRRF-80-37
GRRF/2015/22

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.