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.

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.

58. The secretariat briefly informed GRVA on the activities of the IWG on International Whole Vehicle Type Approval and especially the discussion on the new format of approval numbers specified in Schedule 4 of the 1958 Agreement. The expert from the Russian Federation tabled a proposal aimed at addressing this issue for UN Regulation No. 90 (GRVA-01-15). The expert from CLEPA tabled an alternative proposal (GRVA-01-41). GRVA agreed to resume consideration of this item at its next session.

62. The expert from the Russian Federation introduced ECE/TRANS/WP.29/GRVA/2019/11 aimed at addressing the issue raised in WP.29-176-19. The expert from CLEPA expressed reservations because customs could be confused by the introduction of differences between the Approval Number and the Approval Code proposed in this document. The expert from Spain mentioned that UN Regulation No. 90 was used in various countries not being Contracting Party to the 1958 Agreement and that therefore the issue raised concerning customs could be valid. The expert from Spain stated that Transitional Provisions could be added to the document. The expert from CLEPA stated the need to first test the markets with this new approach and agreed to undertake a study. The expert from the Russian Federation agreed to submit a revised proposal for consideration at the September 2019 session of GRVA.

58. The secretariat briefly informed GRVA on the activities of the IWG on International Whole Vehicle Type Approval and especially the discussion on the new format of approval numbers specified in Schedule 4 of the 1958 Agreement. The expert from the Russian Federation tabled a proposal aimed at addressing this issue for UN Regulation No. 90 (GRVA-01-15). The expert from CLEPA tabled an alternative proposal (GRVA-01-41). GRVA agreed to resume consideration of this item at its next session.

62. The expert from the Russian Federation introduced ECE/TRANS/WP.29/GRVA/2019/11 aimed at addressing the issue raised in WP.29-176-19. The expert from CLEPA expressed reservations because customs could be confused by the introduction of differences between the Approval Number and the Approval Code proposed in this document. The expert from Spain mentioned that UN Regulation No. 90 was used in various countries not being Contracting Party to the 1958 Agreement and that therefore the issue raised concerning customs could be valid. The expert from Spain stated that Transitional Provisions could be added to the document. The expert from CLEPA stated the need to first test the markets with this new approach and agreed to undertake a study. The expert from the Russian Federation agreed to submit a revised proposal for consideration at the September 2019 session of GRVA.

55. The expert from Spain presented ECE/TRANS/WP.29/GRVA/2018/12 proposing to extend the scope of UN Regulation No. 90 with replacement brake lining assemblies for vehicles of Category L₆ and L₇, which were recently included in the latest version of UN Regulation No. 78 and to align the provisions in Annex 7 to UN Regulation No. 90 with those in the current text of UN Regulation No. 78. GRVA agreed to resume consideration of this document at its next session.

23. The expert from Spain recalled the purpose of the Special Interest Group of Experts on UN Regulation No. 90 and presented the status report of the group (GRRF-86-39).

24. The expert mentioned that UN Regulation No. 90 was not aligned with corresponding provisions in UN Regulation No. 78 and proposed amendments to Annex 7 (GRRF-86-41). GRRF requested the secretariat to keep this document on the agenda for its September 2018 session.