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.

Proposal of requirements for L category vehicles. The original proposal addressed a broader range of issues and could not be finalized during the GRRF session. This document allows items where consensus was reached to move forward for WP.29 consideration.

Proposal to add replacement brake components for L₆ and L₇ (quadricycles) to the regulation, to correct references, and to clarify the text. This proposal aligns UN R90 with UN R78 (motorcycle braking).

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.

Proposal to align the text in Annex 7 with UN R78 and to insert the reference to the L₆ and L₇ vehicle categories to respond to requests from the industry for type approval for the replacement brake lining assembly for these vehicles.