UN R90 unintentionally omits the bedding procedure for the brake drum high load test for M2, M3, N2 and N3 vehicles. CLEPA proposes using the same bedding procedure as already adopted for the thermal fatigue test for such vehicles and for the high load tests for trailers.

Proposal to improve the definition of “identical” parts as applied to replacement brake discs and drums and to introduce an “identical” part definition for brake linings.

Responses to document GRRF-75-19 detailing OICA’s remaining concerns over the proposal to refine the definition of “identical” discs and drums and to extend this to brake linings.

Proposal to improve the definition of “identical” parts as applied to replacement brake discs and drums and to introduce an “identical” part definition for brake linings. This documents supersedes document GRRF-75-18.

Proposal to clarify that like original brake discs and drums, original brake lining assemblies & drum brake linings are also not subject to this regulation and to refine the definition of “m_axle” as the “maximum technically” permitted mass of the axle in alignment with the definition in Annex 11-Appendix 1, Table 1 of UN R13.

Reformatted proposal to clarify that like original brake discs and drums, original brake lining assemblies & drum brake linings are also not subject to this regulation and to refine the definition of “m_axle” as the “maximum technically” permitted mass of the axle in alignment with the definition in Annex 11-Appendix 1, Table 1 of UN R13.

For testing purposes, UN R90 defines a “test group” as a grouping of parts having the same characteristics. The regulation then defines a “variant” as a part within a “test group”. However, the approval numbers under the rule stipulate the identification of each variant certified. As a result, the text technically requires certification of each individual part (variant) which was not the intention of the drafters. CLEPA raises this for information purposes with the intention to put forward a proposal at the next GRRF session.

Proposal to clarify the definition of a “variant” in order to avoid unintended interpretations of the certification requirements that could result in additional financial and administrative costs. As currently worded the approval of a Test Group requires individual certification for each part contained within the Test Group. Some Test Groups can contain in the region of 30 part numbers. This would align the practice for brake discs and drums with that for brake linings.

Proposal to clarify the text in order to avoid additional administrative and financial costs to the applicant due to misinterpretation of the intent of the text.

Proposal to remove tables specifying general values for replacement discs and drums that are identical to the original (2.3.3.4) since such replacements must by definition have values identical to the corresponding original parts. The proposal also would change the maximum permitted thickness variation of discs for medium and heavy vehicles from 0.030 mm to 0.050 mm (the common OEM specification).

Proposal to remove tables specifying general values for replacement discs and drums that are identical to the original (2.3.3.4) since such replacements must by definition have values identical to the corresponding original parts. The proposal also would change the maximum permitted thickness variation of discs for medium and heavy vehicles from 0.030 mm to 0.050 mm (the common OEM specification).

Updated version of the proposal to remove tables specifying general values for replacement discs and drums that are identical to the original (2.3.3.4) since such replacements must by definition have values identical to the corresponding original parts. The proposal also would change the maximum permitted thickness variation of discs for medium and heavy vehicles from 0.030 mm to 0.050 mm (the common OEM specification). This revised proposal clarifies that the proposal would revise the specifications for vehicles of categories M3, N3, O3 and O4 but retain the maximum permitted specification of 0.030mm for vehicles of categories M2 and N2.

Presentation highlighting the growing use of carbon-ceramic (CSiC) brake discs and the need to address these products under UN R90 given that the replacement discs regulation is founded upon conventional cast iron technologies.

Revised version of the proposal to remove tables specifying general values for replacement discs and drums that are identical to the original (2.3.3.4), taking into account comments received during the February 2016 GRRF session. The tables are considered superfluous since replacement parts identical to the original parts must by definition have values identical to the corresponding original parts. This proposal also would change the maximum permitted thickness variation of discs for medium and heavy vehicles from 0.030 mm to 0.040 mm (the common OEM specification). This has been changed from the previous proposal of 0.050 mm. This revised proposal clarifies that the proposal would revise the specifications for vehicles of categories M3, N3, O3 and O4 but retain the maximum permitted specification of 0.030mm for vehicles of categories M2 and N2.

Presentation on remanufactured brake calipers as part of the discussion on whether such products should be subject to a new UN Regulation separate from UN R90. CLEPA does not believe these products require a new regulation.

CLEPA presentation on the type approval process for replacement brake pads, linings, and drums and the impact of the new approval numbering system adopted under Revision 3 to the 1958 Agreement on approvals and markings of these products.

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 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 provisions of UN R90 related to approval numbers and markings with the provisions of Schedule 4 to the 1958 Agreement.

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

Proposal to replace the specification of the type and size of brake caliper and brake disc for brake lining CoP assessment with specifications for a pad area and thickness of the original approval. The original specification corresponds to obsolete caliper and rotor configurations no longer in widespread use.

Proposal to replace the specification of the type and size of brake caliper and brake disc for brake lining CoP assessment with specifications for a pad area and thickness of the original approval. The original specification corresponds to obsolete caliper and rotor configurations no longer in widespread use.

Proposal to address difficulty in Conformity of Production (CoP) routine obligations caused by unavailability of specifically prescribed hardware.

ECE/TRANS/WP.29/GRVA/2021/15 was prepared by the expert from the European Association of Automotive Suppliers (CLEPA) to resolve the problem of fulfilling increasingly difficult Conformity of Production (CoP) routine obligations caused by unavailability of the specifically prescribed hardware.

Proposal to introduce the option of using a QR code (or other type of digital data carrier) to replace the paper installation instructions physically included in the packaging.

Proposal to introduce the option of using a QR code (or other type of digital data carrier) to replace the paper installation instructions physically included in the packaging.

Proposal to clarify the packaging and labelling requirements for some types of brake lining assemblies, which could be fitted for various different applications and to allow the option of using a QR code (or another type of digital data carrier) to replace some information printed on or included in the packaging.

Proposal to clarify the packaging and labelling requirements for some types of brake lining assemblies, which could be fitted on various different applications and to allow the option of using a QR code (or another type of digital data carrier) to replace some information printed on or included in the packaging.

Proposal to include the option to use a QR code (or another type of digital data carrier) to replace, in case of necessity, some packaging information.