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 allows discs with a different geometry to be included in the same group as long as the disc itself is subject to lower thermal and mechanical stresses than the reference disc. Aims at simplifying the definition of disk groups, reducing their number, while providing the same guarantees from a technical point of view.

Clarifies the regulation and its scope, by specifying the grouping criteria of the brake lining assemblies. It provides clear instructions about grouping criteria for brake shoes to allow brake shoes manufacturers to proceed with the homologation

Proposal from GRVA 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.