Proposal to clarify the intent of the selected paragraphs to ensure that systems with with one service brake meet braking performance requirements using only that brake system (i.e, without any assistance from the secondary brake system). There had been an interpretation that for systems with two service brakes each brake had to meet the requirements which would result in higher stringency levels than intended by the requirement for single brake systems.

The proposal also clarifies the parts of the braking system that should be considered with respect to hydraulic brake and mechanical transmissions and further clarifies that the test procedures are designed to simulate a brake failure rather than produce one.

Proposal to include a footnote in the scope of the regulation alerting type approval authorities to the possibility for exemptions to the automatic emergency braking systems requirements based upon reasonable technical feasibility, cost/benefit, and/or other evidence. The broad notion is that AEBS is intended to prevent accidents due to inattention while driving long distances, especially on highways. Therefore, vehicles designed for purposes not given to such monotonous long-distance travel should, under this proposal, logically be exempted on a case-by-case basis from AEBS requirements.

Proposal to include a footnote in the scope of the regulation alerting type approval authorities to the possibility for exemptions to the automatic emergency braking systems requirements based upon reasonable technical feasibility, cost/benefit, and/or other evidence. The broad notion is that AEBS is intended to prevent accidents due to inattention while driving long distances, especially on highways. Therefore, vehicles designed for purposes not given to such monotonous long-distance travel should, under this proposal, logically be exempted on a case-by-case basis from AEBS requirements.

Correction of errors in the proposal of the ad hoc expert group on transitional provisions to clarify and update these terms within the light braking regulation, including provisions for extensions of type approvals granted according to the antecedent requirements of the original approval. These amendments also relate to the transfer of brake-related telltale provisions to UN R121. The proposal notes the deletion of two pictograms referencing electronic stability controls (ESC).

Explanation of three options developed for handling the approval of electronic stability controls (ESC) and brake-assist systems (BAS) under regulaitons separate from UN R13-H (light vehicle braking) while fulfilling the requirements of complex electronic systems (CEL).

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.

Proposal to clarify the intent of the selected paragraphs to ensure that systems with with one service brake meet braking performance requirements using only that brake system (i.e, without any assistance from the secondary brake system). There had been an interpretation that for systems with two service brakes each brake had to meet the requirements which would result in higher stringency levels than intended by the requirement for single brake systems.

The proposal also clarifies the parts of the braking system that should be considered with respect to hydraulic brake and mechanical transmissions and further clarifies that the test procedures are designed to simulate a brake failure rather than produce one.

Proposal to clarify provisions on the use of Combined Braking Systems (CBS) and make some additional editorial improvements. This document contains GRRF/2014/05, GRRF/2014/06, GRRF-76-36 Rev 1 and updated by the comments raised at the seventy-sixth GRRF session.

Proposal to delete the contents of Annex 9 on parking brake systems equipped with a mechanical brake-cylinder locking device due to obsolescence.

Proposal to clarify and update transitional provisions, including provisions for extensions of type approvals granted according to the antecedent requirements of the original approval. These amendments also relate to the transfer of brake-related telltale provisions to UN R121. The proposal was adopted by the Working Party on Brakes and Running Gear (GRRF) at its 76th session, based on document GRRF/2014/16 as reproduced in Annex III to the session report.

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 proposal simplifies the approval process and was adopted by the Working Party on Brakes and Running Gear (GRRF) at its 67th session as amended by Annex IV of the session report and based on a proposal by OICA, CLEPA and FEMFM (document GRRF/2014/9 ).

Proposal to update the transitional provisions of UN R13, including provisions for extensions of type approvals granted according to the antecedent requirements of the original approval. These amendments also relate to the transfer of brake-related telltale provisions to UN R121. The proposal also would clarify and align UN R13 with UN R107 on bus construction with regard to the exemption of articulated buses and coaches from the requirements for vehicle stability equipment. These proposals are based on documents GRRF/2014/7 and GRRF-76-20 as amended and reproduced in Annex II of the report of the GRRF on its 76th session.

Amendment to correct the omission of text concerning the transitional provisions.

At its 76th session, GRRF agreed on amendments to the transitional provisions of Regulation No. 13-H. When preparing the official document GRRF/2014/16, the text presented in this amendment was inadvertently omitted.

Proposal based on informal document GRRF-76-21 to remove all references to Annex 10 from Annex 13 by transferring the provisions concerning vehicles with and without anti-lock braking systems to Annex 10.

Proposal to clarify provisions concerning the use of Combined Braking Systems (CBS) and for a series of amendments to clarify a variety of requirements, notably concerning test surface requirements, ABS cycling, and peak braking coefficient measurements. The proposal clarifies the terms “inoperative” and “disconnected”, introduces the “K-method”.

Proposal by Italy to introduce requirements for the approval of replacement brake discs for L-category (motorcycle and related) vehicles.

Proposal based upon informal document GRRF-76-45 to clarify provisions on the use of Combined Braking Systems (CBS) and make some additional editorial improvements.

Proposal to clarify braking requirements and to align them with UN R13-H on light vehicle braking.

Completes transition of ESC symbol to UN R121 and clarifies the transitional provisions.

Proposal to clarify and update transitional provisions, including provisions for extensions of type approvals granted according to the antecedent requirements of the original approval. These amendments also relate to the transfer of brake-related telltale provisions to UN R121.

Proposal to introduce a definition and provisions for lane-keeping assist systems (LKAS).

Proposal to clarify the provision for permissible deactivation of ABS systems under the proposal to clarify the use of Combined Braking Systems (CBS) under GTR No. 3.

Proposal to clarify the provision for permissible deactivation of ABS systems under the proposal to clarify the use of Combined Braking Systems (CBS) under UN R78.