Proposal as approved by the GRRF 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 of UN R13.

Proposal to add a maximum supply line pressure of 900kPa when the compressor is at cut-out during testing of electronic braking systems (EBS). The aim is to prevent trailer EBS failure warnings/shut downs when detecting excessive supply line pressure.

CLEPA proposed a framework for relating independent regulations on electronic subsystems of braking or steering systems to the primary braking/steering regulations. This proposal revises the wording, focusing on ESC systems with relation to the requirements for complex electronic control systems under Regulation 13-H.

Status report, including the current state of the draft text, on efforts to reach agreement on the introduction of provisions for electro-hydraulic systems into the test conditions for trailers with electrical braking systems.

Presentation discussing the framework for relating independent regulations on electronic subsystems of braking or steering systems to the primary braking/steering regulations.

Copy of a 2009 draft proposal to amend Regulation No. 13 to specify uniform requirements for towing trailers and motor vehicles which may tow more than one trailer (road train combinations).

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

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.

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

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.

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 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.

Request from the chair of the former informal group on automated couplings between vehicles for a mandate to develop amendments to braking, steering, vehicle stability, couplings, and possibly other areas related to modular vehicle combinations either through a new working group or an existing one (e.g., the R55 informal group). The aim would be to enable type approval of components used in vehicle combinations.

Status report, including the current state of the draft text, on efforts to reach agreement on the introduction of provisions for electro-hydraulic systems into the test conditions for trailers with electrical braking systems.

Proposal to clarify and align the text of UN R13 on heavy-duty braking with that of UN R107 on bus construction with regard to the exemption of articulated buses and coaches from the requirements for vehicle stability equipment. The text would specify that “Class I, Class A and articulated vehicles of categories M2 and M3” are exempted from the requirements.

Complete draft of the new version of the regulation on heavy-duty braking prepared by the GRRF secretariat. This text includes Supplement 10 which clarifies the requirements in Annex 21 of UN R13 on the use of EVSC simulation, corrects a “copy and paste” mistake concerning a signature requirement made when copying text from Annex 11 into Annex 12, Appendix 4, and harmonizes UN R13 with the Federal Motor Vehicle Safety Standard FMVSS 135 on electric vehicle requirements with regard to the regenerative braking system (RBS).

Presentation of the recommendations (see document GRRF/2014/7) of the expert group reviewing the transitional provisions of UN R13 pursuant to the decision to transfer the provisions on the electronic stability control (ESC) warning signal to UN R121 on controls and tell-tales. UN R13 contains 23 transitional provisions introduced to allow manufacturers to adapt to changes that have been made to the rule over time. The ad hoc expert group was formed to streamline these provisions by removing obsolete provisions and by applying uniform language.