Text as approved by the GRRF and prepared by the UN R55 informal group to update this regulation with respect to:
a) Requirements on remote indication,
b) Availability of information on coupling fixing points for A50X couplings,
c) On lateral strength of drawbars, and
d) a new class definition for fully automatic drawbar couplings.

Proposal to introduce a new Annex 7: “Special provisions for the powering of trailer steering systems from the towing vehicle” and otherwise amend the regulation to enable the approval of such trailer steering systems which the current text prohibits.

IMMA presentation regarding the intention to propose emergency stop signal (ESS) provisions to UN R78 and GTR No. 3. ESS, which automatically activates hazard warning lights during forceful braking situations, already exists under UN R13-H for cars and trucks. IMMA has submitted document GRE-2015-40 to similarly amend UN R53.

Draft proposal for a revised UN R64, removing the type-pressure monitoring systems provisions, in order to facilitate its use in the International Whole Vehicle System.

Proposal for a separate TPMS regulation, removing the Tyre Pressure Monitoring System provisions out of UN R64, in order to facilitate the establishment of the International Whole Vehicle Type Approval system. It is based on document GRRF/2015/13 taking into account the comments received at GRRF-78.

Proposal for a new annex concerning “special additional requirements for trailers of category O₂ without pneumatic connections and equipped with service braking systems with pneumatic energy storage devices”.

Under the International Whole Vehicle Type Approval (IWVTA) program, brake assist systems (BAS) and electronic stability controls (ESC) would be separated from UN R 13-H into new stand-alone regulations. This document has been prepared by an ad hoc group in order to ensure adequate transitional provisions to enable Contracting Parties to adapt to the new approach.

This document supersedes the official document GRRF/2014/13. It includes all the proposals introduced per document GRRF-79-08 and some of the proposal introduced per document GRRF-80-26.

Progress report on the development of provisions for automatically commanded steering functions under UN Regulation No. 79.

OICA proposal, as revised pursuant to comments received during the 80th GRRF (September 2015) session, to amend the Introduction section of UN R131 to highlight technical issues related to the installation of AEBS on some specific vehicles included in the scope of the regulation.

Revised proposal by Italy pursuant to comments received during the 80th GRRF (September 2015) session to introduce provisions for the approval of replacement brake discs for L-category (motorcycle and related) vehicles.

Proposal to remove provisions related to temporary/spare units, TPMS and to exceptional cases that would require type approval under UN R75 or R106.

CLEPA remarks defining sensor mounting requirements for heavy vehicles (Horizontally: up to 600 mm out of vehicle center; Vertically: between 330 mm and 800 mm above road-surface level) in order to avoid safety risks.

EC responses to IMMA comments (document GRRF-80-13) on the proposa to align the text with the provisions for anti-lock braking systems (ABS) used in other regulations (document GRRF/2015/41).

EC responses to IMMA comments (document GRRF-80-13) on the proposal to align the text with the provisions for anti-lock braking systems (ABS) used in other regulations (document GRRF/2015/40).

Proposal to ensure that coupling balls do not block rear lighting and/or registration plates. In line with the EU General Safety Rule, Annex IV specification for application of UN R55, couplings that might block lighting or plates must be removable, repositionable, and unlockable in order to make it easier for users to remove them or reposition them when not in use (e.g., towing a trailer.) Coupling balls that are so designed as to be unable to block lighting or plates may still incorporate locks and/or require tools to remove or reposition.

Proposed additions to the Statement of technical rationale and justification in GTR 16 (tyres), especially to clarify application and future development of the regulation.

Discussion document raising concerns and offering proposals concerning motorcycle ABS testing.

The current text of UN R54 does not encompass the case where a tyre designed for a “special” application can also fulfil the definition of a “snow” tyre. This proposal would allow for such tyres to be marked with the inscription M+S, M.S, or M&S while remaining in the category of use “special”.

Document GRRF/2015/39 proposes to change measurement units for drum speed from min-1 to km.h-1 to align the
requirements with other tyre regulations. This amendment proposal would clarify wording:
1. “speed category symbol” to “speed symbol”,
2. “load capacity index” to “load index”,
3. correct reference to para. 3.2.13. of the Regulation in Annex 7, Appendix 1, and
4. correct the boundary value of the load index in Annex 7, Appendix 1.

Document GRRF/2015/38 proposes to change the measurement units for drum speed from min-1 to km.h-1 in alignment with the requirements with other tyre regulations. This proposal would clarify a footnote reference by replacing “speed categories N or P” with “speed category symbols N or P”.

Documents GRRF/2015/40 and 41 propose to align GTR 3 and UN R78 with the provisions for anti-lock braking systems used in other regulations. The proposal clarifies the limits on the use of any temporary ABS deactivation switch and prohibition against permanent disabling of ABS if fitted on a motorcycle. IMMA wishes to make the wording more technology-neutral, clarify test conditions considered impractical, and allow time for manufacturers to comply (i.e., add transitional provisions).

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 correct errors and remove inconsistencies in the current regulatory text, including a correction to the formula used in Annex 12, Appendix 4 “Test report on the compatibility of the inertia brake control device, the transmission and the brakes on the trailer”.

Document GRRF/2015/27 proposes to modify the marking requirements to replace PSI with kilopascals (“kPa”). The intent is to harmonize the pressure indication and avoid confusion between UN Regulation No. 54 and US FMVSS 119 or FMVSS 139. This proposal would allow for the use of kPa markings in place of PSI prior to the 1 January 2018 transition date.

Proposal to improve the wording of the draft amendment on lane-keeping assistance systems, based on document GRRF-79-04.

Proposal to change the draft amendments to the 02 series of amendments to Regulation No. 30 regarding tyre dimension requirements.

Presentation supporting documents GRRF/2015/25, /29, and /32 proposing to:
a) Align definitions and content of UN tyre regulations;
b) Include a definition of “manufacturer” extracted from the resolution “R.E.3”;
c) Adopt a common definition and use of the terms “Manufacturer’s name”, “Brand name”, “Trademark”, “Trade description” and “Commercial name” and their links; and
d) Add information in the certificate to enable approval authorities to more easily understand the products the certificate addresses.

Proposal to add a trigger threshold requirement and to modify the sampling rate, deceleration limit and data selection criteria for category B brake-assist systems.

Status of the draft text to introduce provisions for tyre rolling resistance and snow performance testing into the global technical regulation on tyres.

Proposal to extend the possibility of actuating the service braking system to vehicles of categories M2 and N2 below 5t.

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 correct the code 19 rim diameter. The value of the rim diameter is calculated by multiplying the rim diameter code by 25.4 and rounding to the nearest integer. For the code 19 rim, the value should be 483 (482.6 rounded).

Revised proposal by Italy to introduce requirements for the approval of replacement brake discs for L-category (motorcycle and related) vehicles pursuant to comments received at the September 2014 GRRF session.

Proposal to align the text with the provisions for anti-lock braking systems used in other regulations. The proposal clarifies the limits on the use of any temporary ABS deactivation switch and prohibition against permanent disabling of ABS if fitted on a motorcycle.

Proposal to introduce a new Annex 7: “Special provisions for the powering of trailer steering systems from the towing vehicle” and otherwise amend the regulation to enable the approval of such trailer steering systems which the current text prohibits.

Proposal to include three-wheeled category l vehicles within the scope of ABS testing under UN R78. This would align the scope with EU Directive 93/14/EEC.

Proposal to align the text with the provisions for anti-lock braking systems used in other regulations, including specific exemptions for certain off-road vehicles as incorporated in UN Regulation No. 13. The proposal clarifies the limits on the use of any temporary ABS deactivation switch and prohibition against permanent disabling of ABS if fitted on a motorcycle.

Proposal to clarify the electromagnetic compatibility requirements under UN R78 with regard to the application of UN Regulation No. 10.

Proposal by the informal working group on Regulation No. 55 to amend the definition of Class S couplings.

Proposal draft by the informal group on UN Regulation No. 55 to update this regulation with respect to:
a) Requirements on remote indication;
b) Availability of information on coupling fixing points for A50X couplings;
c) On lateral strength of drawbars; and
d) a new class definition for fully automatic drawbar couplings.

Proposal to introduce amendments to the test procedure and installation requirements of couplings belonging to classes K and L.

Proposal from Germany to introduce a new Annex 23 into UN Regulation No. 13 covering special additional requirements for trailers of category O2 without pneumatic connections and equipped with service braking systems with pneumatic energy storage devices. In addition, the document proposes to further amend braking requirements for trailers under Regulation No. 13 and 13-H to address these new braking systems.

Proposals by Germany and the Netherlands to clarify trailer requirements under UN Regulation Nos. 13 and 13-H, including the removal of design restrictions that prevent the use of electro-hydraulic and electro-pneumatic braking systems.

Text prepared by the International Organization of Automobile Manufacturers (OICA) proposing to amend the Introduction of the regulation to highlight technical issues related to the installation of AEBS on some specific vehicles included in the scope of the regulation.

Proposal to amend the tyre dimensional requirements of UN Regulation No. 30.

Proposal to amend the requirements for the load/speed performance test of UN Regulation No. 30.

Proposal to:
a) Align definitions and content with the other tyre regulations (UN Regulations Nos. 117, 54, 75 etc.);
b) Include a definition of “manufacturer” extracted from the resolution “R.E.3”;
c) Adopt a common definition and use of the terms “Manufacturer’s name”, “Brand name”, “Trademark”, “Trade description” and “Commercial name” and their links; and
d) Add information in the certificate to enable approval authorities to more easily understand the products the certificate addresses.

Proposal to modify the marking requirements to replace PSI with kilopascals (“kPa”). The intent is to harmonize the pressure indication and avoid confusion between UN Regulation No. 54 and US FMVSS 119 or FMVSS 139.

Proposal to change the measurement units for drum speed from min^-1 to km.h^-1 in alignment with the requirements with other tyre regulations. The proposed text also aligns wording in Annex 7, Appendix 1 with the text of the Regulation.

Proposal to amend the tyre dimension requirements. The current rules for calculating the dimensional limits are not consistent among the UN Regulations for tyres and within the Regulations themselves. Hence they lead to uncertainty in the correct calculation. The current proposal aims at unifying the calculation rules to those used in ISO 4000-1 and all major tyre standards, e.g. ETRTO, Tyre & Rim Association (T&RA), Japan Automobile Tyre Manufacturers Association (JATMA).

Proposal to:
a) Align definitions and content with the other tyre regulations (UN Regulations Nos. 30, 117, 75 etc.);
b) Include a definition of “manufacturer” extracted from the resolution “R.E.3”;
c) Adopt a common definition and use of the terms “Manufacturer’s name”, “Brand name”, “Trademark”, “Trade description” and “Commercial name” and their links; and
d) Add information in the certificate to enable approval authorities to more easily understand the products the certificate addresses.

Proposal to amend the tyre dimension requirements. The current rules for calculating the dimensional limits are not consistent among the UN Regulations for tyres and within the Regulations themselves. Hence they lead to uncertainty in the correct calculation. The current proposal aims at unifying the calculation rules to those used in ISO 4000-1 and all major tyre standards, e.g. ETRTO, Tyre & Rim Association (T&RA), Japan Automobile Tyre Manufacturers Association (JATMA).

Proposal to align UN R106 with international standards (ETRTO, T&RA and ISO 4351-2 table 2) with regard to Improved Flexion (IF) tyres and Very high Flexion (VF) tyres. This proposal also clarifies the application of EC Regulation 167/2013 which refers to UN R106.

Proposal to change the measurement units for drum speed from min^-1 to km.h^-1 in alignment with the requirements with other tyre regulations. The proposed text also aligns wording in Annex 7, Appendix 1 with the text of the Regulation. The proposal also corrects a reference to para. 3.2.13. of the Regulation and an incorrect boundary value of load index.

Proposal to:
a) Align definitions and content with the other tyre regulations (UN Regulations Nos. 30, 54, 75 etc.);
b) Include a definition of “manufacturer” extracted from the resolution “R.E.3”;
c) Adopt a common definition and use of the terms “Manufacturer’s name”, “Brand name”, “Trademark”, “Trade description” and “Commercial name” and their links; and
d) Add information in the certificate to enable approval authorities to more easily understand the products the certificate addresses.

In the framework of the International Whole Vehicle Type Approval (IWVTA) discussion, it was agreed to split Regulation No. 13-H into three distinct Regulations: on Braking, on Brake Assist Systems (BAS) and on Electronic Stability Control (ESC). In order to complete this task and to ease the implementation work of Contracting Parties relying on the existing text of the Regulation to mandate BAS or ESC, new transitional provisions are proposed.

Proposal to clarify and align the wording of Regulations Nos. 79, 13-H and 13.

The current text of Annex 3 of UN Regulation No. 79 covers requirements to be met in case the braking and the steering systems have the same energy source (paragraph 5.3.1.4.), and the same energy supply (paragraph 5.3.1.5.). However these requirements are not aligned with those of Regulation No. 13-H. Paragraph 1.1.2. of Annex 4 to Regulation No. 13-H requires the capacity of a certain number of sudden stops after the energy source failed ONLY in the case where the secondary braking performances cannot be met without energy assisting the muscular energy: see paragraph 1.1.2.

The current text of Annex 3 of Regulation No. 79 covers requirements to be met in case the braking and the steering systems have the same energy source (paragraph 5.3.1.4), and the same energy supply (paragraph 5.3.1.5.). However these requirements are not aligned with those of Regulation No. 13. Paragraph 1.1.3. of Annex 7 to Regulation No. 13 requires the capacity for the system of a certain number of sudden stops, after the energy source failed, ONLY in the case where the secondary braking performances cannot be met without energy assisting the muscular energy: see paragraph 1.1.3.

The current text of the provisions in Regulation No. 79 could be interpreted as the required number of sudden stops that must be achieved irrespective of the service braking design, i.e. even in the case of assisted braking system.

Text prepared by the experts of the International Organization of Automobile Manufacturers (OICA) to insert a new Introduction to the regulation in order to highlight technical issues related to the installation of LDWS on some specific vehicles included in the scope of the regulation.