Proposal to establish a uniform CoP inspection questionnaire to harmonize conformity of production administrative requirements across Contracting Parties under UN R90. The intent is to increase efficiency and lower costs due to the absence of mutual recognition of CoP certifications among approval authorities.

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.

Proposal from the informal group on UN Regulation No. 55 to introduce provisions for coupling applications in multi-vehicle combinations ( e.g. rigid truck + dolly + semi-trailer) presently not addressed by the regulation.

Further refinements from the informal group on UN Regulation No. 55 to introduce provisions for modular vehicle combinations (e.g., rigid truck + semi-trailer + dolly). This proposal concerns a procedure to identify allowable combinations of performance values Dc and V for drawbar coupling equipment.

Quick review of the informal group’s anticipated schedule for completing its work on updating the regulation on mechanical couplings.

One of the outcomes of the work on updating UN R55 was the recognition that agricultural couplings present a set of challenges distinct from other vehicles. Therefore, Germany proposes the establishment of an informal working group to develop a new regulations (UN R55-A) to respond to the specific needs of agricultural vehicle couplings.

Proposal to clarify the provisions for the minimum heights of markings for tyres with nominal rim diameter codes ≥ 20 and nominal section width ≤ 235 and for tyres with nominal rim diameter codes < 20 and nominal section width > 235. In addition, the proposal aligns the table on minimum marking heights to correspond with the related figure by using lowercase letters to denote dimensions in both (currently, the figure uses lowercase, but the table uses uppercase).

Proposal to

1. change measurement units for drum speed in Annex 7 from min^-1 to km.h^-1 to align the requirements with other tyre regulations;
2. correct wording from “speed category symbol” to “speed symbol” (as defined in para. 2.33);
3. correct wording from “load capacity index” to “load index” (as defined in para. 2.32);
4. correct a reference to para. 3.2.13. of the Regulation in Annex 7, Appendix 1;
5. correct a boundary value of load index in Annex 7, Appendix 1;
6. delete in paragraph 2.1 in Annex 7, the possibility to use the 2.0 m drum diameter to perform the endurance test; and
7. align the text of Annex 10 with Annex 7 of UN R117 pursuant to the adoption of Supplement 5 to the 02 series of amendments to that regulation.

Document GRRF/2016/20 proposes to remove certain design restrictions that impede the application of new technologies, especially related to trailer power steering systems and the use of energy from the towing vehicle, including specification of the connector through which electrical energy is supplied in the proposal. Although this proposal was approved in principle at the 80th GRRF session, it was agreed that the proposal would be reviewed at the 81st GRRF to define an open value [X] in paragraph 2.1.1. of Annex 5. It has subsequently been concluded that this change to paragraph 2.1.1. is not needed. Therefore, this proposal removes the change to the paragraph from GRRF/2016/20.

Presentation on French government views on the approval of automated steering at speeds above 10 km/h under UN Regulation No. 79. The principle recommendation is to restrict amendments to UN R79 to lateral vehicle control as speeds above 10 km/h while setting other work on more advanced capabilities (longitudinal + latitudinal, lane change, passing, etc.) for future separate regulations.

Agenda updated to include informal documents submitted through January 29.

Proposal for a new UN Regulation based upon the provisions for tyre-pressure monitoring systems (TPMS) extracted from UN R64 in order to facilitate the application of UN R64 within the International Whole Vehicle Type Approval system. This proposal also seeks to take into account efforts to update US FMVSS requirements for TPMS.

Working draft from the ACSF informal group to enable the approval of automated steering systems intended to operate at speeds greater than 10 km/h presented for information and discussion at the 81st GRRF session.

UN R13 allows for the exemption of certain vehicles from the requirement for electronic stability controls. This proposal seeks to clarify the scope of the exemptions to include any special purpose vehicle with a non-standard chassis. The change was prompted by a modified vehicle where use of ESC was not feasible, but where the current UN R13 language left doubt as to whether the ESC requirement was applicable.

Revised version of document GRRF/2016/4, proposing to extract tyre pressure monitoring systems from UN R64, pursuant to the discussions held during the February 2016 GRRF session.

Revised version of document GRRF/2016/5, proposing a new UN Regulation based upon provisions for tyre pressure monitoring systems extracted from the current UN R64, pursuant to the discussions held during the February 2016 GRRF session.

Revised version of document GRRF/2016/6 pursuant to discussions held during the February 2016 GRRF session proposing to delete provisions for electronic stability and brake-assist systems from UN R13-H as part of their transposition into new stand-alone regulations.

Revised version of document GRRF/2016/7 pursuant to discussions held during the February 2016 GRRF session, proposing a new UN Regulation based upon brake-assist system provisions extracted from UN R13-H.

Revised version of document GRRF/2016/8 pursuant to discussions held during the February 2016 GRRF session, proposing a new UN Regulation comprised of provisions concerning electronic stability control systems extracted from UN R13-H.

Revised version of document GRRF/2016/9 pursuant to discussions held during the February 2016 GRRF session, proposing a new UN Regulation on tire installation for use within the International Whole Vehicle Type Approval system.

UN R90 specifies one minimum shear strength requirement for brake shoe assemblies and one requirement for brake pad assemblies in Regulation No. 90 via a reference to ISO 6312. However, ISO 6312 specifies test methods for hot and cold shear tests. Therefore, GRRF is requested to clarify whether the strength requirements are for both hot and cold shear.

Revised proposal to align UN R78 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. The European Commission prepared this revised proposal in cooperation with Germany, the Netherlands and IMMA. Given the importance of the changes, the proposal includes transitional provisions.

Presentation explaining the proposal to establish requirements for the approval of replacement brake lining assemblies for L-category vehicles.

Information and status report on the European Commission Cooperative ITS Deployment Platform established in 2014 to define the European framework for connected vehicles and on the Commission Decision C(2015) 6943 of 19 October 2015 establishing a High Level Group on the Competitiveness and Sustainable Growth of the Automotive Industry in the European Union (GEAR 2030) with particular attention to the evolution of connected and autonomous vehicles.

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.

One of the outcomes of the work on updating UN R55 was the recognition that agricultural couplings present a set of challenges distinct from other vehicles. This revised proposal takes into account comments received during the February 2016 GRRF session for the establishment of an informal working group to develop a new regulation (UN R55-A) to respond to the specific needs of agricultural vehicle couplings.

Revised version of the proposal, updated by the GRRF secretariat to take into account comments received during the February 2016 GRRF session, for a revised new UN Regulation based on the provisions for tyre-pressure monitoring systems (TPMS) extracted from UN R64 in order to facilitate the application of UN R64 within the International Whole Vehicle Type Approval system. This proposal also seeks to take into account efforts to update US FMVSS requirements for TPMS.

UN R13 allows for the exemption of certain vehicles from the requirement for electronic stability controls. This proposal seeks to clarify the scope of the exemptions to include any special purpose vehicle with a non-standard chassis. The change was prompted by a modified vehicle where use of ESC was not feasible, but where the current UN R13 language left doubt as to whether the ESC requirement was applicable. This revised proposal takes into account comments received during the February 2016 GRRF session.

Revised proposal to align UN R78 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. This revised proposal takes into account comments received during the February 2016 GRRF session.

The previous GRRF session considered a 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. CLEPA has provided this presentation to clarify the background behind the BAS provisions and facilitate further discussion.

Technical services have reported difficulties in interpreting the requirements and procedures incorporated in the 02 series of amendments to UN R90. Therefore, this submission proposes a special interest group to consider whether an informal working group may be needed to revised UN 92.02.

Revised 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.

Revised proposal, based on document GRRF/2016/38 and revising GRRF-82-24, to:
a) Align definitions and contents of paragraphs with the other tyre regulations (UN R30, R54, R117, 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;
d) Clarify which markings shall be moulded on both sidewalls of the tyre; and those which shall be moulded on one sidewall only;
e) Add information in the certificate to clarify the relationship with the certified products;
f) Align definitions with Regulation EU 167/2013 which defines vehicles in category S as “interchangeable towed equipment” and includes tread patterns for ‘implement traction tyres’ that consist of blocks rather than lugs or cleats;
g) Eliminate redundant marking requirements;
h) Clarify the inflation pressure to be used for measurements and tests and related tyre markings;
i) Align the current rules for calculating the dimensional limits in accordance with ISO, all major tyre standards, and as proposed for UN R30, R54, and R75.

The proposal is aimed at ensuring that the English and Russian texts are equivalent. In the English text, which is the original, in paragraph 2.2.27 of Annex 12 the word “travel” is used. The corresponding word in Russian language should be “ход”. The original text was mistranslated into Russian.

Proposal to clarify paragraph 8.1.2. The paragraph aimed to verify that the compensator can accept a difference of the travel when one brake operates in forward direction and the other in rearward direction with a margin of twenty per cent.

UN R13 allows for the exemption of certain vehicles from the requirement for electronic stability controls. This proposal seeks to clarify the scope of the exemptions to include any special purpose vehicle with a non-standard chassis. The change was prompted by a modified vehicle where use of ESC was not feasible, but where the current UN R13 language left doubt as to whether the ESC requirement was applicable. This revised proposal takes into account comments received during the February 2016 GRRF session.

Proposal from the UN R55 informal group to allow the fitment of a secondary coupling and/or a brake away cable for un-braked O1 trailers or inertia braked trailers up to 3.5t which are equipped with class B coupling heads and class S drawbar eyes (38 mm, 40 mm, and others) and for the related use of integrated towing brackets.

Proposal by the informal working group on Regulation No. 55 concerning vehicle combination applications to introduce:
(a) An amendment for the separation of requirement calculation procedures from the procedure of setting and certifying performance values.
(b) An amendment that adds procedures for requirement calculation for vehicle combinations that have hitherto not been accounted for in the Regulation.

Proposal by the informal working group on Regulation No. 55 and introduces a procedure to identify allowable combinations of performance values DC and V for drawbar coupling equipment.

Proposal by the informal working group on Regulation No. 55 to introduce:
a) Correction of an error in Annex 5, figures 12 and 17;
b) An amendment that concerns identification of worst cases for design assessment;
c) Clarifications on minimum articulation angles.

Proposal to restrict component type-approval for mechanical coupling devices dedicated to category M1 vehicles to use only on such M1 vehicles as are designed to tow trailers.

Proposal to correct paragraph number references due to the recent renumbering of definitions.

Proposal to allow for the case of a tyre designed for a special application that also fulfills the requirements for a snow tyre such that the tyre, at the manufacturers initiative, shall be marked with the inscription M+S or M.S or M&S while remaining in the category of use “special use tyre”. The proposal further adds “test laboratories” in the headline of paragraph 12. as quoted in subparagraph 12.1. in document WP.29/2016/51 as adopted during the June WP.29 session with the aim of harmonizing the tyre regulations.

Correction of the paragraph numbering pursuant to the adoption of Supplement 21 and deletion of a redundant note at the end of paragraph 6.1.5.3.3.

Proposal to clarify the minimum heights for markings for tyres with nominal rim diameter codes ≥ 20 and nominal section width ≤ 235 and for tyres with nominal rim diameter codes < 20 and nominal section width > 235. In addition, the proposal corrects the use of uppercase letters to denote dimensions where lowercase letters had been inserted.

Proposal to:
a) Align some definitions and some contents of paragraphs with the other tyre regulations (Regulations Nos. 30, 54, 117, 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;
d) Clarify the designation of the categories of use;
e) Remove the word “normal” in the definition of “Reinforced” tyre to avoid confusion
with the category of use “normal”;
f) Add some information in the certificate to the attention of the Type Approval
Authorities for making easier the relationship between this one and the products.

Proposal to:
a) Align definitions and contents of paragraphs with the other tyre regulations (UN R30, R54, R117, 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;
d) Clarify which markings shall be moulded on both sidewalls of the tyre; and those which shall be moulded on one sidewall only;
e) Add information in the certificate to clarify the relationship with the certified products;
f) Align definitions with Regulation EU 167/2013 which defines vehicles in category S as “interchangeable towed equipment” and includes tread patterns for ‘implement traction tyres’ that consist of blocks rather than lugs or cleats;
g) Eliminate redundant marking requirements;
h) Clarify the inflation pressure to be used for measurements and tests and related tyre markings;
i) Align the current rules for calculating the dimensional limits in accordance with ISO, all major tyre standards, and as proposed for UN R30, R54, and R75.

Proposal to amend Annex 5 with regard to Improved Flexion (IF) tyres and Very high Flexion (VF) tyres.

Proposal to amend Annex 7 (based on the documents ECE/TRANS/WP.29/GRRF/2015/39 and GRRF-80-16 from Slovakia) and Annex 10. This proposal would:

1. change measurement units for drum speed in Annex 7 from min-1 to km.h-1 to align the requirements with other tyre regulations;
2. correct the wording from “speed category symbol” to “speed symbol” (as defined in para. 2.33);
3. correct the wording from “load capacity index” to “load index” (as defined in para. 2.32);
4. correct a reference to para. 3.2.13. of the Regulation in Annex 7, Appendix 1;
5. correct a boundary value of load index in Annex 7, Appendix 1;
6. delete in paragraph 2.1 in Annex 7, the possibility to use the 2.0 m drum diameter to perform the endurance test.

In Annex 10, the proposal aligns the text with Annex 7 of UN R117, 02 series of amendments, Supplement 5.

Proposal to clarify provisions for the minimum heights for markings for tyres with nominal rim diameter codes ≥ 20 and nominal section width ≤ 235 and for tyres with nominal rim diameter codes < 20 and nominal section width > 235. The proposal also corrects tables and figures for the use of lowercase letter to denote tyre dimension specifications.

Proposal to correct the text where the word “tyres” was inadvertently omitted from Paragraph 2.1.

Proposal for minor editorial corrections to the text.

Proposal for a minor editorial correction to the text. Paragraph 4.8. should read “Annex 2 to this Regulation gives an example of approval marks.” The current text refers to “examples” where there is only one provided.

Proposal to introduce technical requirements for Corrective Steering Functions (lane departure prevention, lane-keeping assistance (LKAS), steering angle correction, etc.) as defined in the regulation. The proposal offers four options to ensure appropriate approvals of LKAS and related CSF systems until such time as more precise requirements can be defined:

• Option 1 and option 2: Not to grant any type approvals for corrective steering functions until detailed technical requirements for CSF are incorporated into this Regulation.
• Option 3: Amend the definition of CSF as proposed in this document.
• Option 4: Amend the definition of corrective steering functions and to include technical requirements for LKAS as an ASCF of Category B1 as proposed in this document.

Regulation No. 106 contains standardized tyre sizes which often need to be updated in line with technical progress. In order to accelerate the update process of the Regulation and limit the number of amendments, it is proposed to establish a new Resolution on standardized sizes and to refer to this Resolution in Annex 5.

Proposal to remove the technical content in Annex 5. This content would be incorporated into a new Resolution on Tyre Sizes as proposed in document GRRF/2016/46.

Explanation of proposals from the informal working group for corrections, restructuring, and amendments to UN R55.

UN R13 allows for the exemption of certain vehicles from the requirement for electronic stability controls. This proposal seeks to clarify the scope of the exemptions to include any special purpose vehicle with a non-standard chassis. The change was prompted by a modified vehicle where use of ESC was not feasible, but where the current UN R13 language left doubt as to whether the ESC requirement was applicable. This revised proposal takes into account comments received during the February 2016 GRRF session.

Request for authorization to develop amendments to GTR No. 3 in order to:

1. align GTR 3 with Supplement 3 to the 03 series of amendments to UN Regulation No. 78 adopted at June 169/WP.29 (electromagnetic compatibility requirements for ABS, application of ABS provisions to three-wheelers, installation of emergency stop signal) and
2. clarify the possibility to install a means to disable the ABS function (‘ABS Switch’) under certain conditions.

Comments concerning failure modes in the event of a separation of the main coupling between a vehicle and a towed trailer in order to enable the trailer to be guided and/or stopped automatically.

Proposal for amendments to the draft 04 series of amendments to Regulation No. 78. The draft 04 series proposes to align UN R78 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.

FIA comments on data privacy provisions under UN Regulations including remarks concerning the work of the informal groups on automated driving (ITS/AD), automatic emergency calls systems (AECS), and automatically commanded steering functions (ACSF). The presentation covers issues such as protection of personal data, aggregation of data to protect individual identities, protection against unauthorized access (hacking), and prohibition against data use for purposes other than those specifically intended by a regulation. FIA proposes the deletion of data storage (DSSA) provisions under the draft texts for ACSF.

Proposal to amend “option 4” as presented in the proposal introduce technical requirements for Corrective Steering Functions under UN R79 (document GRRF/2016/45). Option 4 for consideration by GRRF proposes to amend the definition of corrective steering functions and to include technical requirements for LKAS as an ASCF of Category B1. The proposal includes:

• Clarification of Corrective steering function (CSF) incl. defining of new requirements;
• Establishment of new categories for automatically commanded steering function (ACSF): Categories A, B1, B2, C, D and E;
• Wording for requirements of Category A (incl. remote parking RCP), and Category B1.

Proposal of amendments to the draft proposal concerning technical requirements for automated steering functions operating at speeds up to 10 km/h and for corrective steering functions under UN R79.

Proposal, consolidating document GRRF-82-08 with the proposed test procedures, revising “option 4” as presented in the proposal introduce technical requirements for Corrective Steering Functions under UN R79 (document GRRF/2016/45). Option 4 proposes to amend the definition of corrective steering functions and to include technical requirements for LKAS as an ASCF of Category B1. The proposal includes:

• Clarification of Corrective steering function (CSF) incl. defining of new requirements;
• Establishment of new categories for automatically commanded steering function (ACSF): Categories A, B1, B2, C, D and E;
• Wording for requirements of Category A (incl. remote parking RCP), and Category B1.

During its 8th meeting (Stockholm), the ACSF informal group decided that all functions to “assist the avoidance of a collision” would be excluded from the definition of “Corrective Steering Function”. ACSF decided to establish a new definition for “Emergency Steering Functions (ESF)” with specific requirements. The intention was to draft this definition during a second phase effort through which requirements for ACSF categories beyond B1 will be established. In order to enable the approval of ESF systems critical to road safety, OICA has prepared this proposal for an ESF definition and simple requirements based upon provisions for Complex Electronics (CEL) in Annex 6. A footnote has also been added to define the specific conditions for the approval of these systems, until uniform provisions are defined by the ACSF informal group.

In order to enhance the safety of B1 corrective steering functions (by reducing the probability of driver over-reliance and misunderstanding of system limitations), OICA proposes a minimum value of 0.8 m/s² for maximum lateral acceleration in place of the draft 1 m/s² for the speed range between 100-130 km/h for M1 and N1 vehicles. OICA believes that this would ensure that a system is capable under all conditions of generating the required minimum acceleration.

Proposed changes to the draft amendments to UN R79 concerning ACSF B1 systems. The proposed new wording for the triggering condition of the warning (“any front tyre of the vehicle is crossing the lane marking”) is technically more specific than the original (“the vehicle is going to leave the lane”). The use of a haptic signal as an alternative to the acoustic signal achieves the goal pursued by Germany. This proposal is consistent with the warning strategy of AEBS specified in UN R131. In the case of M2 M3 N2 N3 vehicle categories, it is proposed to take as a base the requirements specified in UN R130 LDWS regulation, which achieves the goal.

Explanatory presentation on document GRRF-82-08.

Proposal to amend the annex on complex electronic systems, in particular, to require auditing of the methodologies used to ensure system safety at both concept and system level. Concept level specifically requires consideration of interaction with other vehicle systems.

Proposal of updated objectives and timelines for the work of the ACSF informal group.

Updated proposal to correct paragraph number references due to the recent renumbering of definitions based on document GRRF/2016/33.

Revised proposal to correct the paragraph numbering pursuant to the adoption of Supplement 21 and delete a redundant note at the end of paragraph 6.1.5.3.3, based on document GRRF/2016/35.

Revised proposal, based on document GRRF/2016/38, to:
a) Align definitions and contents of paragraphs with the other tyre regulations (UN R30, R54, R117, 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;
d) Clarify which markings shall be moulded on both sidewalls of the tyre; and those which shall be moulded on one sidewall only;
e) Add information in the certificate to clarify the relationship with the certified products;
f) Align definitions with Regulation EU 167/2013 which defines vehicles in category S as “interchangeable towed equipment” and includes tread patterns for ‘implement traction tyres’ that consist of blocks rather than lugs or cleats;
g) Eliminate redundant marking requirements;
h) Clarify the inflation pressure to be used for measurements and tests and related tyre markings;
i) Align the current rules for calculating the dimensional limits in accordance with ISO, all major tyre standards, and as proposed for UN R30, R54, and R75.

Proposal to amend the consolidated draft amendment to UN R79 to introduce technical requirements for Corrective Steering Functions and Level B1 ACSF under UN R79 (document GRRF/2016/45).

Updated version of the draft amendment to introduce provisions for corrective steering and Category B1 ACSF into UN R79 based upon discussions held during the afternoon GRRF session of 21 September.

Updated version of the proposal to introduce corrective steering and B1 level ACSF provisions into UN R79 prepared pursuant to discussions held among interested parties following the afternoon GRRF session on 21 September.

Corrections to the proposal by the informal working group on Regulation No. 55 concerning vehicle combination applications to introduce:
(a) An amendment for the separation of requirement calculation procedures from the procedure of setting and certifying performance values.
(b) An amendment that adds procedures for requirement calculation for vehicle combinations that have hitherto not been accounted for in the Regulation.

Revised proposal superseding document GRRF/2016/31. Proposals in GRRF/2016/31 to regulate the articulation angles of couplings as installed have been removed. The informal group on UN R55 could not reach agreement on this subject. As a result, this revised proposal by the informal working group on Regulation No. 55:
a) Corrects an error in Annex 5, figures 12 and 17; and
b) Introduces an amendment concerning identification of worst cases for design assessment.

Updated version of the proposal to introduce corrective steering and B1 level ACSF provisions into UN R79 as agreed by the GRRF during its September 2016 session.

Updated terms of reference for the automated steering informal group as agreed during the September 2016 GRRF session.

Presentation concerning the inability to test O₃ recreation vehicle trailers equipped with electric braking systems for type approval certification under UN R13.

Amendment to the proposal from the UN R55 informal group to allow the fitment of a secondary coupling and/or a brake away cable for un-braked O1 trailers or inertia braked trailers up to 3.5t which are equipped with class B coupling heads and class S drawbar eyes (38 mm, 40 mm, and others) and for the related use of integrated towing brackets.

Overview of special interest group discussions on replacement brake discs and drums, as well as on replacement brake pads and calipers (especially remanufactured).

Presentation on trial runs of the proposed test procedures for evaluating automated steering systems under UN R79.

Proposal to add specifications for tyre sizes 33×11.50R20LT, 35×11.50R17LT, 37×13.50R26LT, 36×15.50R20LT and 40×15.50R26LT.

Regulation No. 106 contains standardized tyre sizes which often need to be updated in line with technological progress. In order to accelerate the update process of the Regulation and limit the number of amendments, it is proposed to insert in a new Resolution the newly standardized sizes and to refer to this Resolution in Annex 5. As a temporary solution to assess the effectiveness of such proposal, the Annex 5 of Regulation No. 106 will be kept as it is with no further updates. After a trial period of approximately two years and upon confirmation of effectiveness, the complete Annex 5 of Regulation No. 106 would be transferred to this Resolution on Tyre Sizes.

Proposal to correct a type in Annex 7- Appendix 2, Part 2, Paragraph 5 where the snow group index should read “1.00”, not “100” as appeared erroneously in the adopted text.

Proposal to amend the annex on complex electronic systems, in particular, to require auditing of the methodologies used to ensure system safety at both concept and system level. Concept level specifically requires consideration of interaction with other vehicle systems.

Proposal to:

1. Align definitions and contents of paragraphs with the other tyre regulations (UN R30, R54, R117, etc.);
2. Include a definition of “Manufacturer” extracted from the resolution “R.E.3”;
3. Adopt a common definition and use of the terms “Manufacturer’s name”," Brand name", “Trademark”, “Trade description” and “Commercial name” and their links;
4. Clarify which markings shall be moulded on both sidewalls of the tyre; and those which shall be moulded on one sidewall only;
5. Add information in the certificate to clarify the relationship with the certified products;
6. Align definitions with Regulation EU 167/2013 which defines vehicles in category S as “interchangeable towed equipment” and includes tread patterns for ‘implement traction tyres’ that consist of blocks rather than lugs or cleats;
7. Eliminate redundant marking requirements with the requirement for “@kPa” markings effective from 1 September 2017;
8. Clarify the inflation pressure to be used for measurements and tests and related tyre markings;
9. Align the current rules for calculating the dimensional limits in accordance with ISO, all major tyre standards, and as proposed for UN R30, R54, and R75;

Proposal to delete a redundant requirement. The paragraphs 2.2. and 2.2.1. are superfluous since paragraph 5.2.2.13. already requires all O4 trailers to be equipped with Anti-lock Braking Systems (ABS) of Category A.

UN R55 informal group proposal for:

1. An amendment for the separation of the procedures to verify towable mass from the procedure of setting and certifying performance values;
2. An amendment that adds procedures to verify towable mass for vehicle combinations that have hitherto not been accounted for in the Regulation;
3. Amendments that adds integrated fixing points for secondary couplings;
4. An amendment that clarifies the procedure to identify worst cases for certification testing;
5. Amendments that removes typos in the current Regulation.

Regulation No. 106 contains standardized tyre sizes, which often need to be updated, following the technical progress. In order to accelerate the update process of the Regulation and limit the number of amendments, it is proposed to insert in a new Resolution the standardized sizes and to refer to this Resolution in Annex 5. As a temporary solution to assess the effectiveness of such proposal, the Annex 5 of Regulation No. 106 will be kept as it is with no further updates. After a trial period of approximately two years and upon confirmation of effectiveness, the complete Annex 5 of Regulation No. 106 would be transferred to this Resolution on Tyre Sizes.