Results of the review of proposals for UN Regulations R28, R51, R64, R138, R141, R142, and R165 regarding autonomous vehicle readiness. Key findings include: inconsistent Mass in Running Order definitions between R51 and R138 versus RE3; unclear special testing provisions in R64, R138, and R165; need for clarification on ADS optical and logical signal transition in R64; redundant full definitions from RE3 in multiple proposals should reference RE3 via footnote instead; inconsistent ADS activity terminology across R64, R141, and R165 should be standardized; incorrect Category Y references in R51 Table 2; and definition and spelling errors in R51, R138, R141, and R165.

Proposal to amend paragraph 1, footnote 1, insert new paragraphs 2.23. to 2.26. defining Automated Driving System, Dynamic Driving Task, Category X vehicles, and Category Y vehicles, amend paragraph 4.4.1., footnote 2, amend section 5.2.3. to add requirements for vehicles equipped with an ADS and exclude speed warning label requirements for vehicles of categories X and Y, amend Annex 1, footnote 4, insert new item 6.2. regarding ADS equipment, insert new paragraph 2.2. in Annex 2 Section I regarding ADS equipment, and insert new paragraph 4.2. in the Addendum to communication form regarding brief description of the ADS if fitted.

A version with tracked changes is also available.

Proposal to enable application of the Regulation to vehicles equipped with Automated Driving Systems (ADS).

The Task Force on Automated Vehicle Regulation Screening held its 18th session on 2 October 2025. The agendas and reports of the 17th session were adopted. Regarding a proposal for a supplement to Regulation No. 64, the Task Force noted the need to harmonize wording for ignition on/initiation of the powertrain across regulations, discussed corrective action by the ADS, exceptions for vehicles of category X and Y, incorporation of “drive with caution” for vehicles with ADS, and fitting spare units. Regarding a proposal for a supplement to Regulation No. 142, the Task Force considered logical signal requirements and informing the ADS about tyre speed limits. The next meeting is scheduled for 29 November 2025.

Proposal to amend para. 5.2.3.2.2., para. 5.2.3.2.3., para. 5.2.3.2.4., and para. 5.2.3.3. to establish requirements for vehicles of category X and Y equipped with an ADS regarding speed warning labels and information provision to the ADS about speed capacity of fitted tyres, and amend Annex 2 to include provisions for describing the automated driving system and the modes tested with ADS operation.

The Task Force on Automated Vehicle Regulation Screening will hold its 18th session on 2 October 2025 from 09:00 to 11:00 CET via MS Teams. The agenda includes adoption of the agenda and report of the 17th session, consideration of proposals for supplements to Regulation No. 64 and Regulation No. 142, and discussion of next meetings.

Proposal to:

1. Add a generic reference to the Consolidated Resolution on the Construction of Vehicles (R.E.3) in footnote 1
2. Align title of para. 5 with its contents (paras. 5.1. and 5.2.)
Align the title of para. 6 with corresponding paras. in UN R30, 54, 75, 106 and 117
3. Clarify that all temporary use spare units can by composed by using tyres of any category of use
4. Align the snow tyre definition with UN R30, 54 and 117
5. Clarify that tyres for use in severe snow conditions are also applicable to the category of use ‘special use tyres’
6. Clarify which service conditions can apply the coefficient given in paragraphs 5.2.4.3.1. and 5.2.4.3.2.
7. Add Class C3 tyres to the speed category symbol and load capacity index definitions
8. Introduce definitions of free rolling tyre and front axle and revise markings accordingly (ref. documents GRBP-80-03 and GRBP-80-26)
9. Clarify reporting the name of the symbols used for tyre for use in severe snow conditions in line with UN R117 and 164.

Proposal to:

1. Add a generic reference to the Consolidated Resolution on the Construction of Vehicles (R.E.3) in footnote 1
2. Align title of para. 5 with its contents (paras. 5.1. and 5.2.)
Align the title of para. 6 with corresponding paras. in UN R30, 54, 75, 106 and 117</li<
3. Clarify that all temporary use spare units can by composed by using tyres of any category of use
4. Align the snow tyre definition with UN R30, 54 and 117
5. Clarify that tyres for use in severe snow conditions are also applicable to the category of use ‘special use tyres’
6. Clarify which service conditions can apply the coefficient given in paragraphs 5.2.4.3.1. and 5.2.4.3.2.
7. Add Class C3 tyres to the speed category symbol and load capacity index definitions
8. Introduce definitions of free rolling tyre and front axle and revise markings accordingly (ref. documents GRBP-80-03 and GRBP-80-26)
9. Clarify reporting the name of the symbols used for tyre for use in severe snow conditions in line with UN R117 and 164.

The proposal provides a more clear indication by introducing the definition of “Front axle” so that it clarifies the interpretation of front steering axle.

Proposal to clarify that FRT tyres shall not be fitted to front steering and drive axles of motor vehicles.

Proposal for a reference document concerning a general approach for how to handle measurement uncertainties under UN Regulations within the purview of GRBP.

Proposal to align the transitional provisions with those in European Union (EU) Regulation 2019/2144.

Proposal from the TPMSTI task force order to align the transitional provisions in UN Regulation No. 142 with the transitional provisions in European Union (EU) Regulation 2019/2144.

Proposal to align the transitional provisions in UN Regulation No. 142 with the transitional provisions in Regulation (EU) 2019/2144.

Proposal to update the whole vehicle approval requirements to the latest series of amendments and to add the WLTP emissions cycle (UN R154). The update would also reflect the separation of UN R116 into three regulations respectively covering vehicle locking systems, alarm systems, and immobilizers.

Informal group corrections to the transitional provisions in document GRBP/2021/11.

Proposal to align with the provisions of European Union Regulation 2019/2144 and to introduce the tyre installation requirements for all vehicle categories.

Based on GRBP/2020/19 with text to be confirmed in square brackets.

The text has been prepared by the experts of the Task Force on Tyre Pressure Monitoring System and Tyre Installation (TF TPMSTI) in order to align with the provisions of European Union Regulation 2019/2144 and to introduce the tyre installation requirements for all vehicle categories

Text update pursuant to discussions during the 5th TMPSTI task force session.

Task force secretary’s update including input from European Commission (DG Grow) and Japan.

Second-day session focused on UN R142.

Revised proposal pursuant to the first TPMSTI task force session to introduce TPMS provisions for tyre installation on category M₂, M₃, N₂, N₃, O₃ and O₄ vehicles.

Proposal to introduce tyre-pressure monitoring system tyre installation requirements for all vehicle categories in Regulation (EU) 2019/2144 following the requirements in UNECE Regulation No. 142.

Proposal from expert from France for amendment to Supplement 1. Tyre pressure monitoring system (TPMS) could refer to UN R64 (till 02 series of amendment) and/or R141.
R64 series 02 concerns temporary use spare unit, run-flat tyres and/or a run-flat system and/or a tyre pressure monitoring system for M1 or N1 category vehicles. R141 is dedicated M1-category vehicles approved for their TPMS

Proposal to correct references to Regulations Nos. 30 and 54 following renumbering of paragraphs in these regulations.

Proposal as approved by GRRF during its 84th session to correct references to paragraphs in Regulations Nos. 30 and 54 which need updating pursuant to renumbering in the source regulations.

Proposal to correct references to paragraphs in Regulations Nos. 30 and 54 which have to be updated pursuant to renumbering in the source regulations.

Proposal for minor editorial corrections to the text.

Proposal for a new UN Regulation on tire installation for use within the International Whole Vehicle Type Approval system.

Review of work towards adapting and/or approving certain UN Regulations for use within the International Whole Vehicle Type Approval regulation.

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.

Proposed text for a new regulation on tire installation for use within the International Whole Vehicle Type Approval system.

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.

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

A new regulation on tire installation has been prepared for use within the International Whole Vehicle Type Approval system. Pursuant to discussions among stakeholders, this proposal amends the scope of the draft regulation (especially in order to avoid redundant approval requirements across regulations) and clarifies the run-flat tyre requirements.

Proposal to clarify the inflated run-flat tyres are within the scope of this regulation while uninflated run-flat tyres fall exclusively under UN R64 and to remove references to UN R64 since this regulation and UN R64 exist as independent parallel tyre regulations. The proposal seeks to improve the wording, including to align more closely with EU Regulation (458/2011).

Amendments to the draft new regulation for the approval to tires installed on a vehicle in order to avoid overlap with UN R64 on spare tires.

Proposal for a new regulation for the approval to tires installed on a vehicle. This regulations is proposed for use within the International Whole Vehicle Type Approval system in order to ensure proper tire fitment on a vehicle under IWVTA evaluation. This document supersedes GRRF-75-20.

Proposal for a new regulation for the approval to tires installed on a vehicle. This regulations is proposed for use within the International Whole Vehicle Type Approval system in order to ensure proper tire fitment on a vehicle under IWVTA evaluation.