Initial draft for a proposal to make the requirements of UN R51 fit for the approval of vehicles equipped with Automated Driving Systems.

Guidelines for submission to the September 2025 GRBP session.

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.

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.

Proposal to modify para. 2.13. to define “Run-Flat Warning System” to deliver information to the driver or the ADS, modify para. 5.1.6.1. to require optical yellow warning signals to the driver and logical signals to the ADS when an ADS feature is active, modify para. 5.1.6.3. to require warnings indicated to the ADS by logical signal when an ADS feature is active, modify para. 5.1.6.4. to require logical signals to the ADS for electrical failure or sensor anomaly when an ADS feature is active, modify para. 5.1.6.5. to require description in the owner’s manual of corrective action expected by the ADS, modify para. 5.1.7. to exempt vehicles of categories X and Y from inflation device requirements, modify para. 6.1.2.2. to require instructions on informing the ADS of temporary-use spare unit fitting, modify Annex 3 para. 2.2. and 2.3. to apply special provisions for ADS vehicles, modify Annex 4 paras. 2.1. and 2.2. to apply special provisions for ADS vehicles, and add Annex 5 specifying test adaptations for ADS vehicles.