Proposal to amend UN R160 definitions and event recording requirements:

• Amend definitions 2.8., 2.10., and 2.11. regarding Automatically Commanded Steering Function categories A, B1, and C,
• Amend definition 2.18. on “End of event time”,
• Amend definition 2.20. on “Engine throttle, percent full”,
• Delete definition 2.25.,
• Amend definition 2.35. on “Non-volatile memory”,
• Amend definition 2.45. on “Service brake status”,
• Amend definition 2.51. on “Time interval between current event and previous event”,
• Amend definition 2.65. on “VRU secondary safety system”,
• Insert new definitions 2.71. through 2.83.,
• Renumber para. 2.2. as 2.25.,
• Amend para. 5.3.1. to establish trigger conditions for planar, VRU, and rollover events separately from AEBS events with provision for events occurring within 300 ms overlap,
• Amend para. 5.3.1.1. through 5.3.1.5. to specify deployment triggers,
• Add new para. 5.3.1.2. for AEBS emergency braking demand trigger,
• Amend para. 5.3.2. and insert new para. 5.3.2.4. on rollover protection system deployment locking,
• Amend para. 5.3.3. to establish time zero for planar, VRU, and rollover events separately from AEBS events,
• Amend para. 5.4.3. to clarify crash test requirements as UN Regulations 95 and either 94 or 137,
• Amend para. 6.1. on acceleration measurement verification,
• Insert transitional provisions in new paras. 12.12. through 12.16. establishing entry into force of 03 series amendments, non-obligation to accept earlier series approvals as from 1 September 2031, and obligation to continue accepting earlier series approvals until 1 September 2033,
• Amend Annex 4 Table 1 data elements for recording intervals, sample rates, ranges, and new elements including Pre-Event Synchronization Timer, Trigger activated, ACPE, ADDW, DDAW, blind spot monitoring, turn signal, DCAS, emergency stop signal, and TTC.

Document SG-EDR-47-02 and SG-EDR-47-03 were discussed. The group agreed to include definitions 2.8, 2.10, 2.11, and 2.20 with edits. Proposed definitions will be circulated by June 15 for review with comments due June 26. For data elements, disagreements on frequency rates between contracting parties and industry remain in square brackets. EDR for ADS will be addressed under GRVA and the ADS IWG. An October in-person meeting in Berlin is planned, pending WP.29 direction on integrating DSSAD into the ADS IWG.

Proposal to amend Annex 4 Table 1 to modify the Vulnerable road user secondary safety system warning indicator status data element to record interval -1.1 to 0 sec, modify the VRU Accident emergency call system status data element to recording interval 0-300 ms or 0 to end of event time plus 30 ms whichever is shorter, add Advanced driver distraction warning (ADDW) status as mandatory with On and Off values for Planar, VRU, Rollover, and AEBS events, add ADDW time since warning issued as mandatory with 0 to 240 sec range and +/-1% accuracy at 1 sec resolution, add Driver control assistance system driver monitoring system time since disengagement warning issued as mandatory with 0 to 1000 sec or 0 to 240 sec range and +/-1% accuracy at 1 sec resolution, add Driver drowsiness and attention warning (DDAW) status as mandatory with On and Off values for Planar, VRU, Rollover, and AEBS events, and add DDAW time since warning issued as mandatory with 0 to 60 min or 0 to 600 seconds range, +/-1% accuracy, and 1 min or 1 sec resolution.

The IWG RD-ASEP Informal Group is developing a mandatory test procedure for UN R51 to assess vehicle noise emission compliance under conditions other than Annex 3, ensuring no defeat device schemes exist. The Editing Task Force created a consolidated R51.04 draft incorporating Supplements up to Supplement 11, with mandatory random RD-ASEP testing for approval and revised control ranges. R51.04 RD-ASEP expands vehicle speed range to 1-100 km/h, adds vehicle performance criteria, implements random test points, and requires testing for approval. Working document submission is expected September 2027, with expected adoption February 2028.

Proposal to amend UN R51 in the 04 series of amendments based on GRBP-84-07, adding definitions and specifications for Real Driving Additional Sound Emission Provisions applying to vehicles of categories M₁ and N₁, modifying sound measurement methods and test procedures including indoor testing provisions, establishing a sound expectation model for RD-ASEP compliance evaluation, introducing provisions for vehicles equipped with an Automated Driving System, and updating Annexes 3 through 10 and associated appendices with revised test conditions, gear selection flowcharts, temperature and test-track corrections, tyre rolling sound measurement procedures, compressed air noise assessment, and conformity of production checks. No Contracting Party shall refuse to grant type-approvals under the 04 series of amendments from its entry into force until [TBD date], after which approvals under the preceding 03 series may no longer be accepted.

Proposal for Supplement 3 to the original version of UN Regulation No. 172 to amend para. 1.1. to clarify that this Regulation applies to retreaded pneumatic tyres of Classes C1, C2 and C3 with regard to their snow performance and for C2 and C3 tyres with regards to their classification as traction tyre, and insert new para. 1.2. to state that Contracting Parties shall issue or accept approvals to snow performance of retreaded tyres of classes C1, C2 and C3 and/or the classification as traction tyres for retreaded tyres of classes C2 and C3.

Proposal to amend para. 1.1. to clarify that retreaded pneumatic tyres of Classes C₁, C₂ and C₃ are subject to snow performance requirements and C₂ and C₃ tyres to traction tyre classification, and insert new para. 1.2. to establish that Contracting Parties shall issue or accept approvals to snow performance of retreaded tyres of Classes C₁, C₂ and C₃ and/or the classification as traction tyres for retreaded tyres of Classes C₂ and C₃.

Proposal to amend Annex 7, paragraph 3.1, to add provisions allowing discard of test runs when additional operating conditions lead to riding conditions not expected to occur in real traffic such as front wheel lift up, apparent wheel spin, chain slap, or engine lugging, and amend paragraph 3.2.2 to specify that if unusual riding conditions occur during testing, the test shall be performed in the next higher gear and maximum vehicle speed shall be reached at line BB’ instead, thereby ensuring consistency with the 05 and 06 series of UN Regulation No. 41.