Proposal from the ADAS task force to extend the provisions clarifying the scope between this Regulation and UN R171 for the ACSF categories B1, B2, C, D, E to ACSF category A.

Proposal to remove the draft provisions concerning the approval of stability performance under UN R13 and UN R140 for ADS vehicles via demonstration under the safety case provisions of the forthcoming UN Regulation on ADS, and to remove bracket unintentionally retained in the original submission.

The e-Trailer Industry Group reports on discussions regarding electrically propelled and recuperating trailers. ISO 11992-2 Edition 4 is not safely implementable due to incompatibility with current UN regulations, missing PGNs, and risks of malfunction. ISO/TC 22/SC 31/WG 4 launched Edition 5, targeting publication in early 2027. Amendments to UN R13 and UN R100 are being developed in phases, with Phase 1 addressing trailer dynamo function and Phase 2 addressing e-axle trailers. Two workshops with Contracting Parties are planned to establish shared understanding and develop concrete parameter extensions for amending UN Regulations.

Proposal to require the approval authority to upload information received from the manufacturer concerning remedial action(s) addressing an ALKS design to the DETA platform and to clarify the use of DETA with regard to ALKS approved under UN R157.

Proposal to reinstate the obligation for the granting approval authority to inform the approval authority of each of each Contracting Party in whose territory the manufacturer intends to deploy the ALKS pending approval before granting the approval (according to Annex 1–Appendix 2).

Proposal to increase the usability and safety of the ELKS and to align the technical requirements with technological progress:

• Ensure that an ELKS is not adversely affected by magnetic or electrical fields
• Clarify when the system shall automatically deactivate to prevent unintended consequences, which should be at least detailed in the vehicle’s operating instructions as a minimum
• Include dashed lane markings for CDCF and road edges for ELKS, ensuring all systems fitted meet the highest safety standards and utilise the latest technology to prevent unintended lane departures 1
• Include the latest lane markings located in Annex 3 to UN Regulation 130. This is important as the 01 series of amendments to UN Regulation 130
  includes Australian lane markings, ensuring compatibility
• Eliminate the option for an acoustic warning for LDWS to reduce confusion with the CDCF intervention acoustic warning required in paragraph 6.6.4.
• Correct minor grammatical errors
• Enhance usability by establishing system response limits, where recent research has highlighted the prevalence of consumers turning these lifesaving systems off
• Ensure consistent and repeatable testing.

The draft document identifies potential research questions for ACPE (Acceleration Control for Pedal Error) systems across three categories: basic data collection on system specifications and cost-benefit analysis; performance requirements and test procedures; and human factors analysis. Research priorities include surveying existing ACPE technologies, analyzing accident data and system costs, establishing control philosophy, defining triggering conditions, and investigating pedal misapplication.

The Informal Working Group on Advanced Emergency Braking System held its first session on 22 April 2026. Focus was confirmed on passenger cars of category M₁ and light vehicles under UN Regulation 152, with heavy vehicles explicitly excluded. The group’s Terms of Reference outline five core tasks. A meeting timeline from April 2026 to September 2028 was proposed, with delivery of an amendments proposal on UN Regulation 152 by September 2028. The co-Chairs called for accidentology data from all Contracting Parties.

Proposal to amend UN R157, including Annex 4, paragraph 3.5.4, requiring manufacturers to monitor safety-relevant incidents and report critical incidents to type-approval authorities, a new paragraph 3.5.4.1 to require approval authorities to upload remedial action information to the DETA database within 14 days, and a new Annex 7 to provide guidance for authorities on using DETA to exchange incident information.

Proposal to enable application to ADS vehicles:

• Amend the introductory text,
• Delete para. 1.2.4.,
• Amend paras. 2.3., 2.3.2., 2.3.4., 2.5.1.1.3., 2.15., 2.16., 4.4.3., 5.1.1., 5.1.2., 5.1.5., 5.4., 5.6.1., 5.6.1.2.9., 5.7.1., 5.8., 5.8.3., 6.1.4., 6.2., Annex 1 para. 5.6., Annex 4 para. 2.3.1., Annex 7 paras. 2.1.2. and 3.5.,
• Insert new paras. 2.5.1.1.4., 3.2.4., 5.1.1.1.–5.1.1.3., 5.5.3., 5.8.4.–5.8.6.3., 6.2.6.–6.2.9., 12.4.–12.4.7., Annex 1 paras. 5.6.1.–5.6.3., and Annex 3 para. 1.4.,
• Renumber former paras. 12.4. and 12.5.1. as 12.5. and 12.5.1.,
• From entry into force, no refusal of approvals under amended Regulation,
• From 1 September 2027, no obligation to accept prior series approvals first issued after that date,
• Until 1 September 2029, continued acceptance of prior series approvals first issued before that date,
• From 1 September 2029, no obligation to accept prior series approvals,
• Until 1 September 2030, type approvals may be granted for Automated Lane Keeping System vehicles not complying with para. 5.8.

Proposal to amend UN R86 braking and stability control requirements for Automated Driving Systems:

• Delete para. 1.2.5.,
• Amend para. 2.3. to specify that braking system functions are set out in para. 5.1.2.,
• Amend para. 2.5. to clarify transmission definition and composition,
• Amend para. 2.34.2.1. to define directional control as assisting driver or ADS in maintaining intended direction,
• Amend para. 5.1.2.1. to specify service braking system requirements for control and halting,
• Amend para. 5.1.2.2. to specify secondary braking system requirements including graduated action and steering control,
• Amend para. 5.1.2.3. to specify parking braking system requirements and mechanical locking,
• Amend para. 5.1.4.7. to require verification of electronic braking system status,
• Amend para. 5.2.1.2.1. to specify brake control requirements and return-to-off positions,
• Amend para. 5.2.1.2.7.2. to require independent energy reserves and warning devices,
• Amend para. 5.2.1.26.4. to permit parking brake application after powertrain deactivation and automatic application when vehicle stationary or driver leaves seat,
• Amend para. 5.2.1.26.5. to permit warning actuation delay until parking brake clamping detected,
• Amend para. 5.2.1.31. to specify emergency braking signal generation from service braking system application,
• Amend para. 5.2.2.24.6.3. to require pneumatic and electric control lines and automatic brake application for incompatible trailer connections,
• Amend para. 5.3. to introduce special provisions for vehicles equipped with Automated Driving System,
• Amend para. 5.3.3. to require transmission of warnings and detected faults to ADS before feature activation,
• Insert new para. 5.3.4. to permit disabling braking controls while ADS feature active,
• Insert new Annex 4 para. 1.1.3. permitting dedicated activation methods for vehicles of categories X and Y,
• Insert new Annex 4 para. 1.1.4. requiring manual driving mode testing for ADS-equipped vehicles,
• Amend Annex 19 Part 2 para. 1.1.4.1.4. to specify engine control independence from driver or ADS demand,
• Amend Annex 19 Part 2 para. 1.1.4.1.6. to reference driver or ADS selected locking,
• Amend Annex 21 para. 2.1.1. to specify vehicle stability function requirements and transmission to ADS while active,
• Amend Annex 21 para. 2.1.2. to detail function components and on-board information requirements,
• Amend Annex 21 para. 2.1.4. to require indication of interventions to driver or ADS,
• Amend Annex 21 para. 2.1.5. to specify failure detection and indication to driver or ADS,
• Amend Annex 21 para. 2.1.6. to require warning when trailer provides VDC Active information,
• Amend Annex 21 Appendix 2 para. 2.1. to specify validation test requirements and recorded motion variables,
• Amend Annex 22 para. 3.6. to require user handbook warnings about connector compatibility and marking specifications for automated connectors.

Proposal to amend the regulation to enable application to ADS vehicles, including: Proposal to amend braking equipment functions for Automated Driving Systems:

• clarify braking equipment functions for Automated Driving Systems,
• define transmission control and energy transmission,
• specify secondary and parking braking system requirements for ADS-equipped vehicles,
• permit disabling braking controls during ADS operation,
• establish testing procedures for vehicles of categories X and Y without manual driving controls,
• allow alternative static condition brake actuation testing.

Proposal to delete footnote in paragraph 1; add bicycle impact avoidance to scope; amend paragraphs 2.13 and 2.14 regarding road adhesion definitions and Peak Braking Coefficient measurements; amend paragraph 5.4.2.3 requiring two deliberate actions for AEBS deactivation via ESC; renumber footnotes 2 through 9; and insert new paragraphs 5.4.4.1 to 5.4.4.3 to establish special provisions for vehicles equipped with an ADS.

Proposal to insert a new paragraph 1.2. stating that this Regulation does not apply to vehicles equipped with an ALKS that has been approved as an ADS feature in accordance with the UN Regulation on the approval of vehicles equipped with an Automated Driving System (i.e., where the ALKS has already been approved under the ADS regulation).

Proposal to amend paragraph 2.14. to clarify that road surface friction coefficient of at least the specified Peak Braking Coefficient represents minimum values; amend paragraph 5.2.1.1. to align collision warning requirements with pedestrian and bicycle scenarios, requiring collision warning no later than 0.8 seconds before emergency braking or at braking start if anticipation time is insufficient; amend paragraph 5.2.1.2. to clarify that emergency braking involves a braking demand of at least 5.0 m/s² to the service braking system, permitting higher demands during collision warning for short durations.

Proposal to amend paragraph 5.4.2.3. of the 01 series of amendments and the original version to UN R152 to require at least two deliberate actions by the driver where automatic deactivation of the AEBS function is a consequence of the driver manually switching off the ESC function of the vehicle. Footnotes 2 to 8 in the 01 series are renumbered to accurately reference correct footnotes. This revision addresses GRVA-24-04.