Proposal to amend para. 1.1., Footnote 1 to update the reference to the Consolidated Resolution on the Construction of Vehicles (R.E.3.) document ECE/TRANS/WP.29/78/Rev.8, para. 2, and amend para. 4.5.1., Footnote 2 to update the reference to Annex 3 of the Consolidated Resolution on the Construction of Vehicles (R.E.3), document ECE/TRANS/WP.29/78/Rev.8.

Proposal to amend UN R86 on various provisions related to vehicle scope, mass definitions, approval references, and test requirements:

• Amend paras. 1.1. and 1.2. to modify the scope for Level 1A and Level 1B
• Insert Footnote 1 to para. 1.
• Amend para. 3.3. to revise the heading
• Amend para. 3.3.3. to redefine “Mass in running order” and clarify driver mass inclusion for vehicles of categories X and Y
• Amend Note a of Figure 3 to align the definition of mass and driver mass treatment
• Renumber Footnote 1 to Footnote 2 in para. 5.4.1. and amend its content to reference the 1958 Agreement distinguishing numbers
• Amend para. 8.3.1. to expand vehicle condition requirements including selectable modes, battery charge mode, ADS features, aerodynamics modifications, test mass composition, driving behaviour verification, and emissions monitoring parameters
• Insert new para. 9.3.5. and new para. 9.3.5.1. to establish special provisions for vehicles equipped with an ADS
• Amend Annex 1 Part 1 to add approval number references to UN Regulation No. 154 and level of approval designation
• Amend Annex 1 Part 2 to add level of approval designation
• Amend para. 12.10. of Annex 1 Part 2 to expand the scope of devices or systems with user-selectable modes to include electric energy consumption
• Amend the explanatory note (h) of Annex 1
• Amend row 21 of Table A4/1 in Annex 4 to modify acceleration demand parameters.

Proposal to amend UN R179 Supplement 1:

• Modify the scope to include vehicles of category N₂ between 3.5 and 5 tonnes maximum mass at manufacturer request
• Add abbreviations and definitions including “Category M₁ vehicle”, “Mass in running order”, “Service brake”, “Brake calliper”, “User-selectable mode”, “ADS user”, and “Vehicle user”
• Amend the reference method to require testing on WLTP-Brake cycle using UN R154 compliant chassis dynamometer with external sensors for brake torque
• Specify vehicle selection procedures for testing user-selectable modes resulting in lowest recuperation with possible exemptions for very special limited purposes modes

Proposal to amend UN R17, including revised definitions of head restraint, corrections to paragraph references, replacement of terminology such as “absorption” with “dissipation” and “reference line” with “longitudinal vertical plane passing through the R-point,” revised test procedures in multiple annexes, and modifications to measurement requirements for head restraint displacement and strength testing. The text was adopted by GRSP at its seventy-eighth session based on ECE/TRANS/WP.29/GRSP/78, Annex IV.A. Amendments

Proposal based on GRSP/2025/31 to amend para. 7.1.3.6. to require relevant intermediate dummies testing when Enhanced Child Restraint Systems require substantial modification for different sizes or when size range covers more than 3 size ranges and to delete paragraph 5.5. and renumber paragraphs 5.6. to 5.8. as 5.5. to 5.7.

Proposal to modify para. 6.2.1.1. regarding insert layers for small babies with stature below 50 cm, amend Annex 18, table 1 with updated shoulder height dimensions for statures 40 cm to 70 cm, update approval markings in Annex 2, and introduce transitional provisions with Contracting Parties no longer obliged to accept preceding series approvals from 1 September 2028.

Proposal to amend Annex 3, table 3, column “Number of cycles,” first row, is amended to read “60 per cent of initial cycle life (11 000 cycles).” and Annex 3, table 4, column “Number of cycles,” first and second rows, is amended to read “20 per cent of initial cycle life (11 000 cycles).”

Proposal to extend UN R134 to vehicles of category X (excluding vehicles of category Y), add provisions for Periodic Technical Inspections, modify hydrogen concentration warning requirements for ADS features of type 2 to transmit logic signals to the ADS, and adjust test cycle specifications in Annex 3.

Proposal to clarify that Child Restraint Systems approved according to UN R129 or R44 may be used in vehicles of categories M₂ and M₃ with a 3-point belt and/or ISOFIX attachments without further requirements. As a result, Part I of UN R170 covers Built-in Child Restraint Systems for securing children from 40 – 150 cm in forward facing and rearward facing vehicle seats and Part II addresses Child Restraint Systems approved according to UN R129 or R44 which may be installed in a bus seat with a 2-point belt.

Proposal to extend the scope to include vehicles of category X, replace “driver” by “occupant”, and separate the scope into vehicles with regard to protection of occupants against the steering mechanism and electrical shock in a frontal collision and steering controls with regard to protection of occupants in the event of impact.

Proposal to enable application to vehicles of category X. For vehicles equipped with an Automated Driving System other than vehicles of category X, in manual driving mode no special provisions apply. In a mode where an ADS feature is active, the relevant requirements for ADS vehicles apply.

Proposal to enable application to vehicles of category X (vehicles of category Y are not in scope). For vehicles of category X, the R point of the most forward passenger seat shall be taken instead of the R-point of the driver’s seat. Amendments address steering control contact requirements and modify occupant references.

Proposal to enable application to vehicles of category X, including prohibition of one-touch closing when an ADSF-2 is active, requirement for auto-reversing devices for power operated windows that can be operated by an ADSF-2, and user manual instructions for power-operated systems including warnings regarding improper use and driver and ADS responsibilities.

Proposal to enable application to vehicles of category X (vehicles of category Y are not in scope) with amendments addressing steering wheel hub provisions, cab positioning, and seating requirements for vehicles of category X. Cabs for vehicles of category X mounted in other positions than vehicle front shall not be taken into account for frontal collision simulation.

Proposal to enable application to vehicles of category X, including attention to ADAS/ADS sensors and providing specifications for test procedures and dummy positioning requirements for vehicles of category X in frontal collision protection testing.

Proposal to insert new introductory paragraphs addressing vehicles of category X and vehicles with manual mode operating at speeds above 6 km/h equipped with an Automated Driving System, amend footnote 1 to paragraph 1.1. to reference ECE/TRANS/WP.29/78/Rev.8, amend footnote 2 to paragraph 4.1.4.1. to reference ECE/TRANS/WP.29/78/Rev.8, and amend paragraph 6.17.4.2. to establish an exception for aerials located behind the vertical transversal plane passing through the “R” point of the driver with a maximum projection not exceeding 70 mm, or for vehicles of category X, behind the vertical transversal plane passing through the “R” point of the foremost occupant.

Proposal to insert new paragraphs 0. and 0.1. to 0.1.2. addressing vehicles of categories X and Y and vehicles with manual mode operating at speeds above 6 km/h equipped with an ADS, amend paragraph 1., footnote 1 to reference ECE/TRANS/WP.29/78/Rev.8, amend paragraph 3., footnote 2 to reference ECE/TRANS/WP.29/78/Rev.8, Annex 3, amend para. 4.3. to define “Occupant compartment”, and amend paras. 5.5. to 5.8. to specify tank placement, partition requirements, fuel leakage prevention, and filler hole location.

Proposal to insert new paragraphs 0., 0.1., and 0.1.1. introducing Supplement 2 to address vehicles of categories X and Y and to exclude vehicles without manual driving controls, amend para. 1 Scope to apply to vehicles of category M₁ equipped with foot controls, amend footnote 1 to para. 1 and footnote 2 to para. 4.4.1. to reference the Consolidated Resolution on the Construction of Vehicles (R.E.3).

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 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 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 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 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 correct paragraph 5.6.1.2.9. of Supplement 1 to the 04 series of UN R79, Supplement 6 to the 03 series of UN R79, and Supplement 3 to the 02 series of UN R79. For RCP systems based on detection of driver position and movement, the deactivation referred to in paragraph 5.6.1.1.3. shall be through a simple and obvious action that will be recognised by the system.