Consolidated version based on WP.29/2025/7 as amended by WP.29-195-05, WP.29/2025/144, GRVA-24-18, and GRVA-24-19. See GRVA/2026/18 for the proposed amendments.

Proposal to delete the draft “Reserved” paragraph 5.3.7.2.4.3. in GRVA/2026/18. Reserving paragraph 5.3.7.2.4.3. in the 01 series would mean that the subsequent paragraphs would be out of line with the numbering in the 02 series, making future amendments to UN R171 unnecessarily challenging.

Proposal to amend the original version (GRVA/2026/15), insert para. 5.3.7.2.1.13. to require the manufacturer to describe in the safety concept the system behaviour in case the driver is detected to be disengaged during a manoeuvre; amend the original version and the 01 series (GRVA/2026/15 and GRVA/2026/17), amend para. 3.5.1. of Annex 3 to require the manufacturer to demonstrate to the Type Approval Authority at least every three years that the safety management system continues to comply with requirements; amend the 01 and 02 series (GRVA/2026/17 and WP.29/2026/86), amend para. 2.3.2. of Appendix 2 of Annex 3; amend the 02 series (WP.29/2026/86), amend para. 4.2.5.2.19.2.1. of Annex 4; and amend the original version, 01 series and 02 series (GRVA/2026/15, GRVA/2026/17 and WP.29/2026/86), amend para. 4.2.5.2.14.1.2. of Annex 4 and para. 4.2.5.2.14.2.1. of Annex 4.

Proposal to:

• Amend the introduction to clarify that the regulation is established based on current technology and limited vehicle data, with continuous review based on technology development and monitoring data,
• Amend the definition of ‘Target Lane’,
• Insert a definition of ‘Highway-like road’,
• Amend requirements for system boundary detection, steering support at boundaries, manoeuvre initiation conditions, lane change responses, driver unavailability response, and driver disengagement detection,
• Amend provisions for withholding of hands-on-requirements on highways and highway-like roads up to 130 km/h,
• Insert requirements for system behaviour when driver disengagement is detected during manoeuvres,
• Amend approaching vehicle deceleration requirements,
• Amend production discontinuation criteria,
• Insert documentation requirements for system information strategy and operation phase safety management,
• Amend Annex 4 testing provisions to include bicycle target testing and provisions for non-rule-based algorithms,
• Amend simulation tool criticality analysis requirements in Annex 5.