Proposal addressing use of “aim to” and “designed to”.

Copy of document GRVA-17-49.

Document GRVA-17-49 from the September 2023 GRVA session.

Proposal to differentiate between the scope of UN R79 and the proposed UN Regulation on Driver Control Assistance Systems (DCAS).

Responses to changes made in document ADAS-26-04.

Original proposal with in-session markup.

Proposal as discussed and amended during the 27th ADAS task force session.

Proposal to clarify the conditions for automatic re-instatement of the system at the “initiation of each engine start / run cycle”.

Proposal to align the original proposal to amend UN R171 with UN R79 and UN R157 with regard to the use of the term “activation” in relation to the powertrain.

Revised proposal concerning reinstatement of the system at initiation of the powertrain.

Proposal to modify the in-service performance reporting requirements.

Proposal for driver acknowledgement of correct use of DCAS.

Proposal to cleanse the document with regard to reference to system-initiated manoeuvres to avoid misinterpretation.

Proposal to revise the transitional provisions and provisions on continued compliance with Safety Management Systems provisions.

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 para. 3.5.1. in 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 for software and hardware employed in the system to manage safety and continued compliance throughout the product lifecycle. This amendment resolves outstanding issues in the 01 series of amendments to UN Regulation No. 171.