Proposal to explicitly note objectives behind provisions requiring manufacturers to perform in-service monitoring and reporting (ISMR) for their driver-control assistance systems approved under UN R171 and for UN R171 to be continually reviewed based on technological progress and data collected via ISMR.

Proposal to improve the wording of the “decelerating lead vehicle” test scenario for consistency with related provisions in the text.

Proposal to modify the in-service performance reporting requirements.

Proposal for driver acknowledgement of correct use of DCAS.

Proposal to introduce new provisions to enable regulating DCAS supporting system-initiated manoeuvres and/or allowing skipping “Hands-on” requests, ensuring maintaining string stability and providing additional editorial corrections and clarifications.

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