# NTSB investigates Waymo robotaxis illegally passing stopped school buses revision history

Append-only Arc G field-change log. Forward-only honesty: events accrue from Arc G adoption.

Incident: [NTSB investigates Waymo robotaxis illegally passing stopped school buses](/incidents/regulatory-action-2026-03-15-waymo.md)

_No events on file. Arc G is forward-only; the recorded event log accrues from Arc G adoption. For the current state of this incident, see the incident page._

## Forward-only note

Arc G is forward-only. The event log accrues from the Arc G adoption point. Fields with no events post-baseline equal the current cached value and are not independently verified at any prior date.

_Canonical URL: /incidents/regulatory-action-2026-03-15-waymo/history. REST: /v1/incidents/971f8d99-58b0-4f12-9c79-35385f7616d1/history. HTML: [/incidents/regulatory-action-2026-03-15-waymo/history](/incidents/regulatory-action-2026-03-15-waymo/history)._