# SF Supervisor Bilal Mahmood launches inquiry into Waymo's July 4 traffic meltdown revision history

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

Incident: [SF Supervisor Bilal Mahmood launches inquiry into Waymo's July 4 traffic meltdown](/incidents/waymo-sf-mahmood-inquiry-2026-07-07.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/waymo-sf-mahmood-inquiry-2026-07-07/history. REST: /v1/incidents/7912e9ad-b28a-4621-b652-cf40ff03f337/history. HTML: [/incidents/waymo-sf-mahmood-inquiry-2026-07-07/history](/incidents/waymo-sf-mahmood-inquiry-2026-07-07/history)._