# TuSimple autonomous truck swerved across I-10 and struck a concrete barrier (Tucson) revision history

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

Incident: [TuSimple autonomous truck swerved across I-10 and struck a concrete barrier (Tucson)](/incidents/tusimple-i10-tucson-barrier-strike-2022.md)

## Recorded posture

- First recorded event: 2026-06-04
- Last material change: 2026-06-04
- Material event count: 1
- Editorial event count: 0

## Material events (1)

- **2026-06-04**: created (source: baseline:arc-g)

## 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/tusimple-i10-tucson-barrier-strike-2022/history. REST: /v1/incidents/1da3294c-85bf-4b44-a561-6d3679450e42/history. HTML: [/incidents/tusimple-i10-tucson-barrier-strike-2022/history](/incidents/tusimple-i10-tucson-barrier-strike-2022/history)._