# NHTSA opens investigation PE22-019 into TuSimple ADS safety (Aug 2022) revision history

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

Incident: [NHTSA opens investigation PE22-019 into TuSimple ADS safety (Aug 2022)](/incidents/tusimple-nhtsa-pe22-019-investigation.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/tusimple-nhtsa-pe22-019-investigation/history. REST: /v1/incidents/8019b3c3-9e1d-402c-8677-7533e8cdb2f4/history. HTML: [/incidents/tusimple-nhtsa-pe22-019-investigation/history](/incidents/tusimple-nhtsa-pe22-019-investigation/history)._