# ADS crash report in Philadelphia, PA involving a ZEEKR RT (NHTSA SGO 30270-14702) revision history

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

Incident: [ADS crash report in Philadelphia, PA involving a ZEEKR RT (NHTSA SGO 30270-14702)](/incidents/nhtsa-sgo-30270-14702.md)

## Recorded posture

- First recorded event: 2026-07-12
- Last material change: 2026-07-12
- Last editorial change: 2026-07-12
- Material event count: 1
- Editorial event count: 1

## Material events (1)

- **2026-07-12**: field_updated on `severity` set to `minor` (source: https://www.nhtsa.gov/laws-regulations/standing-general-order-crash-reporting#report-30270-14702) (reported)

## Editorial events (1)

- **2026-07-12**: field_updated on `bodilyInjurySeverity` (source: https://www.nhtsa.gov/laws-regulations/standing-general-order-crash-reporting#report-30270-14702)

## 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.

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