# Enforcement cases citing § 192.631(d)(4)

**Citation:** 49 CFR 192.631(d)(4)  
**Type / status:** enforcement / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** Not stated

PHMSA's public enforcement index for cases citing the emergency-deviation provision of the controller fatigue rule.

## Document text

This official PHMSA enforcement index groups public enforcement cases by cited regulation. The linked page identifies cases citing 49 CFR 192.631(d)(4), the provision governing emergency deviations from maximum controller hours-of-service. Case availability and status are controlled by PHMSA's enforcement database; users should open the official record for current case details.

## Provenance

- Official: Yes
- Source: <https://primis.phmsa.dot.gov/enforcement-data/cited-reg/192631d4>
- Source ID: `phmsa-enforcement`
- SHA-256: `d28b238957a9d5617baa42118ee7dd8db6a39808e45706b4b442e0fa30098c4a`
- Retrieved: 2026-08-10T00:00:00.000Z
- Exported: 2026-08-22T06:34:42.146Z
- Document slug: `enforcement-cases-192-631-d-4`

### Source metadata

```json
{
  "citedSections": [
    "192.631(d)(4)"
  ],
  "liveIndex": true,
  "jurisdiction": "US"
}
```