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.

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Regulations1

Regulation

49 CFR 192.631

Control room management.

192.631(d)(4) · cited in enforcement

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Record details

Retrieved: Aug 10, 2026
Version: Source current

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