FMCSA Acute & Critical Violations — Quick Reference

Source: 49 CFR Part 385, Appendix B (List of Acute & Critical Regulations). Last checked: .

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Notes:

  • “Acute” items require immediate corrective action. “Critical” items indicate a pattern-based deficiency.
  • Factor mapping: General (387, 390); Driver (382, 383, 391); Operational (392, 395); Vehicle (393, 396); HazMat (171–173, 177, 180, 397).
  • This quick reference is informational and does not replace the text of the regulations.