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393.9

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Revision as of 12:41, 23 May 2026 by Anthony (talk | contribs)

This section covers the general requirements for operable lamps on commercial motor vehicles.



Section 393.9(a)
Description Required lamps not functioning.
Out-of-Service? Yes
Category Vehicle
Inspection Level Level 2, Level 1
Typical Action Warning
Notes IL: Typically a warning unless multiple safety systems are compromised.
Reference Links eCFR: 393.9 Lamps Operable

Regulatory Guidance & Memos

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