49 CFR 393.9 - Lamps operable, prohibition of obstructions of lamps and reflectors.
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(a) All lamps required by this subpart shall be capable of being operated at all times. This paragraph shall not be construed to require that any auxiliary or additional lamp be capable of operating at all times.
(b) Lamps and reflective devices/material required by this subpart must not be obscured by the tailboard, or by any part of the load, or its covering by dirt, or other added vehicle or work equipment, or otherwise. Exception: The conspicuity treatments on the front end protection devices may be obscured by part of the load being transported.
[70 FR 48027, Aug. 15, 2005]
Title 49 published on 2014-10-01
no entries appear in the Federal Register after this date.