Pole trailer

Pole trailer means any motor vehicle which is designed to be drawn by another motor vehicle and attached to the towing motor vehicle by means of a reach or pole, or by being boomed or otherwise secured to the towing motor vehicle, for transporting long or irregularly shaped loads such as poles, pipes, or structural members, which generally are capable of sustaining themselves as beams between the supporting connections.

Source

49 CFR § 390.5

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Scoping language

Unless specifically defined elsewhere, in this subchapter:

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