Heavy hauler trailer

Heavy hauler trailer means a trailer which has one or more of the following characteristics, but which is not a container chassis trailer:
(1) Its brake lines are designed to adapt to separation or extension of the vehicle frame; or
(2) Its body consists only of a platform whose primary cargo-carrying surface is not more than 40 inches above the ground in an unloaded condition, except that it may include sides that are designed to be easily removable and a permanent “front end structure” as that term is used in § 393.106 of this title.


49 CFR § 571.121

Scoping language

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