Agricultural commodity trailer.
Agricultural commodity trailer. A trailer that is designed to transport bulk agricultural commodities in off-road harvesting sites and to a processing plant or storage location, as evidenced by skeletal construction that accommodates harvest containers, a maximum length of 28 feet, and an arrangement of air control lines and reservoirs that minimizes damage in field operations.
Source
49 CFR § 393.5
Scoping language
As used in this part, the following words and terms are construed to mean: