8701.21.00.80 - Used

This HTS category specifically covers used road tractors designed for towing semi-trailers. These vehicles are characterized by their primary function of hauling freight via a fifth wheel coupling mechanism, distinguishing them from other types of tractors. The inclusion of "Used" signifies that the classification applies to vehicles that have been previously operated and are now being imported or exported.

It is crucial to differentiate this category from its sibling, "New" road tractors for semi-trailers. The "Used" designation directly relates to the operational history of the vehicle. While the physical and functional characteristics of a used road tractor for semi-trailers will largely align with a new one, the condition of prior use is the defining factor for this specific classification.

As this is a leaf node within the HTS structure, there are no further subdivisions under this category. Therefore, classification within this code relies on confirming that the road tractor is indeed used, intended for semi-trailer towing, and meets the engine specifications outlined in the parent categories (compression-ignition internal combustion piston engine, i.e., diesel or semi-diesel).