8701.22.00 - With both compression-ignition internal combustion piston engine (diesel or semi-diesel) and electric motor as motors for propulsion

This HTS category, 8701.22.00, specifically classifies road tractors designed for use with semi-trailers when their propulsion system is a hybrid combination. These tractors are equipped with both a compression-ignition internal combustion piston engine (commonly known as diesel or semi-diesel) and an electric motor, both of which contribute to the vehicle's motive power. The defining characteristic is the presence and functional integration of these two distinct motor types for propulsion.

To differentiate from sibling categories, 8701.22.00 is distinct from tractors that rely solely on a diesel engine (8701.21.00), or those that combine a spark-ignition engine with an electric motor (8701.23.00). Furthermore, it is separate from vehicles powered exclusively by an electric motor (8701.24.00) and any remaining tractors that do not fit the specific criteria of the other subheadings (8701.29.00). The key differentiator is the specific combination of a diesel engine *and* an electric motor for propulsion.

Within this classification, a further subdivision exists to distinguish between new and used vehicles. The primary subcategory, 8701.22.00.80, specifically addresses used vehicles of this hybrid propulsion type. This distinction is crucial for customs valuation and regulatory purposes, allowing for separate treatment based on the condition and age of the imported road tractor.