8701.23.00.15 - G.V.W. not exceeding 36,287 kg

This HTS category encompasses new road tractors designed for semi-trailers that are propelled by a combination of both a spark-ignition internal combustion piston engine and an electric motor. These vehicles are specifically classified based on their Gross Vehicle Weight (G.V.W.) not exceeding 36,287 kilograms. The inclusion of both engine types for propulsion is a key distinguishing feature, indicating a hybrid or dual-mode power system.

The primary differentiator for this classification lies in the specified G.V.W. limit. It is distinct from its sibling category, 8701.23.00.45, which covers identical types of road tractors but with a G.V.W. exceeding 36,287 kilograms. Therefore, the precise weight of the tractor is the critical factor in determining which of these two sibling categories applies.

As this classification represents a leaf node within the HTS, there are no further subcategories to explore. The classification criteria are fully defined at this level, focusing on the vehicle type (road tractor for semi-trailers), the propulsion system (spark-ignition ICE and electric motor), its condition (new), and its Gross Vehicle Weight. Examples within this category would include new hybrid semi-trailer tractors with a G.V.W. under the specified threshold, utilized for long-haul trucking and designed to leverage both engine types for efficiency and reduced emissions.