8701.21.00.45 - G.V.W. exceeding 36,287 kg

This HTS classification covers new road tractors specifically designed for pulling semi-trailers, which are equipped with only a compression-ignition internal combustion piston engine (commonly known as diesel or semi-diesel engines). The defining characteristic of this category is that these tractors have a Gross Vehicle Weight (G.V.W.) that *exceeds* 36,287 kilograms. These are heavy-duty vehicles built for significant hauling capacity in long-haul road transportation.

This category is distinguished from its sibling, 8701.21.00.15, by the G.V.W. threshold. While both classifications pertain to new road tractors with diesel engines, 8701.21.00.15 applies to those with a G.V.W. *not exceeding* 36,287 kg. Therefore, the critical differentiator is the maximum weight the tractor is designed to carry or pull, with this code applying to the heavier-duty vehicles.

As a leaf node in the HTS system, 8701.21.00.45 does not have further subcategories. Classification within this code is determined by the presence of a diesel compression-ignition engine, its design as a road tractor for semi-trailers, its new condition, and, crucially, its Gross Vehicle Weight exceeding the specified 36,287 kg. This designation ensures accurate customs duty assessment and trade statistics for these substantial commercial vehicles.