8703.40.00.30 - Having engines with more than 4 cylinders but not more than 6 cylinders

This HTS category, 8703.40.00.30, specifically classifies hybrid motor vehicles that are principally designed for the transport of persons and feature both a spark-ignition internal combustion piston engine and an electric motor for propulsion. Crucially, these vehicles are *not* capable of being charged by plugging into an external electrical source. The internal combustion engine within this classification must have a cylinder capacity exceeding 1,500 cc but not exceeding 3,000 cc.

The defining characteristic of this category is the number of cylinders in its spark-ignition internal combustion engine. It distinguishes itself from sibling categories by including vehicles with engines having *more than 4 cylinders but not more than 6 cylinders*. Vehicles with engines having four or fewer cylinders would fall under 8703.40.00.20, while those with more than six cylinders would be classified under 8703.40.00.40. This precise cylinder count is a key differentiator for customs purposes.

As this is a leaf node within the HTS, there are no further subcategories. Therefore, classification under 8703.40.00.30 is final based on the criteria of being a hybrid vehicle for passenger transport, not externally chargeable, with an internal combustion engine capacity between 1,500 cc and 3,000 cc, and that engine having between 5 and 6 cylinders.