9902.15.97 - Used camshafts and crankshafts, designed for use solely or principally with compression-ignition internal combustion piston engines (other than spark-ignition internal combustion engines) (provided for in subheading 8483.10.30)

This HTS category, 9902.15.97, specifically covers used camshafts and crankshafts that are designed for use in compression-ignition internal combustion piston engines. These are commonly known as diesel engines. The "used" aspect is crucial; new camshafts and crankshafts would fall under different provisions. This classification is a temporary measure and applies to goods otherwise provided for in subheading 8483.10.30, indicating a specific treatment or modification for these particular used engine parts.

Distinguishing this category from its siblings at the root level of the HTS database is straightforward. The sibling categories, such as those for live animals (0101-0105), represent vastly different classes of goods. Category 9902.15.97, by contrast, deals with specific mechanical components of internal combustion engines. Its placement within Chapter 99 signifies its status as a temporary legislative or trade agreement provision, distinct from the permanent structure of Chapters 1 through 98.

As this is a leaf node in the HTS database, there are no further subcategories to introduce. The classification is specific to used camshafts and crankshafts intended for diesel engines. When classifying goods under this provision, the importer must verify that the parts are indeed used and that their design is specifically for compression-ignition (diesel) engines, not for spark-ignition (gasoline) engines. The reference to subheading 8483.10.30 serves as a key identifier for the underlying permanent classification of such parts when not subject to temporary legislation.