4013.90 - Other:

This HTS category, 4013.90, encompasses inner tubes of rubber that are not specifically classified under the more detailed subheadings for motor vehicles or bicycles. It serves as a residual category for inner tubes made from rubber, intended for a variety of applications beyond those explicitly mentioned in sibling categories. Therefore, importers and exporters will find items here that do not fit the precise criteria of inner tubes for motor cars, buses, trucks, or bicycles.

Distinguishing 4013.90 from its siblings is crucial for accurate classification. While 4013.10.00 covers inner tubes for motor vehicles and 4013.20.00.00 addresses those for bicycles, this category captures all other types. This means inner tubes designed for agricultural machinery, industrial equipment, heavy-duty vehicles not falling under the "motor cars, buses or trucks" definition, or any other specialized pneumatic tire applications would be classified here, provided they are made of rubber.

Within 4013.90, further subcategories exist to refine classification based on specific tire types. Subheading 4013.90.10.00 is designated for inner tubes designed for tires provided for in specific other HTS subheadings, indicating a precise relationship to certain tire types. The remaining inner tubes not meeting this specific criteria fall under 4013.90.50, "Other," ensuring a comprehensive classification framework for all rubber inner tubes.