4810.32.30.00 - Cards, not punched, for punchcard machines, whether or not in strips

This classification covers paper and paperboard specifically designed for use in punchcard machines, which are not perforated. These items are manufactured from kraft paper or paperboard, bleached uniformly and primarily composed of chemically processed wood fibers, exceeding 150 g/m² in weight. The material is coated on one or both sides with kaolin (China clay) or other inorganic substances, with no other coating present, and may be surface-colored, decorated, or printed.

The distinction from its sibling category, 4810.32.65.00 ("Other"), lies in the specific application of the product. While 4810.32.30.00 is exclusively for punchcard machine cards, the "Other" category would encompass kraft paper and paperboard meeting the material and coating specifications but intended for different uses or lacking the precise form factor for punchcard machines.

As this is a leaf node within the HTS, there are no further subcategories. Therefore, classification under 4810.32.30.00 is determined by the presence of the physical and material characteristics described above, coupled with the explicit intended use for punchcard machinery. Examples would include pre-cut cards or strips specifically manufactured for data input devices that utilize punchcard technology.