4811.10.21.00 - Other

This HTS category, 4811.10.21.00, encompasses "Other" tarred, bituminized, or asphalted paper and paperboard. It serves as a residual classification for such materials when they do not meet the specific dimensional criteria outlined for other subheadings within heading 4811.10. These products are characterized by the application of tar, bitumen, or asphalt to the paper or paperboard surface, imparting properties such as water resistance, protection, or adhesion.

The primary distinction of this category lies in its broad application, covering any tarred, bituminized, or asphalted paper and paperboard that does not fit the more narrowly defined sibling category. Specifically, it captures goods that are not in strips or rolls exceeding 15 cm in width, nor in rectangular sheets with one side exceeding 36 cm and the other exceeding 15 cm when unfolded. Therefore, if the dimensions fall outside these specific parameters, and the material is tarred, bituminized, or asphalted, it would likely be classified here.

As this is a leaf node, there are no further subcategories to introduce. Classification within 4811.10.21.00 is determined by the material being treated with tar, bitumen, or asphalt and not meeting the specific dimensional thresholds of its sibling. This classification is essential for ensuring accurate duty assessment and trade statistics for a variety of protective and construction-related paper products.