4901.99.00.91 - Containing not more than 4 pages each (excluding covers)

This HTS classification, 4901.99.00.91, specifically covers printed books, brochures, leaflets, and similar printed matter that contain a limited number of pages, defined as not more than 4 pages each, excluding the covers. This category is intended for very brief printed works, such as single-sheet flyers that are folded, or small pamphlets with minimal content. The primary classification criterion here is the low page count, distinguishing it from other subdivisions within the "Other" category for printed matter.

This category is differentiated from its sibling categories by its specific page count limitation. While 4901.99.00.92 encompasses items with 5 to 48 pages, and 4901.99.00.93 includes items with 49 or more pages, 4901.99.00.91 is exclusively for printed matter with 4 pages or fewer (excluding covers). This precise page count is the sole determinant for classification within this specific HTS code, emphasizing the brevity of the printed material.

As this is a leaf node within the HTS structure, there are no further subcategories branching from this classification. Therefore, the focus for classification purposes remains strictly on identifying printed items that meet the explicit criteria of having no more than 4 pages each, excluding any front or back covers. Examples include single-fold flyers, small informational cards, or very concise booklets.