0403.90.61.00 - Described in additional U.S. note 9 to this chapter and entered pursuant to its provisions

This HTS category, 0403.90.61.00, specifically covers dried sour cream containing not over 45 percent by weight of butterfat, and dried buttermilk, that are entered into the United States pursuant to the provisions of additional U.S. note 9 to Chapter 4. This note provides specific conditions under which certain dairy products may be imported. The "dried" designation is a critical differentiator, indicating that the moisture content has been significantly reduced.

Within the broader classification of "Other" fermented or acidified milk and cream, this category is distinct from its siblings. For instance, 0403.90.57.00 pertains to goods entered under general note 15 of the tariff schedule, suggesting a different set of import provisions or special trade agreements. Similarly, the "Other" sibling at 0403.90.65.00 would encompass any dried sour cream or buttermilk not meeting the specific requirements of additional U.S. note 9.

As this classification node is a leaf node, there are no further subcategories. The classification is therefore determined by the exact product characteristics fitting the description and the fulfillment of the conditions outlined in additional U.S. note 9. Examples of products falling here could include powdered buttermilk intended for food manufacturing or dried sour cream powder used in baking mixes, provided they meet the butterfat limitation and are imported in accordance with the specified note.