2309.90.24.10 - Milk replacer

This HTS classification, 2309.90.24.10, specifically covers "Milk replacer" that falls under the broader category of animal feeds containing milk or milk derivatives. These are formulated preparations designed to substitute for natural milk in the diet of young animals. To qualify for this subheading, the milk replacer must contain over 10 percent by weight of milk solids and meet the specific criteria outlined in additional U.S. note 2 to Chapter 23, ensuring it is entered under the provisions detailed therein.

The key differentiator for this specific subheading lies in its intended purpose as a direct substitute for milk. While other categories within "Animal feeds containing milk or milk derivatives" might include milk components as an ingredient, this subheading focuses on complete milk replacement formulations. The sibling category, 2309.90.24.90, encompasses "Other" milk-based animal feeds that do not meet the specific requirements of this "Milk replacer" subheading, such as those where milk solids are a supplementary component rather than the primary substitute.

As this is a leaf node in the HTS structure, there are no further subcategories. Therefore, the classification decision hinges on accurately identifying the product as a milk replacer and confirming that it meets the stipulated milk solid percentage and the requirements of additional U.S. note 2. This ensures that such specialized animal feed preparations are consistently categorized for customs purposes.