0309.90.90.00 - Other

This category, HTS Code 0309.90.90.00, specifically covers "Other" flours, meals, and pellets derived from aquatic invertebrates, provided they are fit for human consumption. Unlike the sibling categories which are dedicated to specific groups like crustaceans or molluscs, this classification acts as a residual category for all other types of aquatic invertebrates that meet the criteria for flours, meals, or pellets.

The key differentiator for this "Other" category lies in the origin of the raw material. If the flours, meals, or pellets are produced from aquatic invertebrates *not* explicitly classified under the categories for crustaceans or molluscs, they will fall here. Examples might include products derived from various marine worms, sea urchins, or other less commonly utilized aquatic invertebrates, as long as they are processed into a flour, meal, or pellet form and intended for human consumption.

As this is a leaf node, there are no further subcategories. Therefore, classification within this HTS code hinges on the precise identification of the aquatic invertebrate source material and confirmation that it is not otherwise specified in a more particular sibling category. The intended use as food for human consumption is a critical factor in determining eligibility for Chapter 3 headings.