0511.99.30 - Products chiefly used as food for animals or as ingredients in such food

HTS code 0511.99.30 specifically enumerates products primarily intended for use as animal feed or as components within animal feed formulations. This broad category encompasses a diverse range of materials derived from animals that, while not fit for human consumption, possess nutritional value or desirable properties for livestock, poultry, aquaculture, or pet food industries.

Distinguishing this subcategory from its siblings, 0511.99.30 is distinct from parings and waste of hides (0511.99.20), which are typically processed for glue or leather remnants. It also differs from specific animal hair products like horsehair (0511.99.33) and natural sponges of animal origin (0511.99.36), which have dedicated classifications due to their unique material properties and distinct end-uses outside of animal nutrition.

Within 0511.99.30, further subdivisions exist to refine classification. The inclusion of Antarctic krill (Euphausia superba) as a distinct subcategory (0511.99.30.30) highlights its specific importance and common utilization as a high-protein ingredient in aquatic animal feeds. The residual "Other" subcategory (0511.99.30.60) captures all other animal-derived products that meet the primary use criterion for animal feed but are not specifically enumerated elsewhere.