0505.90 - Other:

This HTS category, 0505.90, encompasses other products derived from birds' skins, feathers, and down that are not specifically addressed in sibling categories. It includes materials that have undergone basic processing such as cleaning, disinfection, or preservation treatment, but have not been further worked. This broad scope allows for the classification of a variety of avian byproducts, excluding those with more defined uses or processing levels.

Distinguishing this category from its sibling, 0505.10 (Feathers of a kind used for stuffing; down), is crucial. While 0505.10 specifically targets feathers and down intended for filling purposes, 0505.90 covers all other processed parts of birds' skins, feathers, and down that do not meet this stuffing criterion. This might include decorative feather materials, or other treated avian parts not destined for textile or cushioning applications.

Within 0505.90, further subdivisions exist to refine classification. The subcategory 0505.90.20 specifically addresses feather meal and waste, acknowledging these as distinct classifications of avian byproduct. The remaining items not falling into the feather meal and waste category are then grouped under 0505.90.60.00, "Other," ensuring comprehensive coverage of all remaining eligible goods.