8907.90.00.30 - Buoys

This HTS category, 8907.90.00.30, specifically classifies "Buoys" within the broader group of "Other floating structures." Buoys are understood as floating markers or aids used for navigation, signaling, mooring, or as part of a system for scientific observation or data collection. They are typically designed to be anchored in a fixed position and are characterized by their buoyancy and visual prominence. Examples include navigational buoys, marker buoys, weather buoys, and mooring buoys, irrespective of their material composition (e.g., plastic, metal, composite).

This classification is distinct from its sibling categories at the same level. Unlike "Tanks" (8907.90.00.60), which are primarily designed for the containment of liquids or gases, buoys are intended for placement in water and serve a signaling or navigational function. Similarly, the "Other" category (8907.90.00.90) at this level would encompass floating structures that do not fit the specific descriptions of buoys or tanks, such as floating platforms or temporary structures.

As this node represents a leaf category within the HTS, there are no further subcategories. Therefore, the classification of a floating article as a "Buoy" under 8907.90.00.30 depends on its primary function as a floating marker or aid, distinguished from other types of floating structures by its purpose and typical design features.