6506.91.00 - Of rubber or plastics

This HTS category, 6506.91, specifically classifies headgear made from rubber or plastics that do not fall under more specific provisions. It encompasses a wide array of protective or decorative head coverings designed for various purposes, provided their primary construction material is either rubber or plastic. This includes items like shower caps, certain types of sports helmets constructed from plastic, and industrial safety headwear not otherwise specified.

Distinguishing this category from its sibling, 6506.99 ("Of other materials"), is crucial. While 6506.91 focuses exclusively on articles manufactured from rubber or plastics, 6506.99 covers headgear made from materials such as textiles, leather, fur, straw, or felt. Therefore, the material composition is the primary determinant for classification at this level.

Within 6506.91, further subcategories exist to provide more granular classification. These subdivisions, such as bathing caps (6506.91.00.30), visors or headgear not covering the crown (6506.91.00.45), and a general "Other" category (6506.91.00.60), allow for precise identification of specific types of rubber or plastic headgear based on their design, intended use, or coverage area. This detailed breakdown ensures that similar items are grouped together for consistent tariff application.