6506 - Other headgear, whether or not lined or trimmed:

HTS Code 6506 encompasses a broad range of headgear that does not fit into more specific categories within Chapter 65. This includes, but is not limited to, hats, caps, and helmets designed for general wear, protection against elements, or decorative purposes, provided they are not specifically classified elsewhere. The key defining factor for this category is the absence of a more precise HTS designation for the particular type of headwear.

Unlike sibling categories that focus on specialized items like helmets designed for specific protection (e.g., military or sports headgear which may have their own distinct HTS codes under different sections) or basic head coverings like knitted or crocheted caps, HTS 6506 serves as a residual category for all other headwear. This category is distinct from items covered in other sections of the Harmonized System, such as protective equipment that may incorporate head coverings but are primarily classified by their protective function rather than their headwear aspect.

Within HTS 6506, further distinctions are made through subcategories. The primary subdivision is for "Safety headgear" (6506.10), which covers headwear designed to protect the wearer from injury. The remaining items fall under the broader "Other" designation, allowing for the classification of diverse headwear not specifically categorized by their safety features or specific construction methods, thus ensuring comprehensive coverage of all headgear not falling into more defined groups.