9603.30 - Artists' brushes, writing brushes and similar brushes for the application of cosmetics:

This HTS category, 9603.30, specifically encompasses artists' brushes, writing brushes, and similar brushes designed for the application of cosmetics. This includes a range of brushes used for artistic endeavors such as painting, calligraphy, and makeup application, where precise and controlled application of mediums is essential. The defining characteristic is their intended use for specialized application purposes beyond general cleaning or personal grooming.

It is important to distinguish this subheading from its siblings. Unlike 9603.10 which covers brushes made from twigs or other vegetable materials, or the broad range of toilet brushes under the unnumbered subheading for personal grooming, 9603.30 is focused on brushes with a more refined purpose. Similarly, it differs from 9603.40, which covers paint, varnish, and distemper brushes (excluding those in 9603.30) and paint pads/rollers, as well as 9603.50.00.00, which pertains to brushes that are integral parts of machines or appliances.

The subcategories within 9603.30 are based on the individual value of the brushes. This distinction into 9603.30.20.00 (valued not over 5¢ each), 9603.30.40.00 (valued over 5¢ but not over 10¢ each), and 9603.30.60.00 (valued over 10¢ each) allows for differentiated tariff treatment based on the economic value of these specialized brushes.