Glass Wool and Articles of Glass Wool

The US schedule provides distinct 10-digit lines for batts of nonwoven glass fibers (7019801010) and pipe coverings of nonwoven glass fibers (7019801020), both within the broader insulation products grouping (7019801000). The product form — flat batt versus pre-formed pipe section — determines which line applies, and importers should ensure commercial invoices describe the physical form clearly.

Importers should check the US International Trade Commission and Commerce Department databases for any active trade remedy orders covering glass wool or fiberglass insulation products, as this sector has historically been subject to trade remedy proceedings. The applicable order, if any, would be product- and country-specific, so a licensed customs broker or trade attorney should be consulted before entry.