9001.90—Optical fibers and optical fiber bundles; optical fiber cables other than those of heading 8544; sheets and plates of polarizing material; lenses (including contact lenses), prisms, mirrors and other optical elements, of any material, unmounted, other than such elements of glass not optically worked, other

HTS 9001.90 is a 6-digit subheading of the U.S. Harmonized Tariff Schedule covering Optical fibers and optical fiber bundles; optical fiber cables other than those of heading 8544; sheets and plates of polarizing material; lenses (including contact lenses), prisms, mirrors and other optical elements, of any material, unmounted, other than such elements of glass not optically worked, other. It belongs to Chapter 90 and rolls up 5 10-digit statistical lines that brokers actually file at entry.

Every 10-digit line under HTS 9001.90 carries a general (Column 1) duty rate of Free. Section 301, Section 232, and AD/CVD overlays may stack on top of this rate at the per-line level — open a specific 10-digit code to see its complete tariff stack.

U.S. Customs requires entries to be filed at the 10-digit statistical level — the broader subheading HTS 9001.90 is not directly fileable. Match your product description to the most specific 10-digit line in the list on this page; if multiple lines could apply, the General Rules of Interpretation (GRIs) and chapter notes determine which one governs.

No active AD/CVD (antidumping or countervailing duty) orders currently flag any line under HTS 9001.90 in Tandom's catalog. Tandom monitors Federal Register notices daily; any new orders will appear here within 24h of publication.