The tariff classification of filter plates from China
The tariff classification of photographic optical filters
Tariff classification of Corning Inc. PPMgLN Waveguide; Application for Further Review of Protest Numbers 2006-09-100125, 2006-09-100126, 2006-09-100127, 2006-09-100128, 2006-09-100129, 2006-09-100131, 2006-09-100132, 2006-09-100133, and 2006-09-100169.
The tariff classification of polycarbonate sheets
Protest 2809-96-101123; colored filter glass, unpolished and polished, in material sizes; EN 90.01; not "optically worked"; optical element; Additional U.S. Note 1, Chapter 90; Heading 7014; EN 70.14; "blanks"; EN GRI Rule 2(a)(II); Heading 7005; Note 2(b), Chapter 70; HQs 951709; 957373
The tariff classification of Mica Light Retarders from theUnited Kingdom
The tariff classification of optical windows and blanks from Russia and Ukraine
Glass Molds for Plastic Ophthalmic Lenses; Chapter 90, Additional U.S. Note 1; Optically Worked; 9001.90.90
Plastic filter lens; Heading 9001; lens; Photonics Dictionary(1989); Webster's II New Riverside University Dictionary (1984);Subheading 9001.90.40; filter; Explanatory Note 90.01(D)(5) &(9); Subheading 9001.90.90.
The tariff classification and country of origin of optical elements from Taiwan and China