Projection screens imported from certain countries have historically been subject to antidumping duty orders at the HTS level. Importers should verify whether an active antidumping or countervailing duty order applies to the specific origin and product type before importation, as scope determinations can be complex for screens of varying sizes and constructions. A licensed customs broker or trade attorney can assist with scope review.

A negatoscope in this heading is a general-purpose photographic viewing device used to examine film negatives and transparencies. When the same or similar device is marketed and intended specifically for reading medical radiographs in a clinical diagnostic context, it may be regulated as a medical device under FDA jurisdiction. The intended use and marketing claims — not the physical design alone — determine whether FDA review applies.