9902.11.86 - Poly(vinyl butyral) film (CAS No. 27360-07-2), certified by the importer to be used in aircraft (provided for in subheading 3920.91.00)

This HTS classification pertains to Poly(vinyl butyral) film, specifically identified by CAS Number 27360-07-2. The key criterion for classification under this code is that the importer must certify its intended use in aircraft. While the material itself, Poly(vinyl butyral), is a polymer that could potentially fall under other chapters of the HTS based on its physical form or general composition, this specific provision carves out a dedicated classification for this film when designated for aviation purposes. It is provided for in subheading 3920.91.00, indicating that it originates from other plastics and products thereof, not elsewhere specified or included.

As this is a leaf node within Chapter 99, it does not have further subdivisions. Its significance lies in its role as a special classification provision. Unlike the broad categories found in the earlier chapters of the HTS (e.g., Chapter 01 covering live animals), this code addresses a specific, often temporary, modification or provision related to trade agreements or other legislative actions. The inclusion within Chapter 99 signifies that this classification is subject to specific conditions and may not represent a permanent tariff treatment, differentiating it from the standard commodity classifications found throughout the rest of the Harmonized Tariff Schedule. The importer's certification of its use in aircraft is the critical factor that distinguishes this classification from other potential classifications for Poly(vinyl butyral) film.