9902.04.70 - (RS)-α-cyano-4-fluoro-3-phenoxybenzyl(1RS,3RS;1RS,3SR)-3- (2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate (β-Cyfluthrin) (CAS No. 68359-37-5) (provided for in subheading 2926.90.30)

This HTS category, 9902.04.70, specifically covers the synthetic insecticide known as (RS)-α-cyano-4-fluoro-3-phenoxybenzyl(1RS,3RS;1RS,3SR)-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate, more commonly recognized as β-Cyfluthrin. This designation falls under Section XXII of the Harmonized Tariff Schedule, which pertains to Special Classification Provisions, Temporary Legislation, and Temporary Modifications proclaimed pursuant to Trade Agreements Legislation, as well as Additional Import Restrictions proclaimed pursuant to Section 22 of the Agricultural Adjustment Act. The inclusion of CAS No. 68359-37-5 and its reference to subheading 2926.90.30 indicates its chemical nature as a nitriles derivative and its current classification under temporary provisions.

Given that this is a leaf node within Chapter 99, there are no further subcategories to explore. The uniqueness of this classification lies in its specific application of temporary legislative measures to a particular chemical compound, β-Cyfluthrin. While the broader scope of Chapter 99 deals with temporary trade adjustments and restrictions, this particular HTS code isolates a specific insecticide for special tariff or control purposes. Its distinction from other HTS categories is predicated on the temporary nature of its inclusion within this chapter, as opposed to a permanent classification within the standard chapters of the HTS. Therefore, importers encountering this code should consult the specific notes and proclamations associated with Section XXII for detailed directives and any associated duties or limitations.