9902.06.54 - 6-Chloro-4-N-ethyl-2-N-propan-2-yl-1,3,5-triazine-2,4-diamine (Atrazine) (CAS No. 1912-24-9) (provided for in subheading 2933.69.60)

This HTS category, 9902.06.54, specifically classifies the herbicide known as 6-Chloro-4-N-ethyl-2-N-propan-2-yl-1,3,5-triazine-2,4-diamine, commonly referred to as Atrazine. This classification falls under Chapter 99, which pertains to temporary legislation and special provisions, indicating that its use or importation may be subject to specific restrictions, quotas, or additional duties beyond the standard tariff. The designation "provided for in subheading 2933.69.60" signifies that Atrazine is primarily recognized as a chemical compound within the heterocyclic compounds section of the tariff, but for import purposes, it is being routed through this specific temporary provision.

Unlike the preceding sibling categories, which cover a broad range of live animals from horses to poultry, this category focuses on a single, highly specific chemical substance used in agriculture. The distinction lies in the nature of the goods themselves: living organisms versus a manufactured chemical compound. Furthermore, within the vast landscape of the HTS, this node is a leaf node, meaning there are no further subdivisions beneath it. Therefore, its function is to isolate and provide specific treatment for Atrazine, likely due to unique trade policy considerations or specific import requirements enforced under Section 22 of the Agricultural Adjustment Act.