9902.04.31 - 3-(3,4-Dichlorophenyl)-1-methoxy-1-methylurea (CAS No. 330-55-2) (Linuron) (provided for in subheading 2924.21.16)

This HTS category, 9902.04.31, specifically covers the herbicide known as Linuron (3-(3,4-Dichlorophenyl)-1-methoxy-1-methylurea), identified by CAS Number 330-55-2. This classification is part of Chapter 99, which deals with temporary legislation, modifications proclaimed under trade agreements, and additional import restrictions under Section 22 of the Agricultural Adjustment Act. The inclusion within Chapter 99 signifies that this particular tariff provision is subject to special rules or quantitative limitations that deviate from the standard tariff structure for chemical compounds.

While other HTS codes exist for various chemical substances under different chapters (e.g., Chapter 29 for organic chemicals), this specific subheading within Chapter 99 is designated for Linuron due to specific trade policy considerations or import restrictions. Therefore, its distinction from sibling categories lies not in its inherent chemical properties but in its application of temporary or restricted trade measures. This means that classifying Linuron here is contingent on the prevailing trade regulations and import status designated for this compound, overriding its classification under a general chemical tariff chapter.

As this is a leaf node, there are no further subcategories. Classification under 9902.04.31 is definitive for Linuron when subject to the provisions of Chapter 99. Importers must ensure they are aware of the specific regulations, quotas, or restrictions associated with this subheading at the time of importation. The "provided for in subheading 2924.21.16" note indicates the primary classification of Linuron as a cyclic urea derivative under Chapter 29, but the designation in Chapter 99 takes precedence for import purposes under specific trade policy.