9902.04.57 - trans-4-{[(2-Methyl-2-propanyl)oxy]carbonyl}cyclohex- anecarboxylic acid (CAS No. 53292-89-0) (provided for in subheading 2924.29.95)

This HTS classification, 9902.04.57, falls under Section XXII, which pertains to Temporary Legislation and Special Classification Provisions. Specifically, it is nested within Chapter 99, designated for temporary measures and modifications proclaimed under trade agreements or section 22 of the Agricultural Adjustment Act. This particular code covers a specific chemical compound: trans-4-{[(2-Methyl-2-propanyl)oxy]carbonyl}cyclohexanecarboxylic acid, identified by CAS Number 53292-89-0. Its presence in this chapter signifies that its classification and import treatment are subject to temporary restrictions or provisions, rather than being permanently assigned to a standard HTS chapter.

This category is unique in that it is a leaf node within Chapter 99, meaning it does not have further subdivisions. Therefore, its distinction from "siblings" at this level is inherently defined by its specific chemical name and CAS number. Unlike the broad categories found in other chapters, such as live animals in Chapter 01, this entry is highly specific, denoting a precise substance subject to special import regulations. The "provided for in subheading 2924.29.95" notation indicates that while this compound is subject to the temporary provisions of Chapter 99, its underlying chemical nature would otherwise place it within the broader category of other acyclic amides, cyclic amides (including carbamates), and their derivatives in Chapter 29.

The purpose of classifying this compound under 9902.04.57 is to impose or manage specific import conditions beyond its standard chemical classification. This could include quantitative restrictions, special licensing requirements, or temporary duty modifications, all enacted under the authorities granted by trade agreements or Section 22 of the Agricultural Adjustment Act. Importers must consult the specific proclamations and regulations associated with this HTS code to understand the full scope of import requirements, as these temporary provisions can change.