9902.15.92 - Dosing module injectors, comprising parts of compression-ignition engine after-combustion treatment systems, measuring 30 cm or more but not over 50 cm in length, 30 cm or more but not over 50 cm in width and 10 cm or more but not over 30 cm in height (provided for in subheading 8481.80.90), such injectors other than used

This HTS category, 9902.15.92, specifically covers dosing module injectors that are components of compression-ignition engine after-combustion treatment systems. These particular injectors are defined by their physical dimensions, measuring between 30 cm and 50 cm in length and width, and 10 cm and 30 cm in height. It is crucial to note that this classification applies to such injectors *other than* those used in specific, as yet undefined, contexts.

Unlike the primary product categories found at the HTS Database Root level, which deal with broad classifications of goods such as live animals (Chapters 01), this category falls under Section XXII, "Special Classification Provisions." This signifies that its application is governed by temporary legislation, modifications under trade agreements, or specific import restrictions, rather than the general commodity classification. Therefore, it does not have direct product siblings in the same way a Chapter 01 heading would.

As a leaf node within the HTS structure, HTS 9902.15.92 does not have further subcategories. Classification under this heading is determined by the precise nature of the part (dosing module injector), its intended function (part of after-combustion treatment systems for compression-ignition engines), and its adherence to the specified dimensional criteria. The explicit exclusion of "other than used" injectors further refines the scope, necessitating careful consideration of the injector's intended or current application to ensure correct classification.