9902.16.09 - AC electric motors of an output exceeding 37.5w but not exceeding 72w, single phase, each equipped with a capacitor, a speed control mechanism, and a motor mount of plastics and a self-contained gear mechanism for oscillation (provided for in subheading 8501.40.20).

This HTS category, 9902.16.09, specifically covers AC electric motors designed for particular applications. These motors are characterized by their output range, falling between 37.5 watts and 72 watts. They are single-phase, and crucially, are equipped with a capacitor, a speed control mechanism, and a plastic motor mount. A key distinguishing feature is the integrated self-contained gear mechanism for oscillation, which dictates their functional purpose. These motors are classified under this provision because they are "provided for in subheading 8501.40.20" within the main HTS structure, indicating specific existing tariff treatment.

As a node within Chapter 99, "Temporary legislation; temporary modifications proclaimed pursuant to trade agreements legislation; additional import restrictions proclaimed pursuant to section 22 of the Agricultural Adjustment Act, as amended," this category operates under special provisions rather than being a standard product classification. This means the goods classified here are subject to unique import conditions, temporary duties, or restrictions that deviate from their primary tariff classification under Chapter 85. The sibling categories at the root level of the HTS Database (e.g., 0101 for live horses, 0102 for live bovine animals) are entirely unrelated, dealing with agricultural products and livestock, and serve to illustrate the vast scope of the HTS system beyond this specific chapter.

Since HTS code 9902.16.09 is a leaf node, there are no further subcategories. Classification decisions within this specific provision will hinge on the precise adherence to all stated physical and functional criteria: the output wattage, single-phase operation, presence of a capacitor, speed control, plastic mount, and the self-contained oscillating gear mechanism. Any deviation from these specifications would necessitate re-evaluation to determine if the product falls under a different HTS classification, either within Chapter 85 or another provision within Chapter 99.