Motorized and non-motorized invalid carriages — commonly known as wheelchairs and mobility scooters — occupy a distinct classification in the SITC schedule that separates them from both motor vehicles and medical devices. Duty treatment can differ significantly depending on whether the carriage is manually propelled, battery-powered, or otherwise mechanically driven, making the propulsion method a critical classification variable. Importers should also note that powered mobility devices may attract additional regulatory scrutiny from the FDA as durable medical equipment, depending on their design and intended use.

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