Enclosed boxcars and other covered freight wagons that protect cargo from weather — and that do not fall into the tank-car or self-discharging categories — are classified under 8606910000. The 'NESOI' (not elsewhere specified or included) qualifier means this line captures covered designs not specifically enumerated in other 8606 subheadings, such as insulated boxcars or ventilated grain wagons. Classification hinges on confirming the car is fully enclosed and lacks a self-discharge mechanism.

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