3917.29.00 - Of other plastics

This category, HTS 3917.29.00, encompasses rigid tubes, pipes, and hoses made from plastics, excluding those specifically classified under polymers of ethylene, propylene, or vinyl chloride. The defining characteristic is the material composition of the plastic. If the rigid plastic tube, pipe, or hose is not manufactured from the aforementioned specific polymers, it falls under this "of other plastics" designation. Examples include rigid pipes and tubes made from polystyrene, polycarbonate, or acrylonitrile-butadiene-styrene (ABS) copolymers, provided they are not primarily composed of the excluded polymers.

Distinguishing this category from its siblings is crucial for accurate classification. HTS 3917.21.00.00 specifically covers rigid tubes and pipes of polymers of ethylene (like polyethylene), 3917.22.00.00 is for polymers of propylene (polypropylene), and 3917.23.00.00 is for polymers of vinyl chloride (PVC). Therefore, if a rigid plastic tube's primary constituent polymer is any plastic other than these three, it is correctly classified under 3917.29.00. The physical form as a rigid tube, pipe, or hose remains a common element across these siblings.

The subdivisions within this category, 3917.29.00.50 and 3917.29.00.90, differentiate based on length. The subcategory .50 applies to rigid tubes, pipes, and hoses of other plastics that are less than 200 millimeters in length. The remaining items, those 200 millimeters or greater in length, or any other rigid tubes, pipes, and hoses of other plastics not otherwise specified, fall under the residual subcategory .90. This distinction facilitates more granular statistical tracking and potential duty rate differentiation.