4403.99.01.50 - Of western red alder (Alnus rubra)

This HTS classification, 4403.99.01.50, specifically covers wood in the rough, whether or not stripped of bark or sapwood, or roughly squared, that is derived from the western red alder (Alnus rubra) species. This includes logs, poles, pilings, and similar unprocessed wood forms made exclusively from this particular type of alder. The classification falls under the broader category of "Other" woods that are not specifically enumerated at higher levels of the tariff schedule, but are distinguished by their species.

The key differentiator for this category lies in the precise botanical origin of the wood. Unlike sibling categories that classify rough wood from ash, cherry, maple, walnut, or paulownia, this code is exclusively for western red alder. Therefore, accurate identification of the wood species is paramount for correct classification. Any rough wood not originating from western red alder, even if it shares similar physical characteristics, would be classified under a different HTS code.

As this node represents a "leaf node" within the HTS structure, there are no further subcategories to detail. Classification is complete at this level once the material is confirmed as rough wood and definitively identified as western red alder. This ensures precise tracking and appropriate duty assessment for imports and exports of this specific timber product.