0406.40.51.00 - In original loaves

This HTS classification, 0406.40.51.00, specifically covers blue-veined cheeses that are presented in their original, unprocessed loaves. These cheeses are characterized by the distinctive blue or green mold veins produced by *Penicillium roqueforti*, creating a unique aroma and flavor profile. The key differentiator for this subheading is the form in which the cheese is imported – as intact, original loaves, signifying a stage of production prior to further cutting, processing, or packaging for retail sale.

This category is distinct from its sibling, 0406.40.52.00 ("Other"), which would encompass blue-veined cheeses that do not meet the "in original loaves" criterion. For example, if the blue-veined cheese has been cut into blocks, sliced, or otherwise portioned from its original loaf, it would fall under the "Other" subheading. The emphasis here is on the presentation of the cheese as a whole, unprocessed unit.

As this is a leaf node within the HTS classification system, there are no further subcategories. Therefore, the focus remains on accurately identifying blue-veined cheeses that are imported in their original loaf form, adhering to the conditions outlined in general note 15 of the tariff schedule. Careful consideration of the cheese's physical state upon import is crucial for correct classification under this specific code.