1514.91 - Crude oil:

This HTS category, 1514.91, encompasses crude oils of rapeseed, colza, or mustard that are not specifically designated for refined use or chemical modification. It includes the initial, unprocessed forms of these oils, where impurities and non-oil components are still present, and the oil has not undergone processes to remove them or alter its chemical structure. The term "crude" here signifies the unrefined state of the oil, as extracted from the seed.

Within Chapter 15, which deals with animal and vegetable fats and oils, this specific heading falls under the broader category of "Rapeseed, colza or mustard oil, and fractions thereof, whether or not refined, but not chemically modified." The "Other" designation at this level distinguishes it from any potential specific subtypes or preparations of these oils that might be classified elsewhere. It serves as a catch-all for crude versions of these particular oil types not otherwise enumerated.

The subcategories under 1514.91 further refine the classification based on the intended end-use or remaining characteristics of the crude oil. Category 1514.91.10.00 is specifically for crude rapeseed, colza, or mustard oil designated for use in the manufacture of rubber substitutes or lubricating oils, indicating a functional application that may tolerate certain impurities. Conversely, 1514.91.90 captures all other crude forms of these oils that do not meet the specific end-use criteria of the preceding subcategory.