0101 - Live horses, asses, mules and hinnies:

This HTS category, 0101, exclusively covers live horses, asses, mules, and hinnies. It serves as the primary classification for these specific equine species when imported or exported. The distinction is important as other chapters and headings within the HTS deal with different types of live animals.

Unlike sibling categories such as 0102 (live bovine animals) or 0103 (live swine), HTS 0101 is narrowly focused on equidae. This means that any live animal that is not a horse, ass, mule, or hinny, even if it is another mammal, would fall under a different HTS code, most likely 0106 for "Other live animals."

Within this heading, further subdivisions exist to differentiate between the types of equidae. For instance, the category "Horses:" (though not fully specified in the provided data) would likely represent purebred or specific breeds of horses, while 0101.30.00.00 specifically enumerates asses. The "Other:" subcategory, 0101.90, is designed to capture any remaining classifications of mules and hinnies not otherwise detailed, ensuring comprehensive coverage of all eligible equidae.