The tariff classification of dog toys from China

The tariff classification of human fecal specimens from various countries.

The tariff classification of human skin and nail specimens from the Virgin Islands, Costa Rica or Canada.

The tariff classification of dog treats consisting of dried animal bones with adhering meat, from Australia.

The tariff classification of a rawhide dog chew from China.

The tariff classification of human dental pulp cells in vials and hepatic colon carcinoma tissue arrays from Spain.