How many ways are there to classify things? When my kids were little my mother bought them way too many Beanie Babies, but sometimes it was fun (and kind of educational) to classify them. The Beanie Babies could be organized by type of animal or by color or by what they ate or type of habitat.
You could say that governments do the same thing with goods. Sometimes goods are classified on the basis of their objective characteristics. Sometimes they are classified based on their use. Today I’m going to compare two types of classifications, the Harmonized System (HS) codes and the Export Control Classification Numbers (ECCN).