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The Harmonized System is a standardized numerical method of classifying traded products. Typical nerd stuff.. we love it.
You may need to certify that the commodity being shipped to or from the USA is in compliance with the Toxic Substances Control Act (TSCA).
The Lacey Act of 1900 is a conservation law in the United States that prohibits trade in wildlife, fish, and plants that have been illegally harvested or trafficked.
Certain goods exported from the U.S. may fall under the jurisdiction of the U.S. Dept. of Commerce and require an Export Control Classification Number.