enforce it.
"Imported items generally require country of origin labeling. Section 304 of the Tariff Act of 1930, as amended, requires imported articles or containers to be marked with a country of origin label. This helps inform the "ultimate purchaser" in the U.S. about where the product wade. "
https://www.cbp.gov/trade/rulings/informed-compliance-publications/marking-country-origin-us-imports