HTS code 9815.00.20.00 covers "Products of American fisheries (including fish, shellfish and other marine animals, spermaceti and marine animal oils), which have not been landed in a foreign country, or which, if so landed, have been landed solely for transshipment without change in condition" under the US Harmonized Tariff Schedule. This is the official duty rate charged by US Customs when this product is imported into the United States, sourced directly from the U.S. International Trade Commission and refreshed daily.