HTS code 2714.10.00.00 covers "Bitumen and asphalt, natural; bituminous or oil shale and tar sands; asphaltites and asphaltic rocks › Bituminous or oil shale and tar sands" 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.