HTS code 4811.41.21.00 covers "Paper, paperboard, cellulose wadding and webs of cellulose fibers, coated, impregnated, covered, surface-colored, surface-decorated or printed, in rolls or rectangular (including square) sheets, of any size, other than goods of the kind described in heading 4803, 4809 or 4810 › Tarred, bituminized or asphalted paper and paperboard › Self-adhesive › In strips or rolls of a width exceeding 15 cm or in rectangular (including square) sheets with one side exceeding 36 cm and the other side exceeding 15 cm in the unfolded state › In strips or rolls" 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.