U.S. exports of Tar-, Bitumen-, or Asphalt-Coated or Impregnated Paper and Paperboard (HS 481110) totaled $617K in August 2026.
Importers of Tar-, Bitumen-, or Asphalt-Coated or Impregnated Paper and Paperboard paid $12K in duties in August 2026, an average duty rate of 7.23% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Tar-, Bitumen-, or Asphalt-Coated or Impregnated Paper and Paperboard imports of $172K in August 2026 ran 20% below the year-to-date monthly average of $214K.
Last updated: August 2026 dataRoofing underlayment, waterproofing membranes, and construction-grade moisture barriers are the primary commercial applications for paper and paperboard saturated or coated with tar, bitumen, or asphalt. The US schedule divides the heading between two 10-digit lines — 4811101100 and 4811102100 — reflecting different product configurations within this construction-materials niche. Canada is the dominant supplier, consistent with its role as a major exporter of building-products inputs to the US market, with China and Germany also contributing volume. Classification hinges on confirming that the impregnating or coating substance is tar, bitumen, or asphalt rather than wax, plastic, or another compound, which would redirect the goods to a different subheading.
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18 import shipments a month
The distinction turns on the chemical identity of the coating or impregnating agent. Laboratory analysis or a supplier's material safety data sheet confirming a bituminous or asphaltic compound supports classification here. Wax- or paraffin-treated paper falls under heading 481160, and plastic-coated paper falls under heading 481151 or 481159, so accurate material documentation is critical.
While HTS classification itself does not impose end-use restrictions, roofing underlayment products may be subject to building-code compliance standards (such as ASTM specifications) that affect marketability in the US. Importers should verify that the product meets applicable ASTM or ICC standards required by downstream contractors or distributors, separate from customs entry requirements.
Subheading 7 of 7 in heading 4811
Subheading 481110 · $617K of $164.4M
ImportsExports
Imports
$172KYoY · free account
Exports
$617KYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $2.8M of Tar-, Bitumen-, or Asphalt-Coated or Impregnated Paper and Paperboard and exported $6.8M.
Through August 2026. Source: U.S. Census Bureau.
Trade Directory
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HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 4811101100 | Ppr/Pbrd Ctd/Impreg W/Tar Bitumen/Asphalt Etc | $136K | 4.37% | 43.73% | $6K |
| 4811102100 | Ppr/Pbr Coatd/Impreg Wth Tar Bitumen/Asphalt NESOI | $36K | 17.96% | 93.24% | $7K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 4811101100 | Ppr/Pbrd Ctd/Impreg W/Tar Bitumen/Asphalt Etc | $311K |
| 4811102100 | Ppr/Pbr Coatd/Impreg Wth Tar Bitumen/Asphalt NESOI | $306K |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Exports · August 2026
destination
Mexico and Turkey together take 57% of it.
customs district
origin
entry
rate provision · imports
45.9% enters free of duty; duty collected equals 7.23% of imports for consumption.