Section VII · Plastics and articles thereof

3917.10

Artificial guts (sausage casings) of hardened protein or of cellulosic plastics materials:

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How this code is built
39

Chapter

Plastics and articles thereof

17

Heading

The product family within the chapter

10

Subheading

The specific good, identical worldwide

The first six digits are the same in every country that uses the Harmonized System. The United States adds two more for the tariff rate and, often, two more for statistics — which is why the rates below are listed against 8- and 10-digit numbers rather than against this code.

How the schedule reaches this code

  1. 39Plastics and articles thereof
  2. 3917Tubes, pipes and hoses and fittings therefor (for example, joints, elbows, flanges), of plastics:
  3. Artificial guts (sausage casings) of hardened protein or of cellulosic plastics materials:

Published US duty rates

Duty is set at the 8- or 10-digit line, not at this 6-digit subheading, so more than one rate can sit under this code.

  • 3917.10.10.00Of cellulosic plastics materialskg
    General
    6.5%
    Special (FTA)
    Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)

    Only if the goods qualify under one of these programs.

    Column 2
    60%

    Countries without normal trade relations.

  • 3917.10.60.00Of collagenkg
    General
    Free
    Special (FTA)
    —

    No preferential rate published.

    Column 2
    40%

    Countries without normal trade relations.

  • 3917.10.90.00Otherkg
    General
    4.2%
    Special (FTA)
    Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)

    Only if the goods qualify under one of these programs.

    Column 2
    40%

    Countries without normal trade relations.

This is the listed rate. Antidumping and countervailing duty orders, Chapter 99 actions and preference qualification all change what is actually collected, and classification is a judgement about your goods. Verify with your licensed customs broker before you file.

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Other subheadings in heading 3917

Source: U.S. International Trade Commission (USITC) — 2026 HTS Revision 20, released 2026-09-28, published at hts.usitc.gov. A U.S. Government work in the public domain.