Monofilament of which any cross-sectional dimension exceeds — HTS 3916
Monofilament of which any cross-sectional dimension exceeds 1 mm, rods, sticks and profile shapes, whether or not surface-worked but not otherwise worked, of plastics
Chapter 39 › Heading 3916
2026 HTS Rev 19 Synced Rules verified Operational
Written to help non-specialists understand this page. Rates, dates, and legal facts come from the official records above and on the linked source.
HTS heading 3916 is a broad product category for certain plastic forms that are made in a continuous or shaped profile. It covers plastic monofilament with a cross-sectional dimension exceeding 1 mm, as well as plastic rods, sticks, and profile shapes. These goods may be surface-worked—for example, cut, polished, or otherwise finished on the surface—but must not be further worked into a more advanced article. The heading applies to plastics generally, not to one particular polymer.
To reach the correct 8-digit HTSUS code, first confirm that the item belongs in heading 3916 and meets the product-form and “not otherwise worked” conditions. Then use the heading’s subheadings and tariff descriptions to narrow the classification, commonly by the kind of plastic or other specified product type. The final digits identify the more specific statistical classification and may depend on details such as polymer composition, shape, dimensions, and processing. The official HTSUS wording and any applicable notes control.
What to check
- Confirm that the product is a monofilament, rod, stick, or profile shape made of plastic, rather than a finished part or other article.
- Measure and document the cross-sectional dimensions for monofilament; the heading requires a dimension exceeding 1 mm.
- Identify the primary polymer or plastic material from supplier specifications, safety data, or technical documentation, and match it to the applicable subheading description.
- Check whether cutting, drilling, machining, assembly, or another operation made the item into a more specific finished article; “surface-worked” is different from “otherwise worked.”
- Compare the complete product description, material evidence, and official HTSUS notes with the candidate 8-digit provisions; request a customs-broker review or binding ruling when the classification is uncertain.
HTS heading 3916 summary
Monofilament of which any cross-sectional dimension exceeds is a 4-digit product category containing 2 published product-code lines in this snapshot. A heading does not carry one universal duty rate; classification must be narrowed to the line matching the product facts.
How to find your code in this category
A heading is a product category. To get the exact duty, narrow from this 4-digit heading to a sub-category (usually by material), then open the 8-digit code that matches your product.
Open any code in the tables below to see its exact duty rate, a duty calculator (enter your shipment value → estimated duty and landed cost), the rate-change history chart, and the country-by-country breakdown (including Section 301/232 add-on duties).
Why you have to click in: a single category can contain products with very different duties. The rate depends on the specific product — its material and construction — and on the country of origin, and those only get pinned down at the 8-digit code level. That is why this page points you to codes instead of showing one rate for the whole category.
Sub-categories
| Code | Description |
|---|---|
| 3916.90 | Of other plastics |
Product codes & duty rates
👇 Each row is a specific product code — click a blue code to open its full page with exact duty rates by country, the rate-history chart, and a duty calculator. 👉
| Code | Description | General (MFN) | Special | Column 2 |
|---|---|---|---|---|
| 3916.10.00.00 👉 | Of polymers of ethylene | 5.8% | Free | 35% |
| 3916.20.00 👉 | Of polymers of vinyl chloride | 5.8% | Free | 35% |
"Special" shows the free-trade-agreement rate; open a code to see exactly which countries qualify.
Common questions
What products fall under HTS heading 3916?
Monofilament of which any cross-sectional dimension exceeds 1 mm, rods, sticks and profile shapes, whether or not surface-worked but not otherwise worked, of plastics. To classify a specific item you must pick the matching sub-category and 8-digit code above; the right choice usually depends on the material and construction of the product.
How do I choose the right code within this category?
Start from the sub-categories (typically divided by material—for example cotton versus man-made fibers), then open the active 8- or 10-digit code that matches the product. When unsure, a licensed customs broker or a CBP binding ruling can confirm the classification.
Reference information only, not customs, legal, or classification advice. Confirm the current code and rate against the official HTS before you import.