Boards — HTS 8537
Boards, panels, consoles, desks, cabinets and other bases, equipped with two or more apparatus of heading 8535 or 8536, for electric control or the distribution of electricity, including those incorporating instruments or apparatus of chapter 90, and numerical control apparatus, other than switching apparatus of heading 8517
Chapter 85 › Heading 8537
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 8537 covers assembled electrical control or distribution units—such as boards, panels, consoles, desks, cabinets, and similar bases—that contain two or more devices covered by heading 8535 or 8536. In plain language, it generally applies to an enclosure or mounting base fitted with multiple electrical switching, protection, connection, or control devices. It can also include units incorporating certain Chapter 90 instruments or numerical-control equipment, while excluding switching apparatus classified in heading 8517.
Heading 8537 is only a 4-digit category, not the final tariff classification. To reach the correct 8-digit HTSUS subheading, first confirm that the product meets the heading’s assembly and function requirements, then follow the applicable subheading structure. The narrower choices commonly distinguish the unit by factors such as its electrical characteristics, control or distribution function, and the material or type of the base or enclosure. The exact wording and any additional notes in the current HTSUS control the result.
What to check
- Count and identify the built-in apparatus: verify that the unit contains at least two qualifying devices from heading 8535 or 8536, rather than merely being an empty enclosure or a single device.
- Describe the product’s principal function—control, distribution, switching, protection, or numerical control—and check whether another heading more specifically covers the complete equipment.
- Confirm the base or enclosure type and material, because subheading distinctions may depend on how the unit is constructed or classified.
- Review the current 8-digit HTSUS descriptions, section and chapter notes, and relevant statistical suffixes; do not rely only on a product name or supplier description.
- Keep technical drawings, wiring diagrams, component lists, voltage information, and photographs, and ask a customs broker or request a binding ruling when the assembly or its principal function is unclear.
HTS heading 8537 summary
Boards is a 4-digit product category containing 1 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 |
|---|---|
| 8537.10 | For a voltage not exceeding 1,000 V |
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 |
|---|---|---|---|---|
| 8537.20.00 👉 | For a voltage exceeding 1,000 V | 2.7% | 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 8537?
Boards, panels, consoles, desks, cabinets and other bases, equipped with two or more apparatus of heading 8535 or 8536, for electric control or the distribution of electricity, including those incorporating instruments or apparatus of chapter 90, and numerical control apparatus, other than switching apparatus of heading 8517. 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.