Electric sound or visual signaling apparatus — HTS 8531
Electric sound or visual signaling apparatus (for example, bells, sirens, indicator panels, burglar or fire alarms), other than those of heading 8512 or 8530; parts thereof
Chapter 85 › Heading 8531
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 8531 covers electric equipment that gives an audible or visual signal. Examples include bells, sirens, indicator panels, burglar alarms, and fire alarms, along with parts designed for that equipment. It is a broad 4-digit heading, not the final classification for an imported product.
To reach the correct 8-digit HTSUS code, first determine what the item is and how it functions, then review the more specific subheadings and statistical breakouts under heading 8531. The available breakouts commonly distinguish the type of signaling apparatus or part, rather than relying only on the product’s material. The product’s principal function, construction, and condition at import can affect the result. Headings 8512 and 8530 must also be considered because items covered by those headings are excluded from 8531.
What to check
- Identify the product’s main signaling function: audible alarm, visual indicator, alarm system, panel, bell, siren, or a part.
- Check the full HTSUS structure below heading 8531 and compare every applicable 6-digit and 8-digit breakout; do not stop at the 4-digit heading.
- Confirm whether the item is a complete apparatus, a dedicated part, or a general electrical component that may classify elsewhere.
- Review headings 8512 and 8530 to verify that the product is not excluded from heading 8531 by its vehicle-lighting or railway/traffic-signaling function.
- Use the product specifications, wiring diagrams, photographs, manuals, and intended use to support the classification; ask a customs broker or obtain a binding ruling if the choice remains uncertain.
HTS heading 8531 summary
Electric sound or visual signaling apparatus 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 |
|---|---|
| 8531.80 | Other apparatus |
| 8531.90 | Parts |
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 |
|---|---|---|---|---|
| 8531.10.00 👉 | Burglar or fire alarms and similar apparatus | 1.3% | Free | 35% |
| 8531.20.00 👉 | Indicator panels incorporating liquid crystal devices (LCD's) or light emitting diodes (LED) | 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 8531?
Electric sound or visual signaling apparatus (for example, bells, sirens, indicator panels, burglar or fire alarms), other than those of heading 8512 or 8530; parts thereof. 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.