Heading 8546

HTS code 8546 — Electrical insulators of any material

Chapter
85 — Electrical machinery and electronics
Tariff lines
5
General duty
General duty rates from 2.9% to 3%, with 1 duty-free line

Tariff lines under heading 8546

Full 10-digit codes with their general (MFN) duty rates. The correct line depends on the product's material, construction, and use.

HTS codeDescriptionGeneral rateUnit
8546.10.0000Of glass (Electrical insulators of any material)2.9%No.
8546.20.0030Commonly known as suspension, pin-type or line post insulators (Electrical insulators of any material > Of ceramics > Used in high-voltage, low-frequency electrical systems)3%No.
8546.20.0060Other (Electrical insulators of any material > Of ceramics > Used in high-voltage, low-frequency electrical systems)3%No.
8546.20.0090Other (Electrical insulators of any material > Of ceramics)3%No.
8546.90.0000Other (Electrical insulators of any material)FreeNo.

Documents required to import under 8546

Customs paperwork typically required to import these goods into the United States. Conditional items depend on shipment value, transport mode, or origin.

  • Commercial InvoiceRequired
  • Packing ListRequired
  • Bill of Lading / Airway BillRequired
  • CBP Entry Summary (7501)Required

    Prepared and filed by your customs broker

  • CBP Entry / Release (3461)Required

    Prepared and filed by your customs broker

  • Customs Bond (CBP 301)Conditional

    Required for formal entries — generally shipments valued over $2,500

    Single-entry or continuous bond, obtained through your broker or a surety

  • Importer Security Filing (ISF "10+2")Conditional

    Required for ocean freight only

    Filed electronically at least 24 hours before loading at the foreign port

  • Importer ID Input Record (CBP 5106)Conditional

    Required to establish or update your importer-of-record number with CBP

    One-time setup for a new importer; not filed per shipment

  • Entry Manifest (CBP 7533)Conditional

    Alternative to the 3461 for informal, low-value, or contiguous-country entries

  • FCC Declaration (Form 740)Conditional

    Required for electronic devices that emit radio frequency

  • FDA Radiation Declaration (Form 2877)Conditional

    Required for products that emit radiation (X-ray, laser, microwave, etc.)

Common questions

What is HTS code 8546?
HTS heading 8546 covers electrical insulators of any material. It sits in Chapter 85 (electrical machinery and electronics) of the US Harmonized Tariff Schedule and contains 5 tariff lines.
What is the duty rate for HTS 8546?
General duty rates from 2.9% to 3%, with 1 duty-free line. The general rate applies to most-favoured-nation trading partners; goods from countries with a free trade agreement may qualify for a reduced or duty-free special rate.
How many digits does a full HTS code have?
US import entries require the full 10-digit HTS code. Heading 8546 is the first four digits — the remaining six narrow it down to the specific product, which is what determines the duty rate you actually pay.

Related headings in Chapter 85