Heading 3603
HTS code 3603 — Safety fuses; detonating cords; percussion or detonating caps; igniters; electric detonators
- Tariff lines
- 6
- General duty
- General duty rates from 0.2% to 4.2%
Tariff lines under heading 3603
Full 10-digit codes with their general (MFN) duty rates. The correct line depends on the product's material, construction, and use.
| HTS code | Description | General rate | Unit |
|---|---|---|---|
| 3603.10.0000 | Safety fuses (Safety fuses; detonating cords; percussion or detonating caps; igniters; electric detonators) | 3% | thousand m |
| 3603.20.0000 | Detonating cords (Safety fuses; detonating cords; percussion or detonating caps; igniters; electric detonators) | 3% | thousand m |
| 3603.30.0000 | Percussion caps (Safety fuses; detonating cords; percussion or detonating caps; igniters; electric detonators) | 4.2% | thousands |
| 3603.40.0000 | Detonating caps (Safety fuses; detonating cords; percussion or detonating caps; igniters; electric detonators) | 0.2% | No. |
| 3603.50.0000 | Igniters (Safety fuses; detonating cords; percussion or detonating caps; igniters; electric detonators) | 0.2% | No. |
| 3603.60.0000 | Electric detonators (Safety fuses; detonating cords; percussion or detonating caps; igniters; electric detonators) | 0.2% | No. |
Documents required to import under 3603
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
- Safety Data Sheet (SDS/MSDS)Required
- EPA TSCA CertificationConditional
Required for chemical substances regulated under TSCA
- EPA Notice of Arrival (Form 3540-1)Conditional
Required for pesticides and devices (typically Ch. 38)
Common questions
- What is HTS code 3603?
- HTS heading 3603 covers safety fuses; detonating cords; percussion or detonating caps; igniters; electric detonators. It sits in Chapter 36 (explosives and pyrotechnics) of the US Harmonized Tariff Schedule and contains 6 tariff lines.
- What is the duty rate for HTS 3603?
- General duty rates from 0.2% to 4.2%. 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 3603 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 36
- 3601Propellant powders
- 3602Prepared explosives, other than propellant powders
- 3604Fireworks, signaling flares, rain rockets, fog signals and other pyrotechnic articles
- 3605Matches, other than pyrotechnic articles of heading 3604
- 3606Ferrocerium and other pyrophoric alloys in all forms; articles of combustible materials as specified in note 2 to this chapter