Key facts
- HS code
- 3603.40
- Covers
- Detonating caps
- Heading
- 36.03: Safety fuses; detonating cords; percussion or detonating caps; igniters; electric detonators
- Chapter
- 36: Explosives; pyrotechnic products; matches; pyrophoric alloys; certain combustible preparations
- Edition
- HS2022
- Duty rates
- Set by each country’s tariff
Summary
HS code 3603.40 covers detonating caps. It sits in heading 36.03 (safety fuses; detonating cords; percussion or detonating caps; igniters; electric detonators) in chapter 36 (explosives; pyrotechnic products; matches; pyrophoric alloys; certain combustible preparations). Other goods of heading 36.03 are classified under 3603.10 (safety fuses), 3603.20 (detonating cords), 3603.30 (percussion caps), 3603.50 (igniters) or 1 other.
What this code covers
HS code 3603.40 covers detonating caps.
The legal text of the subheading is “Detonating caps”, in HS2022.
How it is structured
3603.40 is a six-digit subheading. Its first two digits, 36, are the chapter; the first four, 3603, are heading 36.03; the last two, 40, identify the subheading within the heading.
Countries add their own digits after these six for their national tariff lines.
- Chapter 36
- Explosives; pyrotechnic products; matches; pyrophoric alloys; certain combustible preparations
- Heading 36.03
- Safety fuses; detonating cords; percussion or detonating caps; igniters; electric detonators
- Subheading 3603.40
- Detonating caps
In other countries
No national tariff lines under 3603.40 are live on border.bot yet. Tariffs built on the Harmonized System (HS2022) use 3603.40 at six digits and add their own digits after it.
Frequently asked questions
What does HS code 3603.40 cover?
HS code 3603.40 covers detonating caps.
Which heading and chapter is HS code 3603.40 in?
HS code 3603.40 is in heading 36.03 (safety fuses; detonating cords; percussion or detonating caps; igniters; electric detonators) in chapter 36 (explosives; pyrotechnic products; matches; pyrophoric alloys; certain combustible preparations).
Where are goods of heading 36.03 classified when 3603.40 doesn’t fit?
Other goods of heading 36.03 are classified under 3603.10 (safety fuses), 3603.20 (detonating cords), 3603.30 (percussion caps), 3603.50 (igniters) or 1 other.
Sources and updates
The Harmonized System legal text comes from border.bot release 1 (edition HS 2022), imported from a file, and has been live since 13 October 2026.
This page was last updated on 13 October 2026.
Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.