3603.50.00.00
Igniters
Safety fuses; detonating cords; percussion or detonating caps; igniters; electric detonators
Data provenance: Rates from HTS Revision 16 (Aug 15, 2026); trade measures verified against CBP CSMS and Federal Register notices through Aug 15, 2026.
Duty rates
Column 1 (General / MFN)
0.2%
Column 2 (Non-NTR)
0.3%
Column 1 (Special / FTA)
Free
Eligible
The rates above are statutory column rates. Trade remedies in Chapter 99 (Section 301, 232, IEEPA, reciprocal) and FTA preferences can change the duty owed on a given entry — see below.
Trade measures (Chapter 99)
9903.90.08
35%
ActiveArticles the product of the Russian Federation, as provided for in U.S. note 30(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 30(b) to this subchapter
Applies to origin: RU, BY
Effective from April 5, 2025
Rate-change history
What the rate was before, and when it changed. The government schedule replaces each revision in place; we keep the timeline.
-
NEW_PROGRAM Executive Order Feb 1, 2026 — Reciprocal Tariff (FR 2026-03824)
Section 122 reciprocal surcharge in effect — additional 10% on most imports through July 24, 2026
See the change → -
Base rate HTS 2023
Column 1 general rate set to 0.2%.
Related CBP rulings
The tariff classification of electric detonators from Mexico or the Czech Republic
Oil*Star A-140 Short Detonator 1.4B (Part number 32OS1400-0000000-4B1FDM1) and Oil*Star A-140S Detonator 1.4B (Part number 32OS140S-0000000-4B1FDM1) are specially designed electric detonators used in the oil and gas industry for wireline pe
The tariff classification of percussion primers from Bosnia-Herzegovina
The products identified in your letter are “Primer 4, 5/3-P1 for small pistol,” “Primer 5, 5/3-P2 for large pistol MAGNUM,” “Primer 4, 5/3-P3 for small rifle,” and “Primer 4, 5/3-1 for 5.56 [NATO].” They are boxer primers, which will be fix
The tariff classification of explosive based detonating cords from various countries.
You provided Technical Information and Material Safety Data Sheets for our review. The products are described as detonating cord consisting of woven textile with a protective explosive core of pentaerythritol tetranitrate (PETN), cyclotrime
The tariff classification of electric micro gas generators from France, the United States, Mexico and Romania.
Your sample of an inert electric micro gas generating unit is being returned. The Autoliv #6091815-A01 Initiator Universal Tether Cutter consists of a small steel cylinder containing two copper wires, an ignition charge and a metal piston-s
Classification of Lightning Thermo Tube explosive based shock tubing from Brazil.
Classification of Lightning Thermo Tube explosive based shock tubing from Brazil.
Tariff classification of an electric lead wire micro gas generator from Sweden.
Tariff classification of an electric lead wire micro gas generator from Sweden.
The tariff classification of percussion primers, musket caps and percussion caps from France.
The products are described as 1. percussion primers for rifle, pistol and shotgun cartridges; 2. musket caps for muzzle-loading rifles; and 3. percussion caps for muzzle-loading pistols and revolvers. Explanatory Note 36.03(B)(1), Harmonize
Classification of igniter for gas generator from Switzerland.
The product is a small squib-like electric igniter used to activate air bags. The igniter consists of an electric fuse head in a small metal cup containing a small ignition charge of primary explosive and a somewhat larger propellant charge
Classification of an igniter for a gas generator from Germany
The product is a small squib-like electric igniter used to activate air bags. The igniter consists of an electric fuse head in a small metal cup containing a small ignition charge of primary explosive and a somewhat larger propellant charge
The tariff classification of an electric micro-gas generator (MGG).
The micro-gas generator (MGG) is described as a small squib-like electric igniter used to activate seat belt retractors. The MGG consists of an electric fuse head in a small metal cup containing a small ignition charge of primary explosive
The classification of the Dynamit Nobel EL 2X5 Series Electric Igniter from Germany.
of Closter, New Jersey. The Dynamit Nobel EL 2X5 Series Electric Igniter is described as a pyrotechnical active resistor consisting of a thin metal layer on a ceramic substrate along with the ends of two gold plated pins hermetically sealed
Internal Advice Request 40/94; 19 CFR 177.11(b)(2); potassium permanganate; ethylene glycol; ignition devices
Pursuant to 19 CFR 177.11(b)(2), Aerostat has requested a written ruling concerning the classification under the Harmonized Tariff Schedule of the United States (Annotated) ("HTSUSA") of potassium permanganate crystals encased in a plastic
Other codes in heading 3603
Duty by origin country
The rate above is the statutory base. Total landed duty depends on origin — see the calculated rate for 3603.50.00.00 from each major US trading partner.
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