8430.31.00.40—Rock breaking machines
General
Free
Units
No.
Column 2
35%
Special
—
8430.31.00.40—Rock breaking machinesGeneral
Free
Units
No.
Column 2
35%
Special
—
HTS 8430.31.00.40 is the U.S. Harmonized Tariff Schedule classification for Rock breaking machines. It's a 10-digit statistical line in Chapter 84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof, Section XVI: Machinery and Mechanical Appliances; Electrical Equipment; Parts Thereof; Sound Recorders and Reproducers, Television Image and Sound Recorders and Reproducers, and Parts and Accessories of Such Articles, used by U.S. Customs and Border Protection to determine the duty rate at entry. 2 Chapter 99 tariff modifications currently stack on top of the base rate.
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Chapter 99 overlays that stack on the base rate
| Code | Authority | Rate |
|---|---|---|
| 9903.88.01 | section_301 | The duty provided in the applicable subheading plus 25% |
| 9903.88.06 | section_301 | The duty provided in the applicable subheading |
HTS 8430.31.00.40 is the U.S. Harmonized Tariff Schedule classification for Rock breaking machines. It belongs to Chapter 84 of the HTSUS.
The general (Column 1) duty rate for HTS 8430.31.00.40 is Free. This is the most-favored-nation (MFN) rate that applies to imports from World Trade Organization member countries.
The Column 2 rate for HTS 8430.31.00.40 is 35%. This rate applies to imports from countries that do not have normal trade relations with the United States (currently Cuba and North Korea).
Yes — HTS 8430.31.00.40 is covered by section_301 provision 9903.88.01 (The duty provided in the applicable subheading plus 25%). 1 additional overlay also touch this code. Open the code page for the full overlay stack with effective dates and country scopes.
No active AD/CVD orders currently flag HTS 8430.31.00.40 in Tandom's catalog. Tandom monitors Federal Register notices daily; a flag will appear here within 24h of any new order's publication.
Tandom guides relevant to this code
What the 178 active Section 301 exclusions cover, how to claim 9903.88.69 on an entry, and what changes when the November 10, 2026 deadline passes.
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