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
Chapter 84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof
Chapter 84 of the U.S. Harmonized Tariff Schedule covers Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof and sits within 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.
About Chapter 84
Chapter 84 contains 1,694 10-digit statistical lines grouped under 84 4-digit headings. Brokers, importers, and customs counsel use these codes to declare nuclear reactors, boilers, machinery and mechanical appliances; parts thereof on entry summaries (CBP Form 7501) and to look up the applicable Column 1, Special, and Column 2 duty rates.
General (Column 1) duty rates for ad-valorem lines in Chapter 84 range from 1% to 9.9%, with a median of 3.7%. About 54% of the chapter's lines (921 of 1694) enter duty-free under the general rate. Special-program rates (USMCA, KORUS, GSP, AGOA, and others) and Chapter 99 overlays modify these base rates for qualifying shipments.