Chapter 84

Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof

Part of Section XVI: Machinery and mechanical appliances; electrical equipment; parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers

Products in this chapter are classified to a 6-digit HS subheading, then extended to the country full code (8–12 digits). Note the relevant Section and Chapter Notes — under GIR 1 they are legally binding for classification.

Scope and classification criteria

Chapter 84 covers nuclear reactors, boilers, machinery and mechanical appliances, including many automatic data-processing machines. Classification depends on the machine's objective function, construction and the legal Notes, not its trade name.

Common classification boundaries

Frequent boundary questions include complete machines versus parts, computers versus function-specific machines, and machines performing more than one function. Review Section XVI Notes 2, 3 and 4 and Chapter 84 Note 6 before selecting a heading.

Official source

USITC Harmonized Tariff Schedule

HS 2022 · Content updated September 5, 2026

Classify a product in chapter 84

HS classification articles

Chapter 84 classification guides

Laptop HTS code 8471.30.0100: a US customs classification guide 2026A fact-driven guide to classifying a complete laptop under HTSUS 8471.30.0100, with Chapter 84 Note 6, CBP rulings and the limits of the conclusion.