HS chapter 84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof
Last updated
Key facts
- Chapter
- 84
- Description
- Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof
- Headings
- 86
- Subheadings
- 538
- Edition
- HS2022
Summary
HS chapter 84 covers nuclear reactors, boilers, machinery and mechanical appliances; parts thereof. It has 86 headings, 84.01 to 84.87, and 538 six-digit subheadings in HS2022. National tariff lines under chapter 84 are live on border.bot for the United States (1,706 lines, also used by 1 other country).
What this chapter covers
HS chapter 84 covers nuclear reactors, boilers, machinery and mechanical appliances; parts thereof.
It has 86 headings, 84.01 to 84.87, and 538 six-digit subheadings in HS2022.
Subheadings 301 to 400 of 538, page 4 of 6.
84.49 Machinery for the manufacture or finishing of felt or nonwovens in the piece or in shapes, including machinery for making felt hats; blocks for making hats
- 8449.00Machinery for the manufacture or finishing of felt or nonwovens in the piece or in shapes, including machinery for making felt hats; blocks for making hats
84.50 Household or laundry-type washing machines, including machines which both wash and dry
- 8450.11Machines, each of a dry linen capacity not exceeding 10 kg: Fully-automatic machines
- 8450.12Machines, each of a dry linen capacity not exceeding 10 kg: Other machines, with built-in centrifugal drier
- 8450.19Machines, each of a dry linen capacity not exceeding 10 kg: Other
- 8450.20Machines, each of a dry linen capacity exceeding 10kg
- 8450.90Parts
84.51 Machinery (other than machines of heading 84.50) for washing, cleaning, wringing, drying, ironing, pressing (including fusing presses), bleaching, dyeing, dressing, finishing, coating or impregnating textile yarns, fabrics or made up textile articles and machines for applying the paste to the base fabric or other support used in the manufacture of floor coverings such as linoleum; machines for reeling, unreeling, folding, cutting or pinking textile fabrics
- 8451.10Dry-cleaning machines
- 8451.21Drying machines: Each of a dry linen capacity not exceeding 10kg
- 8451.29Drying machines: Other
- 8451.30Ironing machines and presses (including fusing presses)
- 8451.40Washing, bleaching or dyeing machines
- 8451.50Machines for reeling, unreeling, folding, cutting or pinking textile fabrics
- 8451.80Other machinery
- 8451.90Parts
84.56 Machine-tools for working any material by removal of material, by laser or other light or photon beam, ultrasonic, electro- discharge, electro-chemical, electron beam, ionic-beam or plasma arc processes; water-jet cutting machines
- 8456.11Operated by laser or other light or photon beam processes: Operated by laser
- 8456.12Operated by laser or other light or photon beam processes: Operated by other light or photon beam processes
- 8456.20Operated by ultrasonic processes
- 8456.30Operated by electro-discharge processes
- 8456.40Operated by plasma arc processes
- 8456.50Water-jet cutting machines
- 8456.90Other
84.59 Machine-tools (including way-type unit head machines) for drilling, boring, milling, threading or tapping by removing metal, other than lathes (including turning centres) of heading 84.58
- 8459.10Way-type unit head machines
- 8459.21Other drilling machines: Numerically controlled
- 8459.29Other drilling machines: Other
- 8459.31Other boring-milling machines: Numerically controlled
- 8459.39Other boring-milling machines: Other
- 8459.41Other boring machines: Numerically controlled
- 8459.49Other boring machines: Other
- 8459.51Milling machines, knee-type: Numerically controlled
- 8459.59Milling machines, knee-type: Other
- 8459.61Other milling machines: Numerically controlled
- 8459.69Other milling machines: Other
- 8459.70Other threading or tapping machines
84.60 Machine-tools for deburring, sharpening, grinding, honing, lapping, polishing or otherwise finishing metal or cermets by means of grinding stones, abrasives or polishing products, other than gear cutting, gear grinding or gear finishing machines of heading 84.61
- 8460.12Flat-surface grinding machines: Numerically controlled
- 8460.19Flat-surface grinding machines: Other
- 8460.22Other grinding machines: Centreless grinding machines, numerically controlled
- 8460.23Other grinding machines: Other cylindrical grinding machines, numerically controlled
- 8460.24Other grinding machines: Other, numerically controlled
- 8460.29Other grinding machines: Other
- 8460.31Sharpening (tool or cutter grinding) machines: Numerically controlled
- 8460.39Sharpening (tool or cutter grinding) machines: Other
- 8460.40Honing or lapping machines
- 8460.90Other
84.62 Machine-tools (including presses) for working metal by forging, hammering or die forging (excluding rolling mills); machine-tools (including presses, slitting lines and cut-to-length lines) for working metal by bending, folding, straightening, flattening, shearing, punching, notching or nibbling (excluding draw-benches); presses for working metal or metal carbides, not specified above
- 8462.11Hot forming machines for forging, die forging (including presses) and hot hammers: Closed die forging machines
- 8462.19Hot forming machines for forging, die forging (including presses) and hot hammers: Other
- 8462.22Bending, folding, straightening or flattening machines (including press brakes) for flat products: Profile forming machines
- 8462.23Bending, folding, straightening or flattening machines (including press brakes) for flat products: Numerically controlled press brakes
- 8462.24Bending, folding, straightening or flattening machines (including press brakes) for flat products: Numerically controlled panel benders
- 8462.25Bending, folding, straightening or flattening machines (including press brakes) for flat products: Numerically controlled roll forming machines
- 8462.26Bending, folding, straightening or flattening machines (including press brakes) for flat products: Other numerically controlled bending, folding, straightening or flattening machines
- 8462.29Bending, folding, straightening or flattening machines (including press brakes) for flat products: Other
- 8462.32Slitting lines, cut-to-length lines and other shearing machines (excluding presses) for flat products, other than combined punching and shearing machines: Slitting lines and cut-to-length lines
- 8462.33Slitting lines, cut-to-length lines and other shearing machines (excluding presses) for flat products, other than combined punching and shearing machines: Numerically controlled shearing machines
- 8462.39Slitting lines, cut-to-length lines and other shearing machines (excluding presses) for flat products, other than combined punching and shearing machines: Other
- 8462.42Punching, notching or nibbling machines (excluding presses) for flat products including combined punching and shearing machines: Numerically controlled
- 8462.49Punching, notching or nibbling machines (excluding presses) for flat products including combined punching and shearing machines: Other
- 8462.51Machines for working tube, pipe, hollow section and bar (excluding presses): Numerically controlled
- 8462.59Machines for working tube, pipe, hollow section and bar (excluding presses): Other
- 8462.61Cold metal working presses: Hydraulic presses
- 8462.62Cold metal working presses: Mechanical presses
- 8462.63Cold metal working presses: Servo-presses
- 8462.69Cold metal working presses: Other
- 8462.90Other
What it doesn’t cover
Chapter 83, before it, covers miscellaneous articles of base metal; chapter 85, after it, covers electrical machinery and equipment and parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles.
How it is structured
Chapter 84 is the first level of the Harmonized System. Its headings add two digits to the chapter number (84.01), and each heading's subheadings add two more.
In other countries
National tariff lines under chapter 84 are live on border.bot for the United States (1,706 lines, also used by 1 other country).
- United States1,706 lines, used by 1 other country
Frequently asked questions
What does HS chapter 84 cover?
HS chapter 84 covers nuclear reactors, boilers, machinery and mechanical appliances; parts thereof.
How many headings and subheadings are in HS chapter 84?
HS chapter 84 has 86 headings and 538 six-digit subheadings in HS2022.
Which countries’ tariffs list national lines in HS chapter 84?
National tariff lines under chapter 84 are live on border.bot for the United States (1,706 lines, also used by 1 other country).
Sources and updates
The Harmonized System legal text comes from border.bot release 2 (edition HS 2022), imported from a file, and has been live since 11 October 2026.
This page was last updated on 11 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.