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 401 to 500 of 538, page 5 of 6.
84.65 Machine-tools (including machines for nailing, stapling, glueing or otherwise assembling) for working wood, cork, bone, hard rubber, hard plastics or similar hard materials
- 8465.10Machines which can carry out different types of machining operations without tool change between such operations
- 8465.20Machining centres
- 8465.91Other: Sawing machines
- 8465.92Other: Planing, milling or moulding (by cutting) machines
- 8465.93Other: Grinding, sanding or polishing machines
- 8465.94Other: Bending or assembling machines
- 8465.95Other: Drilling or morticing machines
- 8465.96Other: Splitting, slicing or paring machines
- 8465.99Other: Other
84.66 Parts and accessories suitable for use solely or principally with the machines of headings 84.56 to 84.65, including work or tool holders, self-opening dieheads, dividing heads and other special attachments for the machines; tool holders for any type of tool for working in the hand
- 8466.10Tool holders and self-opening dieheads
- 8466.20Work holders
- 8466.30Dividing heads and other special attachments for machines
- 8466.91Other: For machines of heading 84.64
- 8466.92Other: For machines of heading 84.65
- 8466.93Other: For machines of headings 84.56 to 84.61
- 8466.94Other: For machines of heading 84.62 or 84.63
84.67 Tools for working in the hand, pneumatic, hydraulic or with self-contained electric or non-electric motor
- 8467.11Pneumatic: Rotary type (including combined rotary-percussion)
- 8467.19Pneumatic: Other
- 8467.21With self-contained electric motor: Drills of all kinds
- 8467.22With self-contained electric motor: Saws
- 8467.29With self-contained electric motor: Other
- 8467.81Other tools: Chain saws
- 8467.89Other tools: Other
- 8467.91Parts: Of chain saws
- 8467.92Parts: Of pneumatic tools
- 8467.99Parts: Other
84.70 Calculating machines and pocket-size data recording, reproducing and displaying machines with calculating functions; accounting machines, postage-franking machines, ticket-issuing machines and similar machines, incorporating a calculating device; cash registers
- 8470.10Electronic calculators capable of operation without an external source of electric power and pocket-size data recording, reproducing and displaying machines with calculating functions
- 8470.21Other electronic calculating machines: Incorporating a printing device
- 8470.29Other electronic calculating machines: Other
- 8470.30Other calculating machines
- 8470.50Cash registers
- 8470.90Other
84.71 Automatic data processing machines and units thereof; magnetic or optical readers, machines for transcribing data onto data media in coded form and machines for processing such data, not elsewhere specified or included
- 8471.30Portable automatic data processing machines, weighing not more than 10kg, consisting of at least a central processing unit, a keyboard and a display
- 8471.41Other automatic data-processing machines: Comprising in the same housing at least a central processing unit and an input and output unit, whether or not combined
- 8471.49Other automatic data-processing machines: Other, presented in the form of systems
- 8471.50Processing units other than those of subheading 8471 41 or 8471 49, whether or not containing in the same housing one or two of the following types of unit: storage units, input units, output units
- 8471.60Input or output units, whether or not containing storage units in the same housing
- 8471.70Storage units
- 8471.80Other units of automatic data processing machines
- 8471.90Other
84.73 Parts and accessories (other than covers, carrying cases and the like) suitable for use solely or principally with machines of headings 84.70 to 84.72
- 8473.21Parts and accessories of the machines of heading 8470: Of the electronic calculating machines of subheading 8470 10, 8470 21 or 8470 29
- 8473.29Parts and accessories of the machines of heading 8470: Other
- 8473.30Parts and accessories of the machines of heading 84.71
- 8473.40Parts and accessories of the machines of heading 84.72
- 8473.50Parts and accessories equally suitable for use with the machines of two or more of the headings 84.70 to 84.72
84.74 Machinery for sorting, screening, separating, washing, crushing, grinding, mixing or kneading earth, stone, ores or other mineral substances, in solid (including powder or paste) form; machinery for agglomerating, shaping or moulding solid mineral fuels, ceramic paste, unhardened cements, plastering materials or other mineral products in powder or paste form; machines for forming foundry moulds of sand
- 8474.10Sorting, screening, separating or washing machines
- 8474.20Crushing or grinding machines
- 8474.31Mixing or kneading machines: Concrete or mortar mixers
- 8474.32Mixing or kneading machines: Machines for mixing mineral substances with bitumen
- 8474.39Mixing or kneading machines: Other
- 8474.80Other machinery
- 8474.90Parts
84.75 Machines for assembling electric or electronic lamps, tubes or valves or flashbulbs, in glass envelopes; machines for manufacturing or hot working glass or glassware
- 8475.10Machines for assembling electric or electronic lamps, tubes or valves or flashbulbs, in glass envelopes
- 8475.21Machines for manufacturing or hot working glass or glassware: Machines for making optical fibres and preforms thereof
- 8475.29Machines for manufacturing or hot working glass or glassware: Other
- 8475.90Parts
84.77 Machinery for working rubber or plastics or for the manufacture of products from these materials, not specified or included elsewhere in this Chapter
- 8477.10Injection-moulding machines
- 8477.20Extruders
- 8477.30Blow moulding machines
- 8477.40Vacuum moulding machines and other thermoforming machines
- 8477.51Other machinery for moulding or otherwise forming: For moulding or retreading pneumatic tyres or for moulding or otherwise forming inner tubes
- 8477.59Other machinery for moulding or otherwise forming: Other
- 8477.80Other machinery
- 8477.90Parts
84.79 Machines and mechanical appliances having individual functions, not specified or included elsewhere in this Chapter
- 8479.10Machinery for public works, building or the like
- 8479.20Machinery for the extraction or preparation of animal or fixed vegetable or microbial fats or oils
- 8479.30Presses for the manufacture of particle board or fibre building board of wood or other ligneous materials and other machinery for treating wood or cork
- 8479.40Rope or cable-making machines
- 8479.50Industrial robots, not elsewhere specified or included
- 8479.60Evaporative air coolers
- 8479.71Passenger boarding bridges: Of a kind used in airports
- 8479.79Passenger boarding bridges: Other
- 8479.81Other machines and mechanical appliances: For treating metal, including electric wire coil-winders
- 8479.82Other machines and mechanical appliances: Mixing, kneading, crushing, grinding, screening, sifting, homogenising, emulsifying or stirring machines
- 8479.83Other machines and mechanical appliances: Cold isostatic presses
- 8479.89Other machines and mechanical appliances: Other
- 8479.90Parts
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.