HS Code for Nuclear reactors

The classification of nuclear reactors under HS code 8401.10 is governed by the specific technical definitions provided in the Harmonized System's Chapter 84. This chapter generally encompasses machinery and mechanical appliances. Heading 8401 is dedicated to nuclear reactors, fuel elements (cartridges), non-irradiated, for nuclear reactors, and apparatus for isotopic separation. Within this heading, subheading 8401.10 specifically isolates the nuclear reactor itself. A nuclear reactor, for the purposes of this classification, includes the entire assembly of components within the biological shield, including the core, the moderator, the control rods, and the reactor vessel. The classification logic follows General Interpretative Rule (GRI) 1, which states that classification is determined by the terms of the headings and any relative section or chapter notes. Since 8401.10 explicitly names "Nuclear reactors," it takes precedence over more general machinery codes. It is important to note that this code covers the reactor as a functional unit designed to initiate and control a self-sustained nuclear chain reaction, regardless of its intended use for power generation, research, or isotope production.

Products Included

• Pressurized Water Reactors (PWR)
• Boiling Water Reactors (BWR)
• Fast Breeder Reactors (FBR)
• High-Temperature Gas-Cooled Reactors (HTGR)
• Research and training reactors
• Small Modular Reactors (SMR)

Common Misclassification

Nuclear reactors are frequently confused with other components in heading 8401. Specifically, non-irradiated fuel elements (cartridges) are classified under 8401.30, while general parts of nuclear reactors fall under 8401.40. Furthermore, steam-generating boilers used in nuclear power plants are often incorrectly classified here; however, they belong under heading 8402. Electric generating sets powered by nuclear energy are classified under heading 8502. The distinction lies in whether the item is the reactor core assembly itself or an auxiliary piece of equipment used in the broader power cycle.

FAQ

What is the HS code for nuclear reactors?

The primary HS code for nuclear reactors is 8401.10, which covers the reactor assembly designed for controlled nuclear fission.

Are nuclear fuel rods included in this code?

No, non-irradiated fuel elements or cartridges are classified under HS code 8401.30, while irradiated (spent) fuel elements are classified under 2844.50.