Product Classification Guide

HS Code for Carbon dioxide

2811.21 Carbon dioxide
Chemicals
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Carbon dioxide (CO2) is a naturally occurring chemical compound composed of two oxygen atoms covalently bonded to a single carbon atom. In the Harmonized System, it is classified under HS code 2811.21. This code falls under Heading 2811, which covers other inorganic acids and other inorganic oxygen compounds of non-metals. Carbon dioxide is specifically identified at the six-digit level. This classification applies to CO2 in its gaseous, liquid, or solid state. When in its solid state, it is commonly known as dry ice. The classification is straightforward because CO2 is a well-defined inorganic oxygen compound. It is used extensively in the food industry for carbonation, in the medical field, as a refrigerant, and in fire suppression systems. Proper classification is vital for safety regulations, especially when transported in pressurized cylinders or as a cryogenic liquid. The HS code remains 2811.21 regardless of the purity level, provided it is not mixed with other chemicals to form a new preparation.

Products Included

  • Gaseous carbon dioxide
  • Liquid carbon dioxide
  • Solid carbon dioxide (Dry ice)
  • Carbon dioxide in pressurized cylinders
  • Carbon dioxide for beverage carbonation

Common Misclassification

Carbon dioxide is sometimes misclassified under HS code 2201.10 if it is already dissolved in water (mineral waters and aerated waters). However, the gas itself, even if intended for the beverage industry, belongs in 2811.21. Another common error is classifying dry ice under 3824.99 (other chemical products), but the HS specifically includes the solid form of CO2 under the chemical heading 2811.21. Additionally, it should not be confused with carbon monoxide, which falls under 2811.29.

FAQ

What is the HS code for Carbon dioxide?

The HS code for carbon dioxide in all physical states (gas, liquid, or solid) is 2811.21.

Is dry ice classified differently than gaseous CO2?

No, both dry ice (solid carbon dioxide) and gaseous carbon dioxide are classified under the same HS code, 2811.21.

Industry

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Frequently Asked Questions

What is the HS code for Carbon dioxide?

The HS code for Carbon dioxide is 281121 (Carbon dioxide).

How do I classify Carbon dioxide for customs?

Carbon dioxide is classified under HS code 281121 — Carbon dioxide. This is a 6-digit subheading level code.

Is the HS code for Carbon dioxide the same in all countries?

The base HS code 281121 for Carbon dioxide is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.