HS Code for HFC-152

HFC-152, or 1,2-difluoroethane, is classified under HS code 2903.43. This classification is part of the 2022 Harmonized System nomenclature updates, which reorganized the categories for halogenated derivatives of acyclic hydrocarbons to facilitate the tracking of substances with environmental impact. Heading 2903 covers these derivatives, and subheading 2903.43 specifically groups fluoromethane (HFC-41), 1,2-difluoroethane (HFC-152), and 1,1-difluoroethane (HFC-152a). The classification is determined by the chemical structure: HFC-152 is a saturated acyclic hydrocarbon where two hydrogen atoms have been replaced by fluorine atoms at the 1 and 2 positions. The term "saturated" indicates that the molecule contains no double or triple carbon-carbon bonds. Under the General Rules for the Interpretation of the Harmonized System (GRI), specifically GRI 1 and GRI 6, the product is classified based on the literal terms of the headings and subheadings. Since HFC-152 is an isomer of the more common HFC-152a, they share the same molecular formula (C2H4F2) and are consequently grouped together under this specific code. This classification is vital for environmental monitoring and ensuring that the chemical is subject to the correct regulatory frameworks, such as the Kigali Amendment's phase-down schedules for hydrofluorocarbons.

Products Included

• 1,2-difluoroethane (HFC-152)
• 1,1-difluoroethane (HFC-152a)
• Fluoromethane (HFC-41)
• Pure HFC-152 gas used in chemical synthesis
• Isomeric mixtures of difluoroethanes

Common Misclassification

HFC-152 is often misclassified under HS code 2903.49, which is the "other" category for saturated fluorinated derivatives. Because HFC-152 is explicitly covered by the text of 2903.43, using the residual code 2903.49 is a violation of GRI 1. It is also sometimes confused with 2903.42 (difluoromethane/HFC-32) due to similar naming conventions. Furthermore, if HFC-152 is imported as part of a formulated solvent or refrigerant blend, it must be moved to heading 3824, specifically 3824.78.

FAQ

What is the HS code for HFC-152?

The HS code for HFC-152 (1,2-difluoroethane) is 2903.43.

How does HFC-152 differ from HFC-152a in classification?

Both HFC-152 and HFC-152a are isomers and are classified under the same HS code, 2903.43, as they are both saturated difluoroethanes explicitly listed in that subheading.