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T1 HS Codes for HFCs: Advice for countries in Advance of the 2022 HS Code Update - OzonAction Policy Brief
T2 Codigos sa para los HFC: Asistencia para los Paises con Antelacion a la enmienda de codigos del SA en 2022 - Resumen de politicas
T2 Codes SH pour les HFC: Recommandations dans l'attente de la revision des codes SH de 2022 - Dossier Strategies ActionOzone
A1 United Nations Environment Programme, 
K1 ozone-depleting substance
K1 ozone
K1 custom formality
K1 code
K1 hydrofluorocarbon
YR 2019
FD 2019
LK https://wedocs.unep.org/handle/20.500.11822/29244
UL https://wedocs.unep.org/handle/20.500.11822/29244
NO Until the World Customs Organization’s Harmonized Commodity Description and Coding System, or Harmonized System (HS) is revised in 2022, all HS codes for hydrofluorocarbons (HFCs) are contained in a single HS code which does not allow differentiation of the individual chemicals or of mixtures/blends. This document outlines a proactive interim approach, recommended by the World Customs Organization (WCO), to establish additional digits in the existing national HS codes to identify specific HFCs to facilitate monitoring of trade and enable a licencing system to function effectively.
DS UN Environment Document Repository
RD Sep 16, 2026