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T1 Cheat Sheet: Proposed Additional HS Code Sub-Headings for HFCs in Advance of the 2022 HS Code Update - OzonAction Policy Brief
T2 Ficha práctica: Subpartidas adicionales propuestas del código SA para los HFC antes de la actualización del código SA de 2022 – Informe de políticas de OzonAction
A1 United Nations Environment Programme, 
K1 chemical
K1 waste management
K1 work programme
YR 2020
FD 2020
LK https://wedocs.unep.org/handle/20.500.11822/31293
UL https://wedocs.unep.org/handle/20.500.11822/31293
NO This document suggests how the recommendation of the World Customs Organization (WCO) on establishing additional digits in the existing 2017 national HS codes to identify specific HFCs could be implemented.
DS UN Environment Document Repository
RD Sep 20, 2026