Harmonized System
Section VI > Chapter 29 > Heading 2903 > 2903.2 > 2903.21
Vinyl chloride (chloroethylene)
Section VI > Chapter 29 > Heading 2903 > 2903.2 > 2903.22
Trichloroethylene
Section VI > Chapter 29 > Heading 2903 > 2903.2 > 2903.23
Tetrachloroethylene (perchloroethylene)
Section VI > Chapter 29 > Heading 2903 > 2903.4 > 2903.41
Trifluoromethane (HFC-23)
Section VI > Chapter 29 > Heading 2903 > 2903.4 > 2903.42
Difluoromethane (HFC-32)
Section VI > Chapter 29 > Heading 2903 > 2903.4 > 2903.43
Fluoromethane (HFC-41), 1,2-difluoroethane (HFC-152) and 1,1-difluoroethane (HFC-152a)
Section VI > Chapter 29 > Heading 2903 > 2903.4 > 2903.44
Pentafluoroethane (HFC-125), 1,1,1-trifluoroethane (HFC-143a) and 1,1,2-trifluoroethane (HFC-143)
Section VI > Chapter 29 > Heading 2903 > 2903.4 > 2903.45
1,1,1,2-Tetrafluoroethane (HFC-134a) and 1,1,2,2-tetrafluoroethane (HFC-134)
Section VI > Chapter 29 > Heading 2903 > 2903.4 > 2903.46
1,1,1,2,3,3,3-Heptafluoropropane (HFC-227ea), 1,1,1,2,2,3-hexafluoropropane (HFC-236cb), 1,1,1,2,3,3-hexafluoropropane (HFC-236ea) and 1,1,1,3,3,3-hexafluoropropane (HFC-236fa)