UNIVERSAL TREATMENT STANDARDS FOR UNDERLYING HAZARDOUS CONSTITUENTS (UHC) |
| Chemical | Class | Group | CAS Num |
| CCI4 Carbon tetrachloride | Class I | Group IV | 0000056235 |
| CFC-11 (CC13F) Trichlorofluoromethane | Class I | Group I | 0000075694 |
| CFC-111 (C2FCl5) Pentachlorofluoroethane | Class I | Group III | 0000354563 |
| CFC-112 (C2F2Cl4) Tetrachlorodifluoroethane | Class I | Group III | 0000076120 |
| CFC-113 (C2F3Cl3) 1,1,2-Trichlorotrifluoroethane | Class I | Group I | 0000076131 |
| CFC-114 (C2F4Cl2) Dichlorotetrafluoroethane | Class I | Group I | 0000076142 |
| CFC-115 (C2F5Cl) Monochloropentafluoroethane | Class I | Group I | 0000076153 |
| CFC-12 (CCl2F2) Dichlorodifluoromethane | Class I | Group I | 0000075718 |
| CFC-13 (CF3Cl) Chlorotrifluoromethane | Class I | Group III | 0000075729 |
| CFC-211 (C3FCl7) Heptachlorofluoropropane | Class I | Group III | 0000422786 |
| CFC-212 (C3F2Cl6) Hexachlorodifluoropropane | Class I | Group III | 0003182261 |
| CFC-213 (C3F3Cl5) Pentachlorotrifluoropropane | Class I | Group III | 0002354065 |
| CFC-214 (C3F4Cl4) Tetrachlorotetrafluoropropane | Class I | Group III | 0029255310 |
| CFC-215 (C3F5Cl3) Trichloropentafluoropropane | Class I | Group III | 0004259432 |
| CFC-216 (C3F6Cl2) Dichlorohexafluoropropane | Class I | Group III | 0000661972 |
| CFC-217 (C3F7Cl) Chloroheptafluoropropane | Class I | Group III | 0000422866 |
| Halon 1211 (CF2ClBr) Bromochlorodifluoromethane | Class I | Group II | 0000353593 |
| Halon 1301 (CF3Br) Bromotrifluoromethane | Class I | Group II | 0000075638 |
| Halon 2402 (C2F4Br2) Dibromotetrafluoroethane | Class I | Group II | 0000124732 |
| HCFC-121 (C2HFCl4) Tetrachlorofluoroethane | Class II | | 0000354143 |
| HCFC-122 (C2HF2Cl3) Trichlorodifluoroethane | Class II | | 0000354212 |
| HCFC-123 (C2HF3Cl2) Dichlorotrifluoroethane | Class II | | 0000306832 |
| HCFC-124 (C2HF4Cl) Monochlorotetrafluoroethane | Class II | | 0002837890 |
| HCFC-131 (C2H2FCl3) Trichlorofluoroethane | Class II | | 0000359284 |
| HCFC-132b (C2H2F2Cl2) Dichlorodifluoroethane | Class II | | 0001649087 |
| HCFC-133a (C2H2F3Cl) Monochlorotrifluoroethane | Class II | | 0000075887 |
| HCFC-141b (C2H3FCl2) Dichlorofluoroethane | Class II | | 0001717006 |
| HCFC-142b (C2H3F2Cl) Monochlorodifluoroethane | Class II | | 0000075683 |
| HCFC-21 (CHFCl2) Dichlorofluoromethane | Class II | | 0000075434 |
| HCFC-22 (CHF2Cl) Monochlorodifluoromethane | Class II | | 0000075456 |
| HCFC-221 (C3HFCl6) Hexachlorofluoropropane | Class II | | 0000422264 |
| HCFC-222 (C3HF2Cl5) Pentachlorodifluoropropane | Class II | | 0000422491 |
| HCFC-223 (C3HF3Cl4) Tetrachlorotrifluoropropane | Class II | | 0000422526 |
| HCFC-224 (C3HF4Cl3) Trichlorotetrafluoropropane | Class II | | 0000422548 |
| HCFC-225ca (C3HF5Cl2) Dichloropentafluoropropane | Class II | | 0000422560 |
| HCFC-225cb (C3HF5Cl2) Dichloropentafluoropropane | Class II | | 0000507551 |
| HCFC-226 (C3HF6Cl) Monochlorohexafluoropropane | Class II | | 0000431878 |
| HCFC-231 (C3H2FCl5) Pentachlorofluoropropane | Class II | | 0000421943 |
| HCFC-232 (C3H2F2Cl4) Tetrachlorodifluoropropane | Class II | | 0000460899 |
| HCFC-233 (C3H2F3Cl3) Trichlorotrifluoropropane | Class II | | 0007125840 |
| HCFC-234 (C3H2F4Cl2) Dichlorotetrafluoropropane | Class II | | 0000425945 |
| HCFC-235 (C3H2F5Cl) Monochloropentafluoropropane | Class II | | 0000460924 |
| HCFC-241 (C3H3FCl4) Tetrachlorofluoropropane | Class II | | 0000666273 |
| HCFC-242 (C3H3F2Cl3) Trichlorodifluoropropane | Class II | | 0000460639 |
| HCFC-243 (C3H3F3Cl2) Dichlorotrifluoropropane | Class II | | 0000460695 |
| HCFC-244 (C3H3F4Cl) Monochlorotetrafluoropropane | Class II | | NoneListed |
| HCFC-251 (C3H4FCl3) Trichlorofluoropropane | Class II | | 0000421410 |
| HCFC-252 (C3H4F2Cl2) Dichlorodifluoropropane | Class II | | 0000819001 |
| HCFC-253 (C3H4F3Cl) Monochlorotrifluoropropane | Class II | | 0000460355 |
| HCFC-261 (C3H5FCl2) Dichlorofluoropropane | Class II | | 0000420973 |
| HCFC-262 (C3H5F2Cl) Monochlorodifluoropropane | Class II | | 0004210203 |
| HCFC-271 (C3H6FCl) Monochlorofluoropropane | Class II | | 0000430557 |
| HCFC-31 (CH2FCl) Monochlorofluoromethane | Class II | | 0000593704 |
| Methyl Bromide (CH3Br) | Class I | Group VI | 0000074839 |
| Methyl Chloroform (C2H3Cl3) 1,1,1-trichloroethane | Class I | Group V | 0000071556 |
