| Acronym | Meaning |
| COC | Cleveland Open Cup (Flash Point Test Method) |
| CNDO/OPTIC | CI Method For Elec. Transition Moments Of The Optical Transition Of Large Mols. Based On CNDO/S Parametrization |
| FIBC(A) | Flexible Intermediate Bulk Container (Association) [bulk Bag] |
| FRCI | Fibrous Refractory Concrete Insulator |
| BTCA | Best Technology Currently Available |
| VBSCF | Valence Bond Self-consistent Field |
| ISD | Inclined Substrate Deposition |
| BCCD | Betaine Calcium Chloride Dihydrate |
| FATES | FIRFA And TSCA Enforcement System (now Known As SSTS) |
| WAP | Waste Analysis Plan |