| Acronym | Meaning |
| MIC | Methyl Isocyanate |
| BTB | Bromothymol Blue |
| DDE | Dichlorodiphenyldichloroethylene |
| MTEL | Maximum Tolerable Exposure Levels |
| BPEO | Best Practicable Environmental Option |
| RRPA | Renormalized Random-phase Approxn. |
| MCC | Motor Control Center |
| BDA | Biotinylated Dextran Amine |
| HFB SCF RPA | Hartree Fock Bogolyubov SCF Random Phase Approximation |
| FRED | Flexible Regional Emissions Data System |