| Acronym | Meaning |
| OE | Office Of Enforcement |
| PSCA | Periodic Small-cluster Approach (a Many-body Technique In Electronic-structure Calcns.) |
| TPO | Technical Project Officer |
| ADONIS | Article Delivery Over Network Information Systems |
| TOFA | Tall Oil Fatty Acids |
| HWRA | Hazardous Waste Reduction Act |
| MWPC | Multiwire Proportional Chamber |
| PIC | Products Of Incomplete Combustion |
| ACP | Approximate Coupled-pair (method For Correlation-energy Calcn.) |
| VCAM-1 | Vascular Cell Adhesion Mol. 1 |